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Calculate the minimum volume of distilled water, in liters, necessary to completely dissolve a 7.5 g sample of AgBr (s) at 298K. The molar mass of AgBr is 188 g mol.
Estimate the approximate concentration of a typical enzyme and the number of the enzyme molecules inside each cell? Make any reasonable assumption that will help you calculate the numbers
what is the actual amount of magnesium oxide produced when excess carbon dioxide reacts with 42.8 grams of magnesium metal?
What are the spectator ions in the solution after the complete neutralization reaction occurs when mixing the weak acid H2CO3 (aq) and the strong base NaOH (aq)?
Calculate the volume of concentrated sulfuric acid, containing 98% H2SO4 by mass, that would contain 40.0 g of pure H2SO4.
if a .512g sample of sodium carbonate requires 25.3 mL of a sulfuric acid solution to reach the end point for the reaction, what is the molarity of the sulfuric acid.
For each of the following reactions, identify which reactant is the Lewis acid. Select 1 if the first listed reactant is the Lewis acid or 2 if the second listed reactant is the Lewis acid
What volume of hydrogen gas, in liters, is produced by the reaction of 4.71g of iron metal with 60.0mL of 2.03 M HCl?
Calculate the molarity (M) of a solution prepared by dissolving 1.00g of ethanol (C2H6O) in enough water to give a final volume of 101 mL.
The mass of a beaker is 123.2537 g. After carrots were added to the beaker, its mass is 128.2671 g. The sample was then placed in the oven to remove water.
If 500 g of KCIO3, decomposes and produces 303 g of KCl, how many grams of O2 are produced?
How many vinylic hydrogens are there in 1-ethylcyclohexene? A. one B. two C. three D. four
How many grams of Na2SO4 are there in 15 mL of 0.50 M Na2SO4? (b) How many milliliters of 0.50 M Na2SO4 solution are needed to provide 0.038 mol of this salt?
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