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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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A 15.0 g sample of Cu(NO3)2.nH2O is heated. After the water has been driven off, 11.7 g of Cu(NO3)2 remains. What is the value of n in the empirical formula of this hydrate?
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- Determine the theoretical yield, in grams, of Fe2(CO3)3 produced from the complete reaction of 1.72 grams of Fe(NO3)3 with excess Na2CO3.arrow_forwardCryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation. 1.) Balance the equation - AlO3(s)+NaOH(l)+HF(g)-->Na3AlF6+H2O(g) 2.)If 16.4 kilograms of Al2O3(s), 60.4 kilograms of NaOH(l), and 60.4 kilograms of HF(g) react completely, how many kilograms of cryolite will be produced? 3.)Which reactants will be in excess, (Al2O3, NaOH, or HF) 4.)What is the total mass of the excess reactants left over after the reaction is complete in KG?arrow_forwardSmall quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, KClO3(s). The equation for the reaction is 2KClO3⟶2KCl+3O2 Calculate how many grams of O2(g) can be produced from heating 12.2 g KClO3(s).arrow_forward
- Copper(II) sulfate forms several hydrates with the general formula CuSO4·xH2O, where x is an integer. If the hydrate is heated, the water can be driven off, leaving pure CuSO4 behind. Suppose a sample of a certain hydrate is heated until all the water is removed, and it's found that the mass of the sample decreases by 31.%. Which hydrate is it? That is, what is x?arrow_forwardCooper, Zach and Nate did this experiment dissolving 3.80 g of Cu(C2H3O2)2·H2O and adding 8.60 g NaC7H4SO3N·H2O (assume present in excess). What is the theoretical yield of the product, Cu(C7H4SO3N)2(H2O)4·2 H2O(s)? Molar Mass of Copper(II) acetate monohydrate = 199.65 g/mol Molar Mass of Sodium saccharinate monohydrate = 223.18 g/mol Molar Mass of product = 535.59 g/molarrow_forwardWhat mass of cobalt (III) sulfide is produced from the reaction of 0.750 g of sulfur with 3.50 g of cobalt? Co (s) + S (s) → Co₂S, (s) garrow_forward
- If 465 g of Pb(NO3)2 (FW 331.21 g/mol) is added to a solution containing 215 g of K3PO4 (FW 212.27 g/mol), what mass, in g, of Pb3(PO4)2 (FW 811.54 g/mol) precipitate will be formed? The balanced equation is 3 Pb(NO3)2(aq) + 2 K3PO4(aq) → Pb3(PO4)2(S) + 6 KNO3(aq)arrow_forward1) 2 Cu + S> Cużs When copper is heated with sulfur, the reaction above takes place. If 100. g of Cu is heated with 50.0 g of sulfur, which is the limiting reactant? What is the theoretical yield of Cu>S?arrow_forwardLook at the balanced chemical equation for the reaction between copper and nitric acid: Cu(s) + 4HNO3(aq) → Cu(NO3)2(aq) + 2H2O(l) + 2NO2 (g) How many grams of nitrogen dioxide would be produced if 2.47 g of copper were reacted with excess of nitric acid?arrow_forward
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