13. What is the molar mass of (NH4) 3PO4? (Use whole number molar masses) *

a. 113 g

b. 121 g

c. 149 g

d. 339 g

14. What is the mass of oxygen in 300 g of sulfuric acid (H2SO4) ? *

a. 64 g

b. 196 g

c. 210 g

d. 300 g

How did the planets form? Question 12 options: None of these answers are correct Large stars had gravity and brought matter together The planets were instantly created during the big bang Gravity pulled small bits of rock and dust together to form a

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Calculate the mass of potassium sulphate required to prepare its 10% solution in 100g water.

Peter is 5 ft, 11 inches tall. Paul is 176 cm tall. Who is taller?

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