Science, asked by harshargowda2021, 9 months ago

how much of calcium is obtained from 75g from calcium sulphate​

Answers

Answered by aryansuthar890
2

Answer:

Explanation:

What would you like to ask?

11th

Chemistry

Some Basic Concepts of Chemistry

Stoichiometry and Stoichiometric Calculations

3.40 g of CaSO4 (MW = 136 g...

CHEMISTRY

3.40 g of CaSO

4

(MW=136 g/mol) is formed when 4.30 g of hydrated calcium sulphate heated to a constant mass. How many moles of water of crystallisation are combined with each mole of calcium sulphate?

MEDIUM

Share

Study later

ANSWER

CaSO

4

=

136

3.40

=0.025 mole

Mass of H

2

O= mass of hydrated salt - mass of anhydrous salt

=4.30−3.40

=0.90 g

n

H

2

O

=

18

0−90

=0.05 mole

0.025 mole CaSO

4

→0.05 mole H

2

O

∴1 mole CaSO

4

0.025

0.05

=2 mole H

2

O

Formula of hydrated CaSO

4

is CaSO

4

.2H

2

O

Similar questions