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Calculate the formate ion concentration and pH of a solution thatis 0.050M in formic acid (HCHO2; Ka=1.8*10^-4) and 0.10M inHNO3
Since there are that many Moles of KOH there must be equal moles of the acid. So 4.14*10-3moles/.05L= X M of initial acid== .0828M?
Consider the reaction CaCN2 + 3 H2 O → CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced?
A 5.325g sample of methyl benzoate, a compound found in perfumes, was found to contain 3.758g of carbon, 0.316g of hydrogen, and 1.1251g of oxygen.
If the presure of 50.0 mL of oxygen gas at 100oC increases from 735 mm Hg to 925 mm Hg, what is the final volume? Assume the temperature remains constant.
Given a pure preparation of these algae, and the required supplies and equipment, devise and outline an empirical procedure for purifying Enzyme X.
Calculate the rms veloctiy of each gas at this temperature. b) Calculate the average kinetic energy per mole and per molecule for each gas.
Which of the following set of quantum numbers (ordered n, l, ml, me ) are possible for an electron in an atom
Suppose that the molar concentrations for CO and H2 at equilibrium are [CO] = 0.05 and H2= 0.08 . Use the formula CH3OH= Kc[CO][H2]^2 to calculate the concentration of CH3OH.
The rate constant increases by a factor of 2.00 when the temperature is increased from 80 C to 115 C. estimate the arrhenius activation energy.
The equation for the combustion of gaseous methanol is: 2CH3OH(g) + 3O2(g) ? 2CO2(g) + 4H2O(g) Estimate the ?H°rxn per mole of methanol combusted, using the bond energy data provided below
Toluene (C6H5CH3) is a liquid compound similar to benzene (C6H6). Calculate the mole fraction of toluene in the solution that contains 138 g toluene and 106 g benzene.
One cup is equivalent to 237. mL. If 1 cup of oil has a mass of 210. g, what is the density of the oil (in grams per cubic centimeter)?
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