Convert the 200 mol of water to kilograms of water.
.6 m
10/200
convert the .2 kg of NaCl to moles of NaCl.
Molality(m)= moles of solute divided by kilograms(kg) of solvent you need to find the moles of NaCl by using a conversion factor 70g NaCl = 1mol divided by 58.44g NaCl =1.20mol then you need to convert 300g of water which is the solvent to kilograms by moving the decimal over 3 units to the left which makes .300 kg of solvent Molality= 1.20mol divided by .300kg Molality=4.00
0.630 g NaCl x (1 mol NaCl/58.44 g NaCl) = 0.0108 mol NaCl525 g H2O x (1 kg/1000g) = 0.525 kg H2O0.0108 mol NaCl/0.525 kg H2O = 0.0206 molality
2mol/kg
Convert the 200 mol of water to kilograms of NaCl
Convert the 200 mol of water to kilograms of water.
Convert the 200 mol of water to kilograms 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.
58,49 g NaCl---------------------1 N10 g---------------------------------xx= 10/58,49=0,171 N58,49 is the molar mass of NaCl (for the foemula unit).Molality= 0,171/2=0,085
The concentration of NaCl is 263 g/L
convert the .2 kg of NaCl to moles of NaCl.
Molality(m)= moles of solute divided by kilograms(kg) of solvent you need to find the moles of NaCl by using a conversion factor 70g NaCl = 1mol divided by 58.44g NaCl =1.20mol then you need to convert 300g of water which is the solvent to kilograms by moving the decimal over 3 units to the left which makes .300 kg of solvent Molality= 1.20mol divided by .300kg Molality=4.00
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.
0.630 g NaCl x (1 mol NaCl/58.44 g NaCl) = 0.0108 mol NaCl525 g H2O x (1 kg/1000g) = 0.525 kg H2O0.0108 mol NaCl/0.525 kg H2O = 0.0206 molality
2mol/kg
The answer is 0,505.
Convert the 200 mol of water to kilograms of NaCl