1.Convert 2.37 moles of Al(NO3)3 to grams.. Single choice. (25 Points)

0.011 grams

504.8 grams

438 grams

633 grams

0.0089 grams

2.Convert 456.89 grams of O2 to moles.. Single choice.
(25 Points)

28.6 moles

7.14 moles

14620 moles

14.3 moles

29241 moles

1.   504.8 g Al(NO3)3

2.   14.3 moles O2

Explanation:

1.

g = moles x molar mass = 2.37 x 212.996 = 504.8 g Al(NO3)3

MM Al(NO3)3 = 212.996 g/mol

2.

moles = mass : molar mass = 456.89: 32 = 14.3 moles O2

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