A compound is known to be a potassium halide, KX. Ir 6.00 g of the salt...
A compound is known to be a lithium halide, LiX. If 5.00 g of the salt is dissolved in exactly 100.0 g of water, the solution freezes at -1.39°C. What is the chemical formula for the salt?
A) The vapor pressure of an aqueous solution of potassium bromide at 31 °C is 0.04173 atm. The vapor pressure of pure water at the same temperature is 0.04434 atm. Estimate the freezing point of the solution. For water, Kfp = 1.86 °C/m. Answer:_____ °C B) Complete combustion of 3.769 g of a compound of carbon, hydrogen, and oxygen yielded 8.120 g CO2 and 3.325 g H2O. When 13.90 g of the compound was dissolved in 253 g of water,...
Complete combustion of 4.251 g of a compound of carbon, hydrogen, and oxygen yielded 6.337 g CO2 and 1.946 g H2O. When 20.30 g of the compound was dissolved in 348 g of water, the freezing point of the solution was found to be -0.919 °C. For water, Kfp = 1.86 °C/m. What is the molecular formula of the compound? Enter the elements in the order C, H, O molecular formula =
Complete combustion of 8.293 g of a compound of carbon, hydrogen, and oxygen yielded 21.45 g CO2 and 4.391 g H2O. When 20.50 g of the compound was dissolved in 269 g of water, the freezing point of the solution was found to be -1.04 °C. For water, Kfp = 1.86 °C/m. What is the molecular formula of the compound? Enter the elements in the order C, H, O
A 1.00g sample of an unknown halide of Cu, CuX2 (X is a halide ion), is dissolved in a 25.0 g of water. The freezing point of the solution is found to be -1.00 C. Assuming 100% dissociation of the halide, what is the identity of halogen X? Use a Kf for water of 1.86 C/m.
A 15.3 g sample of a compound known to contain 3 ion species is dissolved in 110 g of water. The boiling point of the solution is 103.0 degrees Celsius. What is the molar mass of the compound? Additional Info: Physical Properties of water Freezing point: 0.00 degrees Celsius Boiling point: 100 degrees Celsius Kf: 1.86 Degrees Celsius/m Kb: 0.512 degrees Celsius/m
0.0800 g of a compound with the empirical formula C2H2N is dissolved in 10.00 g benzene. The resulting solution freezes at 5.24°C. Benzene freezes at 5.48°C and has a freezing point depression constant of K - 4.90"C/m. What is the molecular formula of the compound? CHEN CHONA CH N3 OCHEN O CHAN2
Complete combustion of 3.129 g of a compound of carbon, hydrogen, and oxygen yielded 4.665 g CO2 and 1.433 g H2O. When 15.00 g of the compound was dissolved in 297 g of water, the freezing point of the solution was found to be -0.797 °C. For water, Kfp = 1.86 °C/m. What is the molecular formula of the compound?
When 12.4 g of an organic compound known to be 70.58% C, 5.9% H, and 23.50% O by mass is dissolved in 630.3 g of cyclohexane, the freezing point is 3.58 °C. The normal freezing point of cyclohexane is 6.59 °C. What is the molecular formula for the organic compound? Assume that the organic compound is a molecular solid and does not ionize in water. K values for various solvents are given in the colligative constants table. molecular formula: [C,H,O
When 24.2 g of an organic compound known to be 62.04% C, 10.41% H, and 27.55% O by mass is dissolved in 900.0 g of cyclohexane, the freezing point is 1.78 °C. The normal freezing point of cyclohexane is 6.59 °C. What is the molecular formula for the organic compound? Assume that the organic compound is a molecular solid and does not ionize in water.