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If a solution contain Ag^+ and Pb^2+ ions. The addition of 155.0 mL of 1.50 M NaCl is merely enough to precipitate all the Ag+ and Pb^2+ ions. If the total mass of the precipitate is 32.8g define how many grams of AgCl is the precipitate?
Calculate the quantity of sodium fluoride in kilograms needed per year for a city of 50,000 people if the daily consumption of water per person is 115.0 gallons.
A gas consists of 4.95 grams of oxygen and 4.95 grams of nitrogen and occupies a volume of 1.15 liter at a temperature of 330 K. Find the number of gas molecules.
Assuming Kf= 478Kg/s^2, calculate and compare the fraction of molecules in the first excited vibrational state at 1000K
How long will it take for 75% of nitrogen dioxide to decompose if the initial concentration of nitrogen dioxide is 1.33M
2-bromo-2-methylbutane + H2O. What does that look like when it is drawn? It is an SN1 reaction
Given 6.4 mL of sulfuric acid (98%) calculate the number of mmols. (MW H2SO4: 98.08 g/mol, density: 1.840 g/mL)
compound has been analyzed and found to contain the following masses of elements: Carbon 0.2990g, hydrogen 0.05489g, nitrogen 0.2318g, and oxyen 0.1328g. calculate the tmpirical formula of the compound.
Calculate K for 2NO(g)+O2(g)=2NO2(g) from the observation that when equilibrium is established at 500K, there are 0.190 moles NO2, 2.65x10^-4 moles NO, and 0.606 moles O2 in a volume of 0.759 liters.
Formulas and constants to remember R = 1.98 cal/degree-mole ; Delta G0 = -RT lnKeq. T = 298 degrees K. How much NADH will be produced in the above reaction
what is qvib at a temperature of 3100 K, keeping the zero point energy and referenced to v= 0? What is the vibrational contribution to CV, at the temperature 2600 K?
The reaction is found to be first order each in iodide and hypochlorite ions, and inversely proportional to the concentration of hydroxide ion present in the solution.
DNA is thought to be the chemical compound responsible for the process of heredity. A sample of DNA was found to have density 1.10 g/cm^3 and its molecular weight was estimated to be 3.04 x 10^8 g. What is the average volume occupied by one DNA mo..
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