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Elemental phosphorus reacts with chlorine gas according to the equation: P4 (s)+ 6Cl2 (g) --> 4PCl3 (l) A reaction mixture initially contains 45.11 g P4 and 132.0g Cl2. Once the reaction has occurred as completely as possible, what mass (in g) of the excess reactant is left?
prove the presence of the cations listed : Sn2+ , cd2+, Cu2+, Bi3+. write four paragraphs about these cations a paragraph each?
The solubility of N2 in blood at 37°C and at a partial pressure of 0.80 atm is 5.6 10-4 mol/L. A deep-sea diver breathes compressed air with the partial pressure of N2 equal to 3.6 atm. Assume that the total volume of blood in the body is 5.0 L.
Calculate the weight of KMnO 4 contained in 2 liters of a 0.15N (not M) solution
Buffering Action of Proteins, We did this experiment in class but I want to see if the results seem reasonable and, if so, why they were not more varied.
The volume of a single molecule of water is 2.99 x 10^-23 mL. For a sample of gaseous water at 1.00 atm and 150° C, what fraction of the containers volume is occupied by the molecules themselves
A substance has a molar mass of 60 g/mol with 40.0 percent carbon, 6.7 percent hydrogen, and 53.3 percent oxygen. What is its empirical formula?
For the reaction CO(g) + H2O(g) CO2(g) + H2(g), Kp = 0.64 at 900 K. If the reaction is initiated with just H2(g) and CO2(g), each at a partial pressure of 0.540 atm, what is the partial pressure of CO(g) at equilibrium
A solution is 40.0% by volume benzene (C6H6) in carbon tetrachloride at 20C. The vapor pressure of pure benzene at this temperature is 74.61 mmHg and its density is 0.87865 g/cm3
what will be the pressure of the gasesous water in a 4.25 L flask at 30.0 degrees celcius.
Explain the hybridization of carbon in C2H2 using electron configuration diagrams of the original atoms, excited staes
The initial mass of the the crude ether was 141 mg. The mass after recrystallization was 121 mg. Calculate the percent recovery from recrystallization.
Citric acid is a triprotic acid with pKa1=3.15; pKa2=4.77; pKa3=5.19. Calculate the concentrations of all species in solution.
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