Chemistry Questionnaire

What is the sum of all the stoichiometric coefficients in the  balanced chemical equation for the reaction of aluminium with platinum  (IV) nitrate? Platinum solid and aluminium nitrate are produced.       

Group of answer choices

16

14       

13       

12       

15       

11       

10       

2. Determine the mass of the product from the following data.

Mass Aluminum Foil (g)

6.3284

Mass Filter Paper (g)

0.2489

Mass Filter Paper + Product (g)

86.2751

Mass Product (g)

Group of answer choices

86.0263 g

86.0262 g

86.0260 g

86.0264 g

86.0261 g

3. 80.9460 g of aluminum (26.982 g/mol) are reacted with 718.2405 g of copper(II) sulfate (159.609 g/mol)? Select the best answer?

Group of answer choices 

copper(II) sulfate is the limiting reactant

 copper & aluminum sulfate are both the limiting reactants

 aluminum is the limiting reactant

 copper is the limiting reactant

 aluminum sulfate is the limiting reactant

 aluminum & copper(II) sulfate are both the limiting reactants