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How many moles of NaCl are there in 200.0 mL of 1.00 M NaCl solution? How many grams? (Hint: The molar mass of NaCl is 58.44 g/mol)

Sagot :

1) Moles of NaCl in 200.0 mL of solution.

[tex]\text{Molarity (M)=}\frac{\text{moles of solute}}{\text{liters of solution}}[/tex]

Solve for moles

[tex]\text{moles of solute=Molarity}\cdot\text{liters of solution}[/tex]

Convert mL into L.

[tex]L=200.0mL\cdot\frac{1L}{1000mL}=0.200L[/tex]

Plug in know values

[tex]\text{moles of NaCl=1.00 M}\cdot0.200L=0.20molNaCl_{}[/tex]

There are 0.20 moles of NaCl in 200.0 mL of solution.

2) grams of NaCl in 200.0 mL of solution.

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