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A United Nations toxicologist studying the properties of mustard gas, S(CH2CH2Cl)2, a blistering agent used in warfare, prepares a mixture of 0.675 M SCl2 and 0.973 M C2H4 and allows it to react at room temperature (20.0°C ). SCl2(g) + 2 C2H4(g) S(CH2CH2Cl)2(g) At equilibrium, [S(CH2CH2Cl)2] = 0.350 M. Calculate Kp.
A gasous mixture of O2 and Kr has a density of 1.104 grams per liter at 435 torr and 300 K. What's the mole percent of O2 in the mixture?
Write a chemical equation describing the condensation process for CO2 and a chemical equation describing the freezing
For alloys of two hypothetical metals A and B. Find out composition of phase boundary (or solubility limit) for both and phases at this temperature.
if 76g of Cr2O3 and 27 g of al completely react to form 51 g of Al2O3 how many grams of Cr are formed?
calculate the volume of water needed to dilute the anti-freeze from 0.20M in 0.260 litres to 0.13M.
A graduated cylinder contains 145mL of water. A 10.0g piece of iron (density = 7.86g/cm3 ) and a 22.0g piece of lead are added.
Using a sample of gas has a mass of 38.7mg. Calculate the molar mass if its volume is 228mL at a temperature of 57°C and a pressure of 832torr?
A 14.0-g sample of ice at -18.0°C is mixed with 122.0 g of water at 87.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
A mixture of gases with a pressure of 800.0 mm Hg contains 60% nitrogen and 40% oxygen by volume. What is the partial pressure of oxygen in this mixture?
A 0.12M solution of a weak acid HA has pH = 2.49. What is the Ka of this acid.
how many moles of solute are present in 700ml of 0.230M SrBr2
What mass (in grams) of NH4Cl is needed to prepare 450mL of 0.251 M NH4Cl solution?
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