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The boiling point of acetone is 56 degrees C. If you have some gaseous acetone at 100 degrees C and you cool it down, at what temp. will acetone start to condense?
If 3.20mL of vinegar needs 40.5mL of 0.120M NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.00qt sample of this vinegar?
what is the ratio of weak acid molecules to water molecules in a 0.10 M solution? Determine the answer mathematically.
How many grams of Al are required to completely react with 50.0 g of O2?
A 6.11 g sample of Cu---Zn alloy reacts with excess aqueous HCl producing 1.26 L of H2(g) at 22.0 degrees C and 728 torr. Since only the Zn portion of the alloy reacts, calculate the percent Cu in
A container has a mass of 73.91 g when empty and 91.44 g when filled with water. The density of water is 1.0000 g/cm3. (a) Calculate the volume of the container. (b) When filled with an unknown liqu
Fluorine-18, which has a half-life of 110min, is used in PET scans.If 105mg of fluorine-18 is shipped at 8:00 A.M., how many milligrams of the radioisotope are still active if the sample arrives at
A sample of propane, rm C_3H_8, contains 17.5 moles of carbon atoms. How many total moles of atoms does the sample contain?
How many grams of methane must be combusted to heat 1.30 kg of water from 26.0 C to 93.0C, assuming H2O as a product and 100% efficiency in heat transfer?
An auto mechanic spills 85 mL of 2.6 M H2SO4 solution from a rebuilt auto battery. How many milliliters of 2.5 M NaHCO3 must be poured on te spill to react completely with the sulfuric acid?
The reaction of 7.3 grams of fluorine with excess chlorine produced 4.9 grams of ClF3. What percent yield of ClF3 was obtained?
Determine the solubility of silver oxalate in vinegar. You can consider vinegar to be a 4% solution of acetic acid in water for the purposes of this exercise. Keep in mind that acetate forms complex
What is the total pressure in a canister that contains oxygen gas at a partial pressure of 804 mm Hg, nitrogen at a partial pressure of 220 mm Hg, and hydrogen at a partial pressure of 445 mm Hg?
Calculate the specific enthalpy of helium at this temp. and pressure and the rate at which enthalpy is transported by a stream of helium at 300k and 1atm whose molar flowrate is 250kmol/hr.
A beaker with 165ml of an acetic acid buffer with a pH of 5.00M is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100M . A student adds 7.50ml of a 0.350M H
A beaker with 185ml of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100M . A student adds 5.50ml of a 0.460 M
What mass of iron splints and 95% (by mass) H2SO4 were needed to ensure the complete filling of the balloon? Assume a temperature of 0°C, a pressure of 1.0 atm during filling, and 100% yield.
A 55.0-g piece of metal is heated in boiling water to 99.8 C and then dropped into water in an insulated beaker. There is 225 g of water in the beaker, and its temperature before the metal was added
Suggest a reasonable synthetic strategy for the synthesis of 4-methyl-1-phenyl-1-pentanol from 4-methylpentanoyl chloride, (CH3)2CHCH2CH2COCl.
A solution is prepared by mixing 15.75g of naphthalene, into 200.0g of cyclohexane. Calculate the freezing point.
Solid potassium superoxide, water vapor, and carbon dioxide gas react to form solid potassium bicarbonate and oxygen gas according to the reaction above. This reaction can be utilized in emergency
The Ne atom has 10 times the mass of H2. Which of the following statements are true? I. At 25°C they both have the same kinetic energy.
Calculate the molar concentration of OH - ions in an 1.78 M solution of hypobromite ion (BrO-; Kb = 4.0 10-6).
Calculate the number of moles of rm Cl atoms in 1.81×1024 formula~units of magnesium chloride
The cylinder is filled with a gasoline and air mixture to a total pressure of 1.0 atm and then is compressed to 0.073 L prior to ignition. What pressure must be applied to produce this compression?