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- Hot perchloric acid is a powerful (and potentially explosive) reagent used to decompose organic materials and dissolve them for chemical analysis. (a) How many grams of perchloric acid, HClO4, are contained in 100.0 g of 70.5 wt% aqueous perchloric acid? (b) How many grams of water are in 100.0 g of solution? (c) How many moles of HClO4 are in 100.0 g of solution?Show your work: a. How many moles is 55 g of NaCl? 0.025 g of NaHCO3? b. How many grams is0.5 moles of NaCl? 2.11 moles of NaHCO3? c. Molarity is defined as the moles of solute in 1 Liter of solution. What is the molarity 0.50 mol Co(NO3)2 in 0.25 L of solution What is the molarity of68 g of NiCl2 in 0.15 L of solutionWine is approximately 12% ethanol (CH3CH2OH) by volume. Ethanol has a molar mass of 46.06 g/mol and a density 0.789 g/mL. How many moles of ethanol are present in a 750-mL bottle of wine?
- How many moles of calcium hydroxide are made from 5.3 moles of water? CaC2 + 2H20 ---> C2H2 + Ca(OH)2The active ingredient of Benadryl© Chesty Forte Cough Liquid is Guaiphenesin an expectorant drug used to assist the expectoration ('bringing up') of phlegm from the airways in acute respiratory tract infections. A 200.0 mL bottle of Benadryl© Chesty Forte Cough contains 4.00 g of Guaiphenesin (C10H14O4). If the recommended dose for an adult is 350 mg of Guaiphenesin. How many moles of Guaiphenesin does this equal? (answer to 2 significant figures)1.) 10g of an imaginary molecule X is dissolved to form a 500 mL solution. Calculate the concentration of the solution (Molarity) if the molecular weight of X is 45g/mol. 2)Calculate the mass percent of C in CH4 (you can use 1 mole of methane as the basis for yourcalculations) 3)An imaginary reaction takes place as below: X + Y2 → X3Y Balance the equation. If 10 moles of X and 10 moles of Y reacts how many moles of X3Y is produced?
- 50 mL of a 0.9 Ca3(PO4)2 solution is added to a beaker. How many moles of Ca3(PO4)2 were added? How many grams oF Ca3(PO4)2 were added?How many grams of NH3 can be produced by mixing 14 g of N2 with 6.0 g of H2? Given: N2 + 3 H2 ------> 2 NH3 a.) 20g b.) 17g c.) 34g d.) 51gA vitamin syrup for infants contains 27.44 mg of zinc sulfate monohydrate (ZnSO4.H2O) and 100.00 mg of ascorbic acid (C6H8O6)for every 5 ml. How many molecules of zinc sulfate monohydrate does a 5 ml of vitamin have?
- Formula for drug Liptor is C33 H35 Fn2 O5 Ph=7 look at the number of Hs assuming that number is the same as in grams calculate m/m% if you dissolve drug in 150 ml of water?35g how many moles of c present in 2.23 moles of the drug how many moles of your drug present in 50.0 grams how many molecules in 50.0 g calculate the H+. OH- and pOHSulfur trioxide dissolves in water, producing H2SO4. How much sulfuric acid can be produced from 12.7 mL of water and 22.3g of SO3? How much reagent excess is left over?An aqueous solution known as Ringer's lactate is administered intravenously to trauma victims suffering from blood loss or severe burns. The solution contains the chloride salts of sodium, potassium, and calcium and is also 5.00 mM in sodium lactate (NaC3H5O3). How many grams of sodium lactate are needed to prepare 12.5 liters of Ringer's lactate? _____ g