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What is the formula mass of calcium citrate
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Chemistry
- Gypsum is hydrated calcium sulfate. A 4.89-g sample of this hydrate was heated. After the water was removed, 3.87 g anhydrous calcium sulfate remained. Determine the formula for this hydrate and name the compound.arrow_forwardA compound NiX3 is 19.67% (by mass) nickel. What is the molar mass of the compound? What is the name of the compound?arrow_forward3.43 Calculate the molar mass of the following compounds. (a) magnesium phosphate, (b) sodium sulfide, (c) dinitro- gen tetroxidearrow_forward
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- You have a pure sample of the antiseptic aminacrine, C13H10N2. Calculate the mass in grams of 0.06500 mol aminacrine. Calculate the number of aminacrine molecules in a 0.2480-g sample. Calculate the number of nitrogen atoms in this 0.2480-g sample. Calculate the mass of N in 100. g aminacrine.arrow_forwardCalculate the mass percent of each element in the following compounds: (a) PbS, lead(I1) sulfide, galena (b) C3H8, propane (c) C10H14O, carvone, found in caraway seed oilarrow_forwardThe compound 1-propanethiol, which is the eye irritant released when fresh onions are chopped up, has the chemical formula C3HyS and a formula mass of 76.18 amu. What number does y stand for in the chemical formula of the compound?arrow_forward
- 2.38 The molecular formula for the ethylene monomer is C2H4. What is its empirical formula?arrow_forward2.37 Why are empirical formulas preferred for describing polymer molecules?arrow_forward3.39 Calculate the molar mass of each of the following com- pounds. (a) Fe2O3, iron(III) oxide, (b) BCl3, boron trichlo- ride, (c)C6H8O6 ascorbic acid (vitamin C).arrow_forward
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