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An 8mL sample of an unknown concentration of NH3 is titrated with HCl. It is found that 12mL of 0.10M HCl is required to reach the equivalence point.
What was the concentration of the NH3 in the initial 8mL sample?
Also what would be the pH be when 6mL of 0.10M Hcl is added to the initial 8mL sample of NH3?
a toxicologist studying mustard gas, S(CH2CH2Cl)2, prepares a mixture of 0.675 M SCl2 and 0.973 M C2H4 and allows it to react at room temperature (20.0 c) at equilibrium S(CH2CH2Cl)2 = .350 M. calculate Kp
A gas sample containing 1.35 mol at 25°C exerts a pressure of 405 torr. Some gas is added to the same container, and the temperature is increased to 50.°C. If the pressure increases to 800. torr, how many moles of gas were added to the container?
You need to understand the factors that determine whether a reaction is under thermodynamic control or kinetic control and be able to predict the corresponding product.
What reagents would you recommend and what mass of each one would you use to match the concentrations of Na+, Cl-, Mg2+, Ca2+ and SO42- given in the table above?
Calculate the equilibrium constant KP if the total pressure is 2.6 atm at that temperature.
Nitrogen reacts with hydrogen according to the following equation.
Calculate the number of grams of NaOH per 100ml to give a pH8.0 solution if pure water at pH7.0 is used in the experiment
A concentrated sulfuric acid solution is 74.0% H2SO4 by mass and has a density of 1.66 g/mL at 20°C. (MW of H2SO4 is 98.0 g/mol.) The molality of the H2SO4 solution is ?
Determine the volume of CO 2 at a temperature twenty two degree Celsius and a pressure of 781 mmHg could be absorbed by 327 grams of Lithium hydroxide LiOH?
A graduated cylinder contains 152 mL of water. A 14.0 g piece of iron (density = 7.86 rm{g/cm^3}) and a 16.0 g piece of lead are added. What is the new water level in the cylinder?
When 50.0 mL of water containing 0.50 mol HCl at 22.5°C is mixed with 50.0mL of water containing 0.50 mol NaOH at 22.5°C in a calorimeter, the temperature of the solution increases.
If 24g Mg is used the percentage yield is 95% how many gramns of magnesium hydroxide should be recovered? Write balanced equation for reaction.
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