Seudónimo Seudónimo

20-04-2022
Chemistry

contestada

What mass of Ca(OH)2 is contained in 1500 mL of 0.0250 M Ca(OH)2 solution?

Your answer:

1.85 g

2.34 g

2.78 g

3.17 g

Respuesta :

Аноним Аноним

21-04-2022

We need moles of Ca(OH)_2

Molarity=Moles/Volume in L
0.025=Moles/1.5
Moles=1.5(0.025)
Moles=0.0375mol

Molar mass of Ca(OH)_2=74g/mol

Now

Mass=Molar mass×Moles
Mass=0.0375×74
Mass=2.77g

Option C

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