72 and 73 please nbook.ir/edu3.71 Potassium nitrate decomposes on heating, producing potas-sium oxide and gaseous nitrogen and oxygen:ansh4KNO3(s)2K20(s) + 2N½(8) + 502(g)afTo produce 56.6 kg of oxygen, how many (a) moles of KN03 and(b) grams of KNO3 must be heated?3.72 Chromium(III) oxide reacts with hydrogen sulfide (H2S) gasto form chromium(III) sulfide and water:Cr,O3(s) + 3H,S(g)Cr,S3(s) + 3H2O(1)To produce 421 g of Cr,S3, how many (a) moles of Cr,O3 and(b) grams of Cr,O3 are required?3.73 Calculate the mass (g) of each product formed when 43.82 gof diborane (B,H) reacts with excess water:B,H,(g) + H,O(1)H;BO3(s) + H2(g) [unbalanced]>3.74 Calculate the mass (g) of each product formed when 174 g ofsilver sulfide reacts with excess hydrochloric acid:Ag,S(s) + HCI(aq)AgCl(s) + H,S(g) [unbalanced]3.75 Elemental phosphorus occurs as tetratomic molecules, P4.What mass (g) of chlorine gas is needed to react completely with455 g of phosphorus to form phosphorus pentachloride?3.76 Elemental sulfur occurs as octatomic molecules, Sg. Whatmass (g) of fluorine gas is needed to react completely with 17.8 gof sulfur to form sulfur hexafluoride?3.77 Solid iodine trichloride is prepared in two steps: first, anhlorine to form solid

From the data given 3.72)We are calculating moles and grams of Cr2O3 respectively 3.73)We are…

3.72 Chromium(III) oxide reacts with hydrogen sulfide (H2S) gas to form chromium(III) sulfide and water: Cr,O3(s) + 3H,S(g) Cr,S3(s) + 3H2O(1) - To produce 421 g of Cr,S3, how many (a) moles of Cr,O3 and (b) grams of Cr,O3 are required? 3.73 Calculate the mass (g) of each product formed when 43.82 g of diborane (B,H6) reacts with excess water: B,H6(g) + H20(1) → H;BO3(s) + H2(g) [unbalanced] |

3.72 Chromium(III) oxide reacts with hydrogen sulfide (H2S) gas to form chromium(III) sulfide and water: Cr,O3(s) + 3H,S(g) Cr,S3(s) + 3H2O(1) - To produce 421 g of Cr,S3, how many (a) moles of Cr,O3 and (b) grams of Cr,O3 are required? 3.73 Calculate the mass (g) of each product formed when 43.82 g of diborane (B,H6) reacts with excess water: B,H6(g) + H20(1) → H;BO3(s) + H2(g) [unbalanced] |

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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