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A sample of gas initially has a volume of 859 mL at 565 K and 2.20 atm. What pressure will the sample have if the volume changes to 268 mL while the temperature is increased to 815 K?
A titration required 18.38 mL of 0.1574 M NaOH solution. How many moles of NaOH were in this volume?
a solution of cyclohexane and an unknown solute freezes at 3.3c and 1atm of pressure. calculate the freezing point depresson of the solution
effuse through a membrane. How long would it take the same number of moles of Ar(g) to effuse through the same membrane?
Determine mass of water is contained in 2.8 Litres of the vapor in this solution at 55 degree celcius temperature express your answer in grams
What weight of potassium formate should be added to make 900 mL of a pH 4.00 buffer solution
A chemist dissolves 0.9 g of an unknown monoprotic (one acidic H) acid in water. She finds that 14.6 mL of 0.426 M NaOH are required to neutralize the acid.
If oxygen gas were collected over water at 22 C and the total pressure of the wet gas were 650 mm Hg, what would be the partial pressure of the oxygen?
Calculate the mass of propylene glycol that must be added to 0.360 of water to reduce the vapor pressure by 2.88 torr at 40°C (Pressure of H2O is 55.3 torr at 40°C ).
When the band relaxes, the chains return to a tangled state. what happens to the entropy of the band when a stretched band relaxes
suppose .853L of H2 is collected at 15 degrees celcius and 782 mmHg. how much electricity in coulombs must have passed through the solution
what is the intermediate of the photochemical isomerization of (E,E)-2,4-hexadiene to (Z,E)-2,4-hexadiene ? Draw the structure of this nternediate
Given the values of ΔH ° rxn , ΔS ° rxn , and T below, determine ΔS univ. ΔH ° rxn = 80kJ , ΔS rxn = 143J/K , T= 299K Express your answer using two significant figures.
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