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If the density of ocean water at a depth of 1.00 x 104 m is 1.071 g/mL and if 21.0 g of water at that depth contains 182mg of potassium chloride, what is the molarity of potassium chloride in the sample?
The complete combustion of pentane yields carbon dioxide and water. When the equation C5H12(l) + O2(g) ? CO2(g) + H2O(l) is balanced, the ratio of the coefficient of CO2 to the coefficient of O2 is
Adipic acid, HOOC(CH2)4COOH, is among the top 50 manufactured chemicals in the United States (nearly 1 million metric tons annually). Its chief use is in the manufacture of nylon. It is a diprotic acid having Ka1=3.9×10?5 and Ka2=3.9×10?6.
Suppose we start with 0.0530 mol of N2O5 in a volume of 5.2 L. How many minutes will it take for the quantity of N2O5 to drop to 0.0253 mol?
Acetic acid is a weak monoprotic acid. it is the active ingredient in vinegar. if the initial concentration of acetic acid is .200 M and the equilibrium concentration of h3o+ is .0019 M, calculate Ka for acetic acid.
Define they hydrogen atom is not actually electronegative enough to form bonds to xenon. Explain were the xenon-hydrogen bond to exist, Define what would be the structure of XeH4
State A 130.0 mL sample of a solution that is 2.9×10-3 M in AgNO3 is mixed with a 220.0 mL sample of a solution that is 0.10 M in NaCN. Subsequent to the solution reaches equilibrium, Explain what concentration of Ag+(aq) remains
If a current of 2.00 ampere is passed for 48 hours, what mass of aluminum id deposited at the electrode? Assume 100% current efficiency.
Calculate the internal energy and ethalpy change if the volume is changed from 10L/Mmol to 20L/mol and the temperature is changed from 300k too 600k. Use the vander waals equatino and assume that no phase changes ocurr
what mass of silver chloride can be prepared by the reaction of 130.0 ml of 0.15 m silver nitrate with 190.0 ml of 0.30
The kidneys function to eliminate ammonia from the blood. Based on the pK value, what is the molecular form that predominates in the blood? Could this molecule easily diffuse through th ehydrophobic lipid membrane of a kidney cell? Explain.
Calculate the pH of a buffer containing 0.030 M HC2H3O2 and 0.050 M NaC2H3O2. The Ka of HC2H3O2 is 1.75 x 10^-5
Calculate the molarity of the solution when 5.396 g of sodium chloride are added to water in order to make a 2.00 L solution. The molarity of NaCl in the solution
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