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The density of 3 M solution of NaCl is 1.25 g mL-1 Calculate the molality of the solution?
Wiki User
∙ 11y ago
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Wiki User
∙ 11y ago
To calculate the molality of the solution, you first need to find the molar mass of NaCl, which is 58.44 g/mol. Next, calculate the mass of NaCl in 1 L of the solution by multiplying the density (1.25 g/mL) by 1000 mL. Then divide the mass of NaCl by the molar mass to find the number of moles. Finally, divide the moles by the mass of the solvent (in kg) to get the molality. In this case, the molality is approximately 1.30 mol/kg.
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What would you need to do to calculate the molality of 10g of nacl in 2g of water?
To calculate the molality of a solution, you need to know the moles of solute (in this case, NaCl) and the mass of the solvent (water). First, convert the mass of NaCl to moles using its molar mass. Then, calculate the molality using the formula molality = moles of solute / mass of solvent in kg.
What would you need to do to calculate the molality of 0.2kg of nacl in 3kg of water?
To calculate the molality of a solution, you need to know the moles of solute and the mass of the solvent in kilograms. First, calculate the moles of NaCl in 0.2 kg: moles = mass (g) / molar mass. Then, calculate the molality by dividing the moles of solute by the mass of solvent in kg: molality = moles of solute / mass of solvent in kg.
What would you need to do to calculate the molality of 10 g of NaCl in 2kg of water?
To calculate the molality of a solution, you would first convert the mass of NaCl to moles, then divide by the mass of the solvent in kilograms. In this case, you would convert 10 g NaCl to moles, which is 0.17 moles. Then, divide that by the mass of water in kg (2 kg) to get the molality of NaCl in the solution.
What would the final freezing point of water be if 3mol of NaCl were added to 1kg of water?
The freezing point depression constant for water is 1.86°C kg/mol. First, calculate the molality of the solution: 3 mol NaCl / 1 kg H2O = 3 mol/kg. Next, calculate the freezing point depression: ΔTf = iKfm where i is the van't Hoff factor (2 for NaCl), Kf is the freezing point depression constant, and m is the molality. Plugging in the values, the final freezing point would be -11.16°C.
What mass of nacl would have to be dissolved in 1.000kg of water to raise the boiling point by 2.00c?
To calculate the mass of NaCl needed to raise the boiling point of water by 2.00°C, you can use the formula ∆Tb = iKbm, where ∆Tb is the boiling point elevation, i is the van't Hoff factor (2 for NaCl), Kb is the ebullioscopic constant for water, and m is the molality of the solution. You first calculate the molality using the given data and then find the amount of NaCl needed.
What would you need to do to calculate the molality of 10 mol of NaCl in 200 mol of water?
Convert the 200 mol of water to kilograms of water.
What would you need to do to calculate the molality of 10g of nacl in 2g of water?
To calculate the molality of a solution, you need to know the moles of solute (in this case, NaCl) and the mass of the solvent (water). First, convert the mass of NaCl to moles using its molar mass. Then, calculate the molality using the formula molality = moles of solute / mass of solvent in kg.
What would you need to do to calculate molality of 10g of NaCI in 2Kg of water?
To calculate the molality of a solution, you need to divide the moles of the solute (in this case, NaCl) by the mass of the solvent (water) in kilograms. First, convert the mass of NaCl to moles using its molar mass. Then, calculate the molality by dividing the moles of NaCl by the mass of water in kilograms.
What would you need to do to calculate the molality of 0.2kg of nacl in 3kg of water?
To calculate the molality of a solution, you need to know the moles of solute and the mass of the solvent in kilograms. First, calculate the moles of NaCl in 0.2 kg: moles = mass (g) / molar mass. Then, calculate the molality by dividing the moles of solute by the mass of solvent in kg: molality = moles of solute / mass of solvent in kg.
What would you need to do to calculate the molality of 10 g of NaCl in 2kg of water?
To calculate the molality of a solution, you would first convert the mass of NaCl to moles, then divide by the mass of the solvent in kilograms. In this case, you would convert 10 g NaCl to moles, which is 0.17 moles. Then, divide that by the mass of water in kg (2 kg) to get the molality of NaCl in the solution.
A solution of nacl and water has a molality of 4.5m?
The concentration of NaCl is 263 g/L
What would you need to do to calculate the molality of 0.2 kilogram of NaCl in 3 kilogram of water?
convert the .2 kg of NaCl to moles of NaCl.
Compute the boiling point elevation of a salt water solution that contains 3.40 g of NaCl dissolved in 148 ml of water?
The boiling point elevation of a solution can be calculated using the formula: ΔTb = i * Kf * m, where i is the van't Hoff factor, Kf is the cryoscopic constant for water (0.52 °C kg/mol), and m is the molality of the solution. First, calculate the molality of the NaCl solution using the given mass of NaCl and the molecular weight of NaCl to find the molality. Then, use this molality value in the formula along with the van't Hoff factor for NaCl in water (i = 2) to determine the boiling point elevation.
What is the molality of a solution in which 3.0 moles of NaCl is dissolved in 1.5 Kg of water?
The molality of a solution is calculated by dividing the moles of solute by the mass of the solvent in kg. In this case, the moles of NaCl is 3.0 and the mass of water is 1.5 kg. Therefore, the molality of the solution is 2.0 mol/kg.
What are some ways to find density of NaCl which is water soluble?
One way to find the density of NaCl is to dissolve a known mass of NaCl in a known volume of water to make a solution. Then, measure the volume of the solution and calculate the density using the formula: Density = mass of solution / volume of solution. Another way is to look up the density of a standard solution of known concentration.
What would be the molarity of a 5 percent NaCl solution?
To calculate the molarity of a 5% NaCl solution, you need to know the density of the solution. Once you have the density, you can convert the percentage to grams per liter. Then, using the molar mass of NaCl (58.44 g/mol), you can calculate the molarity using the formula Molarity = (mass of solute in g) / (molar mass of solute in g/mol) / (volume of solution in L).
What mass of water is needed to dissolve 292.5g of NaCl to produce 0.25 m aqueous solution?
To calculate the mass of water needed to dissolve 292.5g of NaCl to make a 0.25 molar aqueous solution, you would first calculate the number of moles of NaCl from its mass. Then, using the molarity and the number of moles of NaCl, you can determine the volume of water needed to dissolve it. Given the volume of water, you can then calculate its mass using the density of water.
