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What NaCl concentration results when 294 mL of a 0.750 M NaCl solution is mixed with 637 mL of a 0.430 M NaCl solution

Sagot :

Answer:

0.531 mole/L = 0.531M

Explanation:

What NaCl concentration results when 294 mL of a 0.750 M NaCl solution is mixed with 637 mL of a 0.430 M NaCl solution?

294 ml X 0.75 moles/1000ml=0,294X0.750 = 0.2205 moles

637 ml X 0.430 moles/1000ml = 0.637 X 0.430= 0.2739 moles

0.2205 + 0.2739                        = 0.4944 moles

this is distributed over 294 ml + 637 ml= 931ml

with a concentration of   0.4944 moles/0.931L or 0.531 mole/L = 0.531M

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