Answered

Westonci.ca offers quick and accurate answers to your questions. Join our community and get the insights you need today. Join our Q&A platform and get accurate answers to all your questions from professionals across multiple disciplines. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

Bath salts such as epsom contain hydrate salts such as mgso4·7h2o (magnesium sulfate heptahydrate). When heated, water is released as vapor and anhydrous mgso4 remains. Determine how many moles of vapor are released when 15. 5 g of mgso4·7h2o are heated. Hint: include h2o when calculating the molar mass.

Sagot :

ogorwyne

The moles of vapor released is 0.357 mol/H2O

The molar mass of the salt is the same as that of water times the moles of H2O

mgso4·7h2o

This is also the same as:

Molar mass of (MgSO₄) + 7 * molar mass of (H₂O)

Molar mass of (MgSO₄) =  168g/mol

molar mass of (H₂O) = 18 g/mol

mgso4·7h2o = 168 +7*18

= 168+126

= 294g/mol

15.5 mols of mgso4·7h2o

[tex]15.5*\frac{126}{294} *\frac{1}{18}[/tex]

= 0.357

The moles of vapor released is 0.357 mol/H2O

Read more on molar mass here: https://brainly.com/question/15476873

We appreciate your visit. Hopefully, the answers you found were beneficial. Don't hesitate to come back for more information. Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. Westonci.ca is here to provide the answers you seek. Return often for more expert solutions.