Question

1. Ca(OH)2(aq) + H3PO4(aq) à Ca3(PO4)2(aq) + H2O(l)

a. If you have 13.7mol of Ca(OH)2, how many grams of H2O are produced?

b. How many grams of H3PO4 are required to produce 102.3g Ca3(PO4)2?



c. How many moles of Ca(OH)2 are needed to produce 82.9g of Ca3(PO4)2?




2. Al2(SO4)3 + Ca(OH)2à Al(OH)3 + CaSO4


a. What mass of Ca(OH)2 is needed to react with 132.8g Al2(SO4)3?

b. How many molecules of CaSO4 are produced if 145g of Al(OH)3 are also produced?

Answer 1

http://www.jiskha.com/display.cgi?id=1301167686

Answer 2

all the coco

Answer 3

I need help on this, I don't know the answers