Calculate the gram formula mass of Ba(OH)₂•8H₂O (Round answer to the tenth place and only put the number)

(a)  

What is the percentage of water in Ba(OH)₂•8H₂O ( Round your answer to the WHOLE NUMBER do not use any symbols)

(a)  

Calculate the percent of water in a hydrate using the following information: Mass of hydrate 93.0 g, Mass of anhydrous compound 71.3 g ( Round answer to the tenth place and use no symbols in answer)

(a)  

Calculate the number of moles in 119 grams of H₂0. Round your answer to the TENTH place use no symbols in answer

(a)  

Calculate the mass in grams of 5.0x10²⁵ molecules of water (Round your answer to the TENTH Place use no units in answer)

(a)  

When the following equation is balanced what is the SUM of the coefficients:
___ K3PO4 +___ HCl ---> _____   KCl + ____  H3PO4

(a)