223k views
20 votes
Two moles of MgsO4•7H2O contain ___ grams of MgSO4•7H2O

1 Answer

5 votes

Answer:

492.6g

Step-by-step explanation:

Given parameters:

Number of moles of MgSO₄.7H₂O = 2moles

Unknown:

Mass = ?

Solution:

To find the mass of this compound;

Mass = number of moles x molar mass

Molar mass of MgSO₄.7H₂O = 24.3 + 32 + 4(16) + 7[2(1) + 16]

= 246.3g/mol

Mass = 2 x 246.3 = 492.6g

User DylanJ
by
6.2k points