Question

2. Using the data from the experiment, calculate the mass of copper (II) sulfate residue and the mass of water (Items 5 and 6 from the Data Form). Express your answers in grams to the nearest hundredth (+ 0.01 g). Show your work. 3. Calculate the moles of copper (II) sulfate present from the mass of the copper (II) sulfate. Express your answer in moles as three significant digits. Show your work. 4. Calculate the moles of water driven off from the mass of water. Express your answer in moles as three significant digits. Show your work. Submit this page to your Instructor for grading. 1 of 2 COM Chemistry

Answer 1

Mass of copper sulphate residue = 7.28g

Mass of water = 4.1 g

Moles of Copper sulphate = 0.0456 moles

Moles of water = 0.227 moles

For calculation see the inages below-

Date. 1 2 Mass of Copper sulphate residue (Canhydrous) = 20.01-12.73 = 7.28q

Mass of Watu mass of hyckate before heating -Mass of residue Mass of Water = 11:36 - 7.20 y after heating = 4.1g uchows) 3) Mass Moleu of copper sulphate = mass of cusou = 7.689 159.6 g Moles of cusou = Mass Molar Mass - 7.28 159.6 10.0456 moles 4) Mass of water = 4.19 Molar mass of water = 169 Moles of water a voaut Mass моlом лу = 4.1 1% 098758 9049068 = 0.227 suales

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