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Explain a solution of 2.00g of para-dichlorobenzene (a clothes moth repellant) in 50.0g of cyclohexane freezes at 1.05°C. Explain what is the molar mass of this substance?
In a gas mixture, the partial pressures are nitrogen 430 , oxygen 115 , and helium 235 . What is the total pressure ( ) exerted by the gas mixture?
Which of the following best describes carbon dioxide (CO2) at room temperature and pressure A) polar molecular gas B) nonpolar molecular gas C) covalent network solid D) ionic solid E)metallic solid An explanation of why would be great too
Silver nitrate and sodium phosphate are reacted in equal amounts of 200. g each. How many grams of silver phosphate are produced?
A reaction has a standard free-energy change of -14.00 kJ mol-1 (-3.346 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C.
dinitrogen pentoxide undergoes first order decomposition inchloroform solvent to yield nitrogen dioxide and oxygen gas.
Consider the following experimental data set obtained for the density of a metal object as measured by three students in the laboratory: 6.02g/mL, 6.04g/mL, and 6.05g/mL. The actual density of the object is known to be 5.00g/mL. Calculate the abso..
12.0 moles of gas are in a 8.00 L tank at 23.2 C. Calculate the difference in pressure between methane and an ideal gas under these conditions.
calculate the volume that a 0.323 -mol sample of a gas will occupy at 265k and a pressure of 0.900atm
A chemist produces 460 mL of oxygen gas at - 43 °C and constant pressure. To what Celsius temperature must the oxygen be warmed in order for it to have a volume of 600 mL?
A balloon originally has a volume of 4.39L at 44 C and a pressure of.959atm. The balloon must be cooled to what temperature in order to reduce its volume to 3.78 L?
How many minutes is required for sunlight to travel from the Sun to Earth. (Assume the Sun is 93,000,000 miles from Earth and that sunlight travels at 1.86 x 105 miles per second.) how do you work this to solve.
What is the mg antibiotic dose that must be administered to Sam. If the Sam antibiotic is available is liquid solution form of 65.0 mg antibiotic per mL, how many mL of this antibiotic solution must be administered to Sam? Report to tenths of mL.
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