What is molarity of a solution that contains vitamins b1
What is the molarity of a solution that contains 35.0 g of vitamin B1 hydrochloride (molar mass = 337 g/mol ) in 110 g of solution?
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What is the concentration of Cl in a solution obtained by mixing 210 ml of 0.620 M KCl and 640 ml of 0.350M
When the bag was removed, the ice had melted and the liquid water had a temperature of 17.0 deg C. How many kilojoules of heat were absorbed?
The pKa's of benzoic acid and 4-nitroanilinium hydrochloride are 4.2 and 1.0, respectively. a.) Determine the Keq for the reaction of benzoic acid with 4-nitroaniline.
Why was the titration performed by the addition of permanganate solution to oxalate solution and not the other way around? Why was the experiment performed at an elevated temperature?
What maximum mass of sulfur, in kilograms, could be produced by the reaction of 1.3 × 104 m3 of SO2(g) with 2.5 × 104 m3 of H2S(g), both at STP?
Sulphur dioxide (SO2) is an unwelcome result of burning soft coal in power plants. Some of the SO2 ends up as sulfuric acid in acid precipitation. The net reaction is 2 SO2(g) + O2(g) + 2H2O(liquid) -! 2H2SO4(liquid)
All substances are gases. What is the equilibrium concentration of nitrogen when 0.341 M of NO are placed in a flask and allowed to equilibrate? The equilibrium constant of the reaction is 6.53
A first order reaction has a half-life of 1.34 x 10^-3 hours. If the initial concentration of the reactant is 8.00M, what is its concentration after 4 half-lives?
A 20.0-rnL portion of pineapple juice was placed in a flask with 20 mL of 0.5M H2S04, Then 2 g of potassium iodide and 20.17 mL of 0.02001M potassium iodate were added to the sample. Titration with sodium thiosulfate required the use of 18.94mL of
An acetic acid/acetate buffer system would be the best choice for experiments at pH = 5.00. What mass of sodium acetate trihydrate (NaCH3CO2•3H2O) and what volume of 6.00 M acetic acid stock solution should be used to prepare 1.50 L of a pH =
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