Creatinine, C4H7N3O, is a by-product of muscle metabolism, and creatinine levels in the body are known to be a fairly reliable indicator of kidney function. The normal level of creatinine in the blood for adults is approximately 1.0 mg per deciliter (dL) of blood. If the density of blood is 1.025 g/mL, calculate the molality of a normal creatinine level in a 30.0-mL blood sample mol/kg Molality What is the osmotic pressure of this solution at 25.0°C? Osmotic pressure atm

The vapor pressure of diethyl ether (ether) is 463.57 mm Hg at 25 °C. A nonvolatile, nonelectrolyte that dissolves in diethyl ether is aspirin.Calculate the vapor pressure of the solution at 25 °C when 10.17 grams of aspirin, C9H8O4 (180.1 g/mol), are dissolved in 151.7 grams of diethyl ether.diethyl ether = CH3CH2OCH2CH3 = 74.12 g/mol.           The vapor pressure of diethyl ether (ether) is 463.57 mm Hg at 25°C.How many grams of estrogen (estradiol), C18H24O2, a nonvolatile, nonelectrolyte (MW = 272.4 g/mol), must be added to 192.1 grams of diethyl ether to reduce the vapor pressure to 452.63 mm Hg ?diethyl ether = CH3CH2OCH2CH3 = 74.12 g/mol.

You have an aqueous solution of Ca(NO3)2 with a molality of 7.26 mol/kg and a density of 1.4963 g/mL.Calculate the molar concentration by volume (mol/L) of this solution.Note: The density of pure water is 1.000 g/mL.

A student dissolves 18. g of biphenyl (C₁2H₁0) in 100. mL of a solvent with a density of 1.04 g/mL. The student notices that the volume of the solvent does not change when the biphenyl dissolves in it. Calculate the molarity and molality of the student's solution. Be sure each of your answer entries has the correct number of significant digits. molarity 1 = molality 0 = x10 0|0

The vapor pressure of diethyl ether (ether) is 463.57 mm Hg at 25 °C. A nonvolatile, nonelectrolyte that dissolves in diethyl ether is aspirin.Calculate the vapor pressure of the solution at 25 °C when 10.17 grams of aspirin, C9H8O4 (180.1 g/mol), are dissolved in 151.7 grams of diethyl ether.diethyl ether = CH3CH2OCH2CH3 = 74.12 g/mol.           The vapor pressure of diethyl ether (ether) is 463.57 mm Hg at 25°C.How many grams of estrogen (estradiol), C18H24O2, a nonvolatile, nonelectrolyte (MW = 272.4 g/mol), must be added to 192.1 grams of diethyl ether to reduce the vapor pressure to 452.63 mm Hg ?diethyl ether = CH3CH2OCH2CH3 = 74.12 g/mol.

A 4.7 x 10^-2 mg sample of a protein is dissolved in water to make 0.25 mL of solution. The osmotic pressure of the solution is 0.56 torr at 25 C. What is the molar mass of the protein?

Answer this: Calculate the molality of 25.0 grams of KBr dissolved in 750.0 mL pure water.

A solution is prepared by dissolving 5.88 g of an unknown nonelectrolyte in enough water to make 0.355 L of solution. The osmotic pressure of the solution is 1.21 atm at 27.0 °C. What is the molar mass of the solute?(R = 0.08206 L⋅atm/mol⋅K)

A certain liquid X has a normal freezing point of −6.30°C and a freezing point depression constant Kf=7.40·°C·kgmol−1. Calculate the freezing point of a solution made of 31.g of benzamide (C7H7NO) dissolved in 800.g of X. Round your answer to 2 significant digits.

An aqueous solution of 1.00 M ammonia (NH3) has a density of 0.900 g/mL. What is its concentration in molality (mol/kg)?