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The density of 3M solution of NaCl is 1.25g/ml.Calculate molarity.?
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The density of 3M solution of NaCl is 1.25g/ml.Calculate molarity.?
Formula to Calculate Molarity (M)
Molarity is the concentration of a solution, which is defined as the number of moles of solute per liter of solution. The formula to calculate molarity is:
M = moles of solute / volume of solution in liters
Calculate Moles of NaCl
To calculate the moles of NaCl, we need to know its molecular weight. The molecular weight of NaCl is 58.44 g/mol. Therefore, the moles of NaCl can be calculated as:
moles of NaCl = mass of NaCl / molecular weight of NaCl
moles of NaCl = 3M x 1.25 g/ml / 58.44 g/mol
moles of NaCl = 0.064 mol
Calculate Volume of Solution in Liters
The volume of the solution can be calculated using the following formula:
volume of solution = mass of solution / density of solution
mass of solution = 3M x 1000 ml = 3000 g
volume of solution = 3000 g / 1.25 g/ml = 2400 ml = 2.4 L
Calculate Molarity
Now that we have calculated the moles of NaCl and the volume of the solution, we can calculate the molarity using the formula:
M = moles of solute / volume of solution in liters
M = 0.064 mol / 2.4 L = 0.027 M
Final Answer
The molarity of the 3M solution of NaCl is 0.027 M.
Community Answer
The density of 3M solution of NaCl is 1.25g/ml.Calculate molarity.?
Molarity =3M
Molar mass is NaCl =58.5
Density =3×58.5=175.5
IL=1000
1.25 ×1,000 =1250
Mass of solution =1250-175.5=1074.5g
1g=1000kg
1074.5÷1000=1.0745kg
Molarity = No. of moles of solute÷mass of solvents in kg
3mol÷1074.5kg =2.79m
Molar mass is NaCl =58.5
Density =3×58.5=175.5
IL=1000
1.25 ×1,000 =1250
Mass of solution =1250-175.5=1074.5g
1g=1000kg
1074.5÷1000=1.0745kg
Molarity = No. of moles of solute÷mass of solvents in kg
3mol÷1074.5kg =2.79m
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The density of 3M solution of NaCl is 1.25g/ml.Calculate molarity.?
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The density of 3M solution of NaCl is 1.25g/ml.Calculate molarity.? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about The density of 3M solution of NaCl is 1.25g/ml.Calculate molarity.? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The density of 3M solution of NaCl is 1.25g/ml.Calculate molarity.?.
The density of 3M solution of NaCl is 1.25g/ml.Calculate molarity.? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about The density of 3M solution of NaCl is 1.25g/ml.Calculate molarity.? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The density of 3M solution of NaCl is 1.25g/ml.Calculate molarity.?.
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