# Chemical equation help

Asked Mar 29, 2012, 01:53 AM —
Hello, my friend and i are having a bit of trouble with a couple of equations. If someone could figure it out and show it we'd appreciate it(im SURE it'll be simple in another week, this chemistry turns my brain inside out)
The first part involves converting copper(ii) chloride to copper(ii) hydroxide by adding NaOH, which needs to be in excess

1) Calculate the number of moles of CuCl2.2H2O in 0.16g of copper(ii) chloride.

(i got 9.385 * 10-4)?

2) This is where we get lost-Determine the number of moles of OH- required to completely convert the Cu2 in CuCl2.2H2o determined above to Cu(OH)2

3) What volume of 5M NaOH will give this amount (no. of moles) of NaOH?

4) is the Naoh added in excess?

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