# Chemistry

posted by .

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?

## Similar Questions

1. ### Chemistry

Wow, ok, that helps a LOT!! I guess you can't very easily balance an equation that can never happen! :) Thanks a lot! Just to make things clear, wouldn't it have to be Mg3(PO4)2, from balancing the charges?
2. ### chemistry

the question reads: a) balance the equation: H3PO4 + Ca(OH)2 --> Ca3(PO4)2 + H2O b)what mass of each product results if 750 mL of 6.00 M H3PO4 reacts according to the equation?
3. ### chemistry

Calcium carbonate reacts with phosphoric acid to produce calcium phosphate, carbon dioxide, and water. 3 CaCO3(s) + 2 H3PO4(aq) Ca3(PO4)2(aq) + 3 CO2(g) + 3 H2O(l) How many grams of phosphoric acid react with excess calcium carbonate …
4. ### Chemistry

Calcium carbonate reacts with phosphoric acid to produce calcium phosphate, carbon dioxide, and water. 3 CaCO3(s) + 2 H3PO4(aq) Ca3(PO4)2(aq) + 3 CO2(g) + 3 H2O(l) How many grams of phosphoric acid react with excess calcium carbonate …
5. ### Chemistry

1. Ca(OH)2 + H3PO4 ---> H2O + Ca3(PO4)2 (A) How many moles of H3PO4 are needed to make 15g of H2O?
6. ### CHM

Need help please Which of the following equations has the coefficients 2,1,1,2 when it is balanced?
7. ### chem hwk help!

Given the following reaction: 3 CaCl2 + 2 H3PO4 Ca3(PO4)2 + 6 HCl How many grams of H3PO4 are needed to react completely with 1.837 g of CaCl2?
8. ### chem

Consider the following neutralisation reaction: 2 H3PO4(aq) + 3 Ca(OH)2 (aq) → Ca3(PO4)2 + 6 H2O Determine the volume of 0.75 M H3PO4 necessary to neutralise 35 ml of 0.45 M Ca(OH)2
9. ### chemistry

H3PO4+3Ca(OH)2=Ca3(PO4)2=6H2O If 44.6g of Ca3(PO4)2 are formed in the above reaction, how many moles of H3PO4 must have been consumed?
10. ### Chemistry

If you have 225 grams of Ca3(PO4)2, and 185g H3PO4; calculate which is the limiting reagent, which the XS reagent, and how much product you will produce from the limiting reagent (in grams) Ca(PO4)2 + 4H3PO4 = 3Ca(H2PO4)2

More Similar Questions