CHEMISTRY+CHEM...(LL)-W/ACCESS >CUSTOM<
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ISBN: 9780357096949
Author: Kotz
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Chapter 3, Problem 68GQ
Balance the following equations:
(a) for the reaction to produce "superphosphate" fertilizer
Ca3(PO4)2(s) + H2SO4(aq) → Ca(H2PO4)2(aq) + CaSO4(s)
(b) for the reaction to produce diborane,
B2H6 NaBH4(s) + H2SO4(aq) → B2H6(g) + H2(g) + Na2SO4(aq)
(c) for the reaction to produce tungsten metal from tungsten(VI) oxide
WO3(s) + H2(g) →W(s) + H2O(ℓ)
(d) for the decomposition of ammonium dichromate
(NH4)2Cr2O7(s) → N2(g) + H2O(ℓ) + Cr2O3(s)
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NMR spectrum of ethyl acetate has signals whose chemical shifts are indicated below. Which hydrogen or set of hydrogens corresponds to the signal at
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ethyl acetate
H NMR: 1.3 ppm, 2.0 ppm, 4.1 ppm
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How many signals do you expect in the H NMR spectrum for this molecule?
Br Br
Write the answer below.
Also, in each of the drawing areas below is a copy