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What will 628 mg of Zr (HPO4)2 weighed after ignition to ZrP2O7?
How many moles of oxygen can be burned biologically when 42.26 g of carbon dioxide is produced
calculate the number of moles of sodium oxide that should be produced when 26.50 grams of sodium metal reacts with oxygen gas. show work!
A gas with a pressure of 557 mmHg and a volume of 634 mL is allowed to expand to a volume of 975 mL. What is the resulting pressure in atm?
Determine the percentage yield of Carbon, when 0.5 mole of Sucrose is decomposed and 70.0 g of C was collected during the experiment. Equation: C12H22O11 = 12 C + 11H2O
You add 200.0 mL of 0.10 M KOH to 50.0 mL of 0.40 M HF. What is the pH of the resulting solution? Provide answer with solution.
Solution is prepared by dissolving 50g of NaCl (MM= 58.44g/mol) in 50g of H2O (MM = 18g/mol). The volume of the solution is 63.3 ml. Find mass % of solute, m, M, N of the solution. (M-molarity, m-molality, N-normality)
For a solution of acetic acid (HC2H3O2) to be called vinegar it must contain 5% acetic acid by mass. If the vinegar is made up of only of acetic acid, density of the solution = 1.006g/ml. Find mol fraction of solute and solvent, M, m of the solution.
How many moles of solute should be dissolved into 3.0 L of solvent to make a concentration of 2.0 M? __ . __ mol (fill in the blank)
Calculate the molarity of a solution in which 2.0 mol of solute is dissolved in 8.0 L of solvent. ___ . ___ ___ M fill in the blank
