how many equivalents are in 0.036 moles of Ca2+?
how many equivalents are in 0.036 moles of Ca2+?
Solution
We know,
1. Moles = Given mass /Molar mass
2. Equivalents = Given mass/ Equivalent mass
3. Equivalent mass of an ion = Molar mass / charge of the ion
From 1 and 2
Moles / Equivalents =Equivalent mass/ Molar mass
Substitute the value of Equivalent mass from 3
Then, Moles / Equivalents = (Molar mass /charge on the ion) / Molar mass = 1/charge on the ion = 1/2
ie Equivalents = 2 x Moles = 2 x 0.036 = 0.072
Number of equivalents in 0.036 moles Ca 2+ = 0.072
.
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how many equivalents are in 0-036 moles of Ca2+- how many equivalents.docx
1. how many equivalents are in 0.036 moles of Ca2+?
how many equivalents are in 0.036 moles of Ca2+?
Solution
We know,
1. Moles = Given mass /Molar mass
2. Equivalents = Given mass/ Equivalent mass
3. Equivalent mass of an ion = Molar mass / charge of the ion
From 1 and 2
Moles / Equivalents =Equivalent mass/ Molar mass
Substitute the value of Equivalent mass from 3
Then, Moles / Equivalents = (Molar mass /charge on the ion) / Molar mass = 1/charge on the ion
= 1/2
ie Equivalents = 2 x Moles = 2 x 0.036 = 0.072
Number of equivalents in 0.036 moles Ca 2+ = 0.072
