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It took 3.66 min with a current of 2.28 A to plate out all the silver from 0.210 L of a solution containing Ag+. What was the original concentration of Ag+ in the solution?
A student reacts 0.3000 grams of a sulfate-containing unknown with excess barium chloride. If 0.6500 grams of barium sulfate is produced, what is the percentage sulfate in the unknown?
if 2.0 g of helium gas and 5.46 g of oxygen gas are mixed togeher, what is the mole fraction of helium in the solution?
Identifying Food Groups and Calculating Calories, Question: If one slice of chocolate cake contains 35g of carbohydrate, 15g of fat and 5g of protein
Capsaicin, the compound that gives the hot taste to chili peppers, has the formula C18H27NO3. (a) Calculate its molar mass.
Draw the electron-dot formula for each of the following: a) H3COCH3 (the atoms are in the order C O C); b) CS2 (the atoms are in the order S C S); c) CLO2^-; d) SF3^+; e) H2CCHCN (the atoms are in the order C C C).
Determine the empirical formula of each of the following compounds. Type your answer using the format CH4 for CH4 and list the elements in the same order as they are mentioned in the problem.
Determine KM for glucose oxidase. KM = M. B. Determine effect on the maximal rate if the concentration of adenine is 0.001 M. Vmax,I = mmol/min.
determine the mass of snow that can be completely melted.use the table below to work the following
Dry air at 1.0 atm is passed over a high voltage electric discharge (~15,000v) to convert 0.85% O2 to O3. The ozonized air is then euilibrated withwater at 25 degrees celcius in a vessel which contains
Consider two different solutions of the same UV-absorbing compound. Upon UV-analysis, Solution B gave an absorbance of 1.5 and Solution A gave an absorbance of 0. 5 at the same wavelength. Solution B is higher in concentration by what ratio (or per..
Comparing potassium nitrate (KNO3) and sodium chloride (NaCl), which chemical's solubility (in water) is most affected by change in temperature.
If potassium ion is in solution, the ion could be reduced to potassium metal. In acidic solution, which would be more thermodynamically favorable: the reduction of K+ or the reduction of H+
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