What is the formula mass of calcium sulfate dihydrate [CaSO4⋅2H2O]?

Be sure to add the water of hydration, which is the 2H2O part (water surrounding the calcium sulfate).

136 g/mol

154 g/mol

164 g/mol

172 g/mol

172 is correct

Question

Mya Manning

Chemistry

6 November, 01:27

What is the formula mass of calcium sulfate dihydrate [CaSO4⋅2H2O]?

Be sure to add the water of hydration, which is the 2H2O part (water surrounding the calcium sulfate).

136 g/mol

154 g/mol

164 g/mol

172 g/mol

172 is correct

+4

Answers (1)

Know the Answer?

Elaina Reese · Answer 1

Option d = 172 g/mol

Explanation:

Formula mass of [CaSO₄.2H₂O]

Formula mass = 40.078 + 32.065 + 4*16 + 4 + 16*2

Formula mass = 40.078 + 32.065 + 64 + 4 + 32

Formula mass = 172.143 g/mol

so, 172 g/mol is the correct answer.

What is the formula mass of calcium sulfate dihydrate [CaSO4⋅2H2O]?Be sure to add the water of hydration, which is the 2H2O part (water surrounding the calcium sulfate).136 g/mol154 g/mol164 g/mol172 g/mol172 is correct

What is the formula mass of calcium sulfate dihydrate [CaSO4⋅2H2O]?

Be sure to add the water of hydration, which is the 2H2O part (water surrounding the calcium sulfate).

136 g/mol

154 g/mol

164 g/mol

172 g/mol

172 is correct