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What is the molality of ammonia in a solution containing 0.85 gram of NH3 in hundred centimetre cube of a liquid of density 0.85 gram per centimetre cube?
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What is the molality of ammonia in a solution containing 0.85 gram of ...
Explanation:
Molality is defined as the number of moles of solute present in 1000 grams (1 kg) of solvent. It is denoted by m.
Given:
Mass of NH3 = 0.85 g
Volume of liquid = 100 cm3
Density of liquid = 0.85 g/cm3
Solution:
First, we need to calculate the number of moles of NH3 present in the given mass.
Molar mass of NH3 = 14 + 3 = 17 g/mol
Number of moles of NH3 = Mass of NH3 / Molar mass of NH3
= 0.85 g / 17 g/mol
= 0.05 mol
Now, we need to calculate the mass of the solvent in the given volume.
Mass of liquid = Volume of liquid x Density of liquid
= 100 cm3 x 0.85 g/cm3
= 85 g
Finally, we can calculate the molality of the solution using the formula:
Molality (m) = Number of moles of solute / Mass of solvent (in kg)
= 0.05 mol / 0.085 kg
= 0.59 mol/kg
Therefore, the molality of ammonia in the given solution is 0.59 mol/kg.
Answer:
The molality of ammonia in the given solution is 0.59 mol/kg.
Molality is defined as the number of moles of solute present in 1000 grams (1 kg) of solvent. It is denoted by m.
Given:
Mass of NH3 = 0.85 g
Volume of liquid = 100 cm3
Density of liquid = 0.85 g/cm3
Solution:
First, we need to calculate the number of moles of NH3 present in the given mass.
Molar mass of NH3 = 14 + 3 = 17 g/mol
Number of moles of NH3 = Mass of NH3 / Molar mass of NH3
= 0.85 g / 17 g/mol
= 0.05 mol
Now, we need to calculate the mass of the solvent in the given volume.
Mass of liquid = Volume of liquid x Density of liquid
= 100 cm3 x 0.85 g/cm3
= 85 g
Finally, we can calculate the molality of the solution using the formula:
Molality (m) = Number of moles of solute / Mass of solvent (in kg)
= 0.05 mol / 0.085 kg
= 0.59 mol/kg
Therefore, the molality of ammonia in the given solution is 0.59 mol/kg.
Answer:
The molality of ammonia in the given solution is 0.59 mol/kg.
Community Answer
What is the molality of ammonia in a solution containing 0.85 gram of ...
M=moles/kg=0.85÷17/0.85*100*10^-3=10/17=0.58
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What is the molality of ammonia in a solution containing 0.85 gram of NH3 in hundred centimetre cube of a liquid of density 0.85 gram per centimetre cube?
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What is the molality of ammonia in a solution containing 0.85 gram of NH3 in hundred centimetre cube of a liquid of density 0.85 gram per centimetre cube? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about What is the molality of ammonia in a solution containing 0.85 gram of NH3 in hundred centimetre cube of a liquid of density 0.85 gram per centimetre cube? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the molality of ammonia in a solution containing 0.85 gram of NH3 in hundred centimetre cube of a liquid of density 0.85 gram per centimetre cube?.
What is the molality of ammonia in a solution containing 0.85 gram of NH3 in hundred centimetre cube of a liquid of density 0.85 gram per centimetre cube? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about What is the molality of ammonia in a solution containing 0.85 gram of NH3 in hundred centimetre cube of a liquid of density 0.85 gram per centimetre cube? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the molality of ammonia in a solution containing 0.85 gram of NH3 in hundred centimetre cube of a liquid of density 0.85 gram per centimetre cube?.
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