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To make a solution, 40 g of a nonelectrolyte is dissolved into 300 g of water. The freezing point depression of the solution is measured to be -7°C. Calculate the molar mass of the solute.
46.03g/mol
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A 40.7g of a non-electrolyte is dissolved in 220g of water to make a solution. The solution's freezing point is -5.53°C. With the given data, what is the molar mass of the solute?
Molar Mass of H2O = 18.0153= 220/18.0153 = 12.212molesMolality = 12.212/-5.53= -2.21 × 40.7= 89.88g/mol
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Calculate the molar depression constant of the freezing point solute is 6.8 and that of solution is total of solute and the solution molarity is 20units
Molar depression constant3.86
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What is the mass fraction and volume fraction of an aqueous solution having 0.7304 Mol Fraction, 0.6268 Specific Gravity of solute and 42.00 Molar Weight of solute?
Molar mass of solvent = 42/ 0.6268= 66.8789Total mass= 66.8789 + 42= 108.8789Mass fraction= 42/108.8789= 0.3857Volume fraction = 0.3857/ 0.7304=0.528
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Compound <i>X</i> has a molar mass of 135.12·gmol−1 and the following composition: element/mass carbon: 44.44% hydrogen: 3.73% oxygen: 51.83% Write the molecular formula of <i>X</i>
v(C)=135/44.44=3molv(H)=135/3.73=36molv(O)=135/51.83=3molC3H36O3
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. a). Find the mass of nonelectrolyte solute dissolved in 315 g water with boiling point temperature of 100.45 ⁰C. The molar mass of solute is 46 g/mole Kb = 0.52 ⁰C/m and Tb = 100 ⁰C
100.45×315/100×0.52= 608.5g
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An aqueous solution contains 3.00% phenylalanine (C9H11NO2) by mass. Assume the phenylalanine is non-ionic and nonvolatile. What is the freezing point of the solution in degrees Celsius
Anyway, the decrease in the freezing point of a solution is directly proportional to the molality of the solute: ΔTf = Kfm Kf is 1.86 °C/m for aqueous solution. If the concentration of phenylalanine is in...
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An aqueous solution has 18% of solute. By chemical analysis, it was known that it has 10 mol% solute.
What is the molecular weight of the solute?
m = n*M, m - weight, n - quantity of substance, M - molecular weight mx /18 = mH2O / 82nx = nH2O / 9nx *Mx = nH2O * MH2O*18/82Mx...
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A solution contains a solute with molar mass 94.5 g/mol. The solution is
1.77 m and also 1.70 M. Calculate the density of the solution.
c - molarity = 1.70 M b - molality = 1.77 m M - molar mass = 94.5 g/mol d - density - g/mL c = n(solute) / V(solution) n(solute)...
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A plant cell with 5% solute and 95% water is placed into a solution of 10% solute and 90% water. The solution is _____ then, water will move _____.
The solution is hypertonic then, water will move out of the cell.
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