SCE1034 BIOLOGI I
Ujian Makanan: Menguji kandungan makanan untuk kanji, karbohidrat, gula penurun, gula bukan menurun, protein dan lipid
By: Atifah Ruzana binti Abd Wahab, PPISMP Sains Ambilan Jun 2014, IPG Kampus Kent Tuaran Sabah
Pengenalan kepada topik pecahan dengan penerangan yang mudah difahami oleh pelajar. Bagaimana untuk menggunakan dan menulis pecahan?
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Introduction to fraction in simplified version. Easy for kids to understand the concept.
http://riverofpuzzles.blogspot.my/2017/01/kenali-encik-pecahan.html
GRUPO FAVORITO DE MUCHOS Y SON LOS MEJORES DEL MUNDO, COMENZARON DE LO MAS BAJO Y AHORA ESTÁN EN LO MÁS ALTO, SU TRIUNFO NOS ENSEÑA ALGO EN LA VIDA Y ESO ES DE QUE TODOS LOS SUEÑOS SE CUMPLEN.
SCE1034 BIOLOGI I
Ujian Makanan: Menguji kandungan makanan untuk kanji, karbohidrat, gula penurun, gula bukan menurun, protein dan lipid
By: Atifah Ruzana binti Abd Wahab, PPISMP Sains Ambilan Jun 2014, IPG Kampus Kent Tuaran Sabah
Pengenalan kepada topik pecahan dengan penerangan yang mudah difahami oleh pelajar. Bagaimana untuk menggunakan dan menulis pecahan?
----
Introduction to fraction in simplified version. Easy for kids to understand the concept.
http://riverofpuzzles.blogspot.my/2017/01/kenali-encik-pecahan.html
GRUPO FAVORITO DE MUCHOS Y SON LOS MEJORES DEL MUNDO, COMENZARON DE LO MAS BAJO Y AHORA ESTÁN EN LO MÁS ALTO, SU TRIUNFO NOS ENSEÑA ALGO EN LA VIDA Y ESO ES DE QUE TODOS LOS SUEÑOS SE CUMPLEN.
Amherst Madison Real Estate - An Overview of Successscaporale
We are a New Model in Real Estate. Brokerages carrying the Amherst Madison name represent the highest standards of service. Our success comes from a culture of personal integrity, a strict code of business practices, proven track record in all price ranges, and an unwavering commitment to our clients and community.
Amherst Madison’s unique business model and systems are based on a core belief that we are here to support our agents. We are devoted to providing a “world-class” branding platform, superior productivity tools, and a supportive culture centered on personal advancement. The modern real estate landscape has made what we offer more relevant than ever before. We operate in a full-service environment (with transaction and marketing support) yet our commission model is commensurate with transaction-fee companies making us an unparallelled value proposition.
Chapter - 3, Atoms And Molecules, (Mole Concept) Science, Class 9Shivam Parmar
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Chapter - 3, Atoms And Molecules, (Mole Concept) Science, Class 9
INTRODUCTION
MORE ABOUT MOLE
WHAT IS THE MOLE CONCEPT?
MORE ABOUT MOLE CONCEPT
RELATIONSHIP BETWEEN MOLE, AVOGADRO NUMBER, AND MASS
AVOGADRO NUMBER
FEW MORE EXAMPLES
Every topic of this chapter is well written concisely and visuals will help you in understanding and imagining the practicality of all the topics.
By Shivam Parmar (PPT Designer)
Telco Churn Rate Analysis - AEDA Capstone Sook Yen Wong
Working with a team of tech-savvy data scientists, business analysts and IT engineers to develop a Capstone project presentation with Python, SQL, Data Storytelling and Tableau within 2 days! We managed to crack the code with data and provide ideas and solutions to better improve the churn rate for Telco!
Mandarin Oriental's "Fan Campaign" has generated 400% returns since its inception.
Find out how does this advertising strategy helps generate extravagant revenues for Mandarin Oriental :)
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I learn that simplicity is the key when they work on their company culture.
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This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
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In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2. The Mole
• A counting unit
• Similar to a dozen, except instead
of 12, it’s 602 billion trillion
602,000,000,000,000,000,000,000
• 6.02 X 1023 (in scientific notation)
• This number is named in honor of
Amedeo _________ (1776 – 1856), 1856)
who studied quantities of gases
and discovered that no matter what
the gas was, there were the same
number of molecules present
3. Avogadro’s Number
• Avogadro’s number (symbol N) is the number of
atoms in 12.01 grams of carbon.
• Its numerical value is 6.02 × 1023.
• Therefore, a 12.01 g sample of carbon contains
6.02 × 1023 carbon atoms.
3
4. The Mole
• The mole (mol) is a unit of measure for an amount of a
chemical substance.
• A mole is Avogadro’s number of particles, which is 6.02 ×
1023 particles.
1 mol = Avogadro’s number = 6.02 × 1023 units
• We can use the mole relationship to convert between
the number of particles and the mass of a substance.
4
5. Analogies for Avogadro’s Number
• The volume occupied by one mole of softballs would be
about the size of the Earth.
• One mole of Olympic shotput balls has about the same
mass as the Earth.
5
6. One Mole of Several Substances
C12H22O11 H 2O
lead mercury
K2Cr2O7
sulfur
copper NaCl
6
10. Molar Mass
• The atomic mass of any substance expressed in grams is
the molar mass (MM) of that substance.
• The atomic mass of iron is 55.85 amu.
• Therefore, the molar mass of iron is 55.85 g/mol.
• Since oxygen occurs naturally as a diatomic, O2, the
molar mass of oxygen gas is 2 times 16.00 g or 32.00
g/mol.
10
14. Mole Calculations
• Now we will use the molar mass of a compound to
convert between grams of a substance and moles or
particles of a substance.
