WebScience Chemistry 2.752 g sample of Ca(NO3)2×xH2O is heated to constant mass, the residue weighs 1.941 g. Determine the value of x and the formula of the hydrate. 2.752 g … WebEach part is weighted equally. 1) Plaster of Paris is the compound calcium sulfate hemihydrate, CaSO4•1/2 H20. a. Determine the molar mass of CaSO4•1/2 H20. b. Determine the mass % water in this compound. c. What mass of water is liberated when a 2.763 g sample is heated to constant mass? 2. A
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WebExpert Answer. Transcribed image text: A mass of 5 kg of saturated water vapor at 300kPa is heated at constant pres aches 200∘C. Draw a P − V diagram. Calculate the work done by the steam during m = 5 kg P = 300kpa T = 2∞C caladate If temperature interval is large, using averaged data would the best TRUE or FALSE. Previous question Next ... WebThe mole and the Avogadro constant. Using mass of substance, Mᵣ, and amount in moles. Edexcel Chemistry. Topic 5: Formulae, Equations and Amounts of Substance. 8. be able to calculate reacting masses from chemical equations, and vice versa, using the concepts of amount of substance and molar mass; OCR Chemistry A. Module 2: Foundations in ... small biz management software+ideas
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WebThe crucible is heated until the mass is constant to try to make sure that the reaction is finished and all the water has been given off from the hydrated copper(II) sulfate. This should give the ... Web28 de jul. de 2024 · Q&A By tamdoan · July 28, 2024 · 0 Comment. A hydrated form of copper sulfate (CuSO4·x H2O) is heated to drive off all the water. If we start with 9.63 g of hydrated salt and have 6.16 g of anhydrous CuSO4 after heating, find the number of water molecules associated with each CuSO4 formula unit. HOW do you actually solve this? Web20 de may. de 2024 · Figure 11.5.1: As a container of confined gas is heated, its molecules increase in kinetic energy and push the movable piston outward, resulting in an increase in volume. Mathematically, the direct relationship of Charles's Law can be represented by the following equation: V T = k. As with Boyle's Law, k is constant only for a given gas sample. small biz outsource