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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?
What is the mass of sodium ion circulating in the blood if the concentration of sodium ion in this individual is 0.135M.The average adult has a total blood volume of 5 liter.
Determine the numbers of oxygen molecules are required for each molecule of C 6 H 12 O 6 glucose that is oxidized if Glucose is oxidized by molecular O 2 to CO 2 and H 2 O?
Determine its molecular formula if the molar mass of the compound = 199.55 grams per mole?
Suppose that 180 g of ethanol at 26 ? C is mixed with 225 g of ethanol at 83 ? C at constant atmospheric pressure in a thermally insulated vessel.
You have pure beta-D-glucopyranose of 100 grams nearly, it was dissolved in an ethanol/water combination with the intention to recrystallize the sugar. You get pure beta-D-glucopyranose crystals 60 grams back why this 40% loss was to happen.
Silver has an average atomic mass of 107.87 u. If 48.18% of Ag exists as Ag-109 (108.9047 u), what is the identity and the atomic mass of the other isotope?
A student has prepared a 0.309 M solution of Barium hydroxide and a 0.443M solution of hydrochloric acid for you. Determine the volume of the hydrochloric acid solution will be needed to exactly neutralize 10.0 mL of the Barium chloride solution.
The mass of calcium fluoride that results from the reaction of 3.00 grams of calcium and 2.00 grams of fluorine is 4.02 grams. What is the percent yield?
Determining mechanism of a reaction, 2,3-Dimethyl-2,3-butanediol (pinacol), upon heating in aqueous acid, rearranges to form 3,3-dimethyl-2-butanone (pinacolone)
The reactant concentration in a zero-order reaction was 7.00×10-2 after 105 and 1.50×10-2 after 350 . What is the rate constant for this reaction.
A certain reaction has an activation energy of 70.0 Kj/mol and a frequency factor of A1 = 4.80×1012. A) What is the rate constant, k , of this reaction at 30.0 C
CH4 + 4Cl2 --> CCl4 + 4HCl Using the above reaction, how many moles of HCl can be produced from 1.5 moles of CH4.
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