6.02 × 1023 particles = 1 mol = molar mass
• If we want to convert particles to mass, we must first
convert particles to moles and then we can convert
moles to mass.
14
20. Molar Volume
• At standard temperature and pressure, 1 mole of
any gas occupies 22.4 L.
• The volume occupied by 1 mole
of gas (22.4 L) is called the molar
volume.
• Standard temperature and
pressure are 0°C and 1 atm.
20
21. Molar Volume of Gases
• We now have a new unit factor equation:
1 mole gas = 6.02 × 1023 molecules gas = 22.4 L gas
21
22. Gas Density
• The density of gases is much less than that of
liquids.
• We can calculate the density of any gas at STP
easily.
• The formula for gas density at STP is:
molar mass in grams/mol
= density, g/L
molar volume in liters/mol
22
24. Example 9
• We can also use molar volume to calculate the molar
mass of an unknown gas.
• 1.96 g of an unknown gas occupies 1.00 L at STP. What
is the molar mass?
• We want g/mol; we have g/L.
24
25. Mole Unit Factors
• We now have three interpretations for the mole:
– 1 mol = 6.02 × 1023 particles
– 1 mol = molar mass
– 1 mol = 22.4 L at STP for a gas
• This gives us 3 unit factors to use to convert
between moles, particles, mass, and volume.
25
26. Example 10
• A sample of methane, CH4, occupies 4.50 L at STP.
How many moles of methane are present?
26
27. Example 11
• What is the mass of 3.36 L of ozone gas, O3, at
STP?
27
28. Example 12
• How many molecules of hydrogen gas, H2, occupy
0.500 L at STP?
28
32. Percent Composition
• The percent composition of a compound lists the mass
percent of each element.
• For example, the percent composition of water, H2O is:
– 11% hydrogen and 89% oxygen
• All water contains 11%
hydrogen and 89% oxygen
by mass.
32
33. Calculating Percent Composition
• There are a few steps to calculating the percent
composition of a compound. Let’s practice using H2O.
– Assume you have 1 mole of the compound.
– One mole of H2O contains 2 mol of hydrogen and 1
mol of oxygen.
– 2(1.01 g H) + 1(16.00 g O) = molar mass H2O
– 2.02 g H + 16.00 g O = 18.02 g H2O
33
34. Calculating Percent Composition
• Next, find the percent composition of water by
comparing the masses of hydrogen and oxygen in
water to the molar mass of water:
2.02 g H
%H= × 100% = 11.2% H
18.02 g H2O
16.00 g O
% O = 18.02 g H O × 100% = 88.79% O
2
34
35. Example 13
• TNT (trinitrotoluene) is a white crystalline
substance that explodes at 240 °C. Calculate the
percent composition of TNT, C7H5(NO2)3.
35
37. Empirical Formulas
• The empirical formula of a compound is the simplest
whole number ratio of ions in a formula unit or atoms of
each element in a molecule.
• The molecular formula of benzene is C6H6.
– The empirical formula of benzene is CH.
• The molecular formula of octane is C8H18.
– The empirical formula of octane is C4H9.
37
38. Calculating Empirical Formulas
• We can calculate the empirical formula of a compound
from its composition data.
• We can determine the mole ratio of each element from
the mass to determine the formula of radium oxide, Ra?
O?.
• A 1.640 g sample of radium metal was heated to
produce 1.755 g of radium oxide. What is the empirical
formula?
• We have 1.640 g Ra and 1.755-1.640 = 0.115 g O.
38
39. Calculating Empirical Formulas
• The molar mass of radium is 226.03 g/mol, and the
molar mass of oxygen is 16.00 g/mol.
1 mol Ra
1.640 g Ra × = 0.00726 mol Ra
226.03 g Ra
1 mol O
0.115 g O × = 0.00719 mol O
16.00 g O
• We get Ra0.00726O0.00719. Simplify the mole ratio by dividing
by the smallest number.
• We get Ra1.01O1.00 = RaO is the empirical formula.
39
40. Example 14
• Determine the empirical formula of sodium
sulfate given the following data
A 3.00 g sample of NaxSyOz is comprised of 0.9722
g of sodium, 0.678 g of sulfur and 1.35 g of
oxygen
40
41. Empirical Formulas from Percent Composition
• We can also use percent composition data to calculate
empirical formulas.
• Assume that you have 100 grams of sample.
• Acetylene is 92.2% carbon and 7.83% hydrogen. What is
the empirical formula?
• If we assume 100 grams of sample, we have 92.2 g
carbon and 7.83 g hydrogen.
41
42. Empirical Formula for Acetylene
• Calculate the moles of each element:
1 mol C
92.2 g C × = 7.68 mol C
12.01 g C
1 mol H
7.83 g H × = 7.75 mol H
1.01 g H
• The ratio of elements in acetylene is C7.68H7.75. Divide by
the smallest number to get the formula:
7.68 7.75
C 7.68 H 7.68 = C1.00H1.01 = CH
42
43. Example 15
• Find the empirical formula of Iron(III) chloride
from the following data
• In Iron(III) chloride
– Fe 34.43 % by mass
– Cl 65.57 % by mass
43
44. Molecular Formulas
• The empirical formula for acetylene is CH. This
represents the ratio of C to H atoms on acetylene.
• The actual molecular formula is some multiple of the
empirical formula, (CH)n.
• Acetylene has a molar mass of 26 g/mol. Find n to find
the molecular formula:
(CH)n 26 g/mol n = 2 and the molecular
=
CH 13 g/mol formula is C2H2.
44
45. Example 16
• Find the empirical and molecular formula for
hydrazine, NxHy
• The molar mass of hydrazine is 32.046 g/mol
• In hydrazine
– N is 87.42% by mass
– H is 12.58 % by mass
45