A student wishes to determine the mass percentage of barium in a 2.016g sample. The student titration the sample with 20mL of 0.20M H2SO4, producing a Basic precipitate. How many moles of BaSO4 were formed in the titration? What was the mass of barium present in the original sample? What was the mass percent of barium in the original sample?

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Q: 250.0 mg of copper(II) sulfate pentahydrate (CuSO4•5H2O, 249.69 g/mol) was dissolved in water to…

A: Since mass of CuSO4•5H2O used = 250 mg = 0.25 g              (since 1 g = 1000 mg) Hence moles of…

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A: Percentage of KHP can be calculated using formula: Percentage of KHP = (mass of KHP / mass of…

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Q: What volume (in mL) of 0.436 mol/L calcium hydroxide, Ca(OH)2(aq), is needed to completely…

A: Answer: the volume of calcium hydroxide [Ca(OH)2] solution needed is 16.31 mL.

Q: A barium hydroxide solution is prepared by dissolving 2.91 g of Ba(OH), in water to make 42.3 mL of…

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Q: A student wishes to determine the mass percentage of barium in a 2.016g sample. The student…

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Q: A student wishes to determine  the mass percentage of barium in a 2.016g  sample. The student…

A: Given : Molarity of H2SO4 = 0.20M Volume of H2SO4 = 20mL

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A: Given: The mass of the vinegar=5.00 g The concentration of NaOH=0.108 M The volume of NaOH=39.1m…

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A: Find mas of vinegar present in 20.05 ml sample of vinegar Density of sample is 1.061 g/mLmass of…

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Q: What is the total mass, in grams, of precipitate that can be produced by mixing 11 g magnesium…

A: Equation for reaction; MgCl2(s)+2AgNO3→Mg(NO3)2+2AgCl

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Q: The calcium in a 300.0 ml sample of natural water was determined by precipitating the cation as…

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Q: Vinegar contains acetic acid (HC2H3O2), which is responsible for its acidity. In one analysis of a…

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Q: Consider the reaction: Ag⁺(aq) + Cl⁻(aq) → AgCl(s) How many grams of NaCl would be needed to…

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Q: molar concentration

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Q: If 30.0 g of NaI (MM = 149.89 g/mol) are added to a 500.0 mL volumetric flask, and water is added to…

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Q: If 20.6 g of Nal (MM = 149.89 g/ mol) are added to a 500.0 mL volumetric flask, and water is added…

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Q: A student wishes to determine the mass percentage  of barium in a 2.016g sample. The student…

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Q: What volume (in mL) of 0.107 mol/L calcium hydroxide, Ca(OH)2(aq), is needed to completely…

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Q: 252 mL of 3.00 M H2SO4(aq) are added to 1.50 L of 0.500 M H2SO4(aq). What is the concentration of…

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Q: A l1.5 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If…

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