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A 10.0-L balloon contains helium gas pressure of655mmHg. What is the new pressure of helium gas at each of the following volumes if there is no change in temperature? a) 1.00L b)2500mL c)750.mL How do you work the problems out?
A chemistry student prepares acetone by decomposing 12.3 g of calcium acetate. If the student collected 2.50 g of acetone and the theoretical yield is 3.42 g.
one of the standard solutions had an abnormally low absorbace reading, causing a less positive slop for the data plot. a. Will the equilibrium concrentration of feNCS2+ in the test tube be too high or too low?
why do firefighters recommend the use of a deluging volume of water when extinguishing an oxidizer-supported fire? what
Provide the following information for a titration analysis involving a titrant and titrand, where the titrand is a weak, diprotic acid (Ka1 = 1.00 x 10-4; Ka2 = 1.00 x 10-8; Vol=0.01000 L; FH2A=0.1000 M) and the titrant is a strong monoprotic base..
How much heat is needed to raise the temperature of 81.0 g of water from 34 degrees celsius to 9.0x10^1 degrees celsius
Since the freezing point of a solution depends on the number of particles, what would you expect the freezing point of 0.1 m solutions of aqueous NaCL and BaCl2?
Iron has a reported average atomic mass of 55.85 amu. If iron has two isotopes, one of which has 29 neutrons and an isotopic abundance of 57.50%, what is the mass of the other isotope?
When the equation below is properly balanced, the correct sequence of coefficients is? NaCl(s) + SO2(g) + H2O(l) + O2(g) NaSO4(s) + HCl(g)
The heat of vaporization of water is 44.0 {rm kJ/mol}. Calculate the quantity of energy released when enough water vapor condenses to form 0.42 inches of rain over an area of one square mile.
The net reaction is C6H1206(s) -> 2 C2H50H(l) + 2 C02(g) Calculate the mass of glucose required to produce 1.00 L of CO2 measured at P = 1.00 atm and T = 300. K.
Rubidium has two stable isotopes, 85Rb and 87Rb. The 87Rb isotope has a natural abundance of 27.83% and an atomic mass of 86.909183 amu. Calculate the percent abundance and atomic mass of the 85Rb isotope.
If 2.50 g CuSO4 are dissolved in 8.0 x 10^2 mL of 0.25 M NH3, what are the concentrations of Cu2+, Cu(NH3)4^2+, and NH3 at equilibrium
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