Friday
August 1, 2014

Homework Help: chemistry

Posted by Anonymous on Thursday, February 28, 2008 at 6:09pm.

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?

i balanced it with:
2H3PO4 + 3Ca(OH)2 --> Ca3(PO4)2 + 6H2O

but i'm not sure where to go from there

also,

A solution is made by dissolving 26.42 g of (NH4)2SO4 in enough H2O to make 50.00 mL of solution.

a) what is the molar mass of (NH4)2SO4?
b) what are the products of the solution?
c) how many milliliters of solution are needed?

i got:
a) 196g/mol
b) (NH4)2SO4 + H2O --> NH4O + SO4H
c) 2.7 M

i'm sure a and c is right.. just unsure about b

sorry for the long post, thanks !

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - 1. Ca(OH)2(aq) + H3PO4(aq) Ca3(PO4)2(aq) + H2O(l) a. If you have ...
Chemistry - Wow, ok, that helps a LOT!! I guess you can't very easily balance an...
chem - Consider the following neutralisation reaction: 2 H3PO4(aq) + 3 Ca(OH)2 (...
Chemistry - 1. Ca(OH)2 + H3PO4 ---> H2O + Ca3(PO4)2 (A) How many moles of ...
Chemistry - Balance the following chemical equation. __Fe(OH)2 (s) + __H3PO4 (aq...
Chemistry - Calcium carbonate reacts with phosphoric acid to produce calcium ...
chemistry - Calcium carbonate reacts with phosphoric acid to produce calcium ...
Chemistry - Phosphoric acid reacts with magnesium hydroxide to produce magnesium...
CHM - Need help please Which of the following equations has the coefficients 2,1...
chemistry - Phosphorus pentachloride, PCl5, reacts with water to form phosphoric...

Search
Members