Question

A 32mL solution of 2.7M NaCL is mixed with 83mL of 1.8M HCL. What is the molaritt of the CL in the new solution.
Thank you for your help

Answer 1

calculate the percent my mass of zinc in the post-1982 penny using the following information: total mass of each penny is 2.500g, density of copper is 8.96g/ml, density of zinc is 7.14g/ml and the mass of a penny if it were 100% copper would be 3.11g

Answer 2

mols Cl in HCl = M x L = ?
mols Cl in NaCl = M x L = ?
Add mols to obtain total mols Cl.
Add L to obtain total volume.
M Cl = total mols/total L = ?

Answer 3

Calculate the resulting molarrity when 150ml of 0.450m Nacl solution is mixed with 100ml of 2.50m Nacl solution?