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A 1-L flask is filled with 1.30g of argon at 25C . A sample of ethane vapor is added to the same flask until the total pressure is 1.00 atm. What is the pressure of argon Par in the flask? What is the partial pressure of ethane, Pethane, in the flask?
The solid and toluene together weigh 58.82g . The density of toluene at the temperature of the experiment is 0.864 g/mL. What is the density of the solid
A 20.0 mL sample of 0.150 M KOH is titrated with 0.125 M HClO4 solution. Calculate the pH after the following volumes of acid have been added.
NaOH was added. Assuming no volume change, calculate the pH of the solution
In a test tube, 10 mL of 0.100 M KI and 10 mL of 0.100 M Na2CO3 are mixed. Next, 0.10 M lead nitrate is added drop wise. What will be the concentration of CO3 2- when PbI2 first starts to precipitate? Ksp (PbCO3) = 1.5 x 10^-13 Ksp (PbI2) = 8.7 x 1..
An equilibrium mixture at 225 degrees C contains .14 M NH3 and .18 M H2 for the reaction 3H2(g)+N2(g) 2NH3(g). if the Kc at this temperature is 1.7 X 10^2 what is [N2]
a sample of N2O3(g) has a pressure of 0.019atm. the temperature(in K) is then double and the N2O3 undergoes complete decompositopn to NO2(g) and NO(g).
Draw the molecule by placing atoms on the grid and connecting them with bonds. If there is more than one answer, draw all o
Determine whether sodium monohydrogen phosphate (Na2HPO4) is neutral, basic, or acidic. First, what is its Ka when it acts as an acid? Second, what is its Kb when it acts as a base?
Given a solid mixture of sodium chloride and barium chloride, suggest a method to quantitatively determine the percentage of barium chloride in the mixture
What is the number of chlorine atoms are in 5.0 g chloral hydrate?
To prepare a fertilizer, an engineer dilutes a stock solution of sulfuric acid by adding 20.9 L of 6.50 M acid to enough water to make 500. L.
so3 can be produced in the following two-step processfes2 o2 ---gt fe2o3 so2s02 o2 ----gt so3assuming that all the
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