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Why does CH3-CH2-O-H have a higher boiling point than CH3- O-CH3 even though they have the same molar mass? Use complete sentences to explain this observation.
Determine what is the total mass of glucose in 5.10L of blood If a person has a glucos level of 108 mg.100mL, ? express your answer in grams?
Water is added to 25.0 ml of .716 MKNO3 solution until the volume of the solution is exactly 500 ml. What is the concentration of the final solution?
a graduate cylinder contains water of 155 ml . a piece of iron of 15.0 g and density 7.86 cm3 and a piece of lead of
If 1.02 g KHP (molar mass = 204.2 g/mol) is titrated with 28.34 mL of NaOH, what is the concentration of NaOH?
calculate the smallest increment of energy that an object can absorb from yellow light whose wave length is
Nitrogen dioxide (NO2) cannot be contained in a pure form in the gas phase because it exists as mixture of NO2 and N2O4. At 25°C and 0.98 atm, the density of this gas mixture is 2.4 g/L. What is the partial pressure of each gas
Assuming all gases are at the same pressure and temperature, how many liters of CO2 are formed from 15.0L of CO.
Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 C?
What is the pH of a solution that results from adding 150.0 mL of 0.200 M HCl to 150.0 mL of 0.350 M NH3? (Kb of NH3 = 1.8 x 10^-5)
what mass of oxygen gas measured at 238 k and 3.51 atm is required in order to release 6670 kj of heat to the
Electrolytes and Molarity, Iii)salt is added to 81.4 g of water? iv) Identify the electrolytes and the non-electrolytes among the following compounds
A 100.0-g sample of copper is heated from 10.0°C to 100.0°C. a) Determine the number of calories needed. (The specific heat of copper is 0.0921 cal/goC).
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