A student adds
Interpretation:
The mass of copper
Concept introduction:
The molarity of a solution is defined as the number of mole of solute dissolved in one liter of the solution. The formula for molarity is given by the expression as shown below.
The relation between number of moles and mass of a substance is given by the expression as shown below.
Answer to Problem 146E
The mass of copper
Explanation of Solution
The molarity sodium hydroxide solution is
The volume of sodium hydroxide solution is
The conversion of volume in
The molarity copper
The volume of copper
The conversion of volume in
The molar mass of copper
The molarity of a solution is given by the expression as shown below.
Where,
•
•
Rearrange the above equation for the value of
Substitute the values of molarity and volume of sodium hydroxide solution in above expression.
The number of moles of sodium hydroxide present in solution is
Substitute the values of molarity and volume of copper
The number of moles of copper
The reaction between sodium hydroxide and copper
Two moles of sodium hydroxide reacts with one mole of copper
Two moles of sodium hydroxide produced one mole of copper
Where,
•
•
Substitute the value of
The relation between number of moles and mass of a substance is given by the expression as shown below.
Where,
•
•
Substitute the value of number of moles and molar mass of copper
Therefore, the mass of copper
The mass of copper
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Chapter 16 Solutions
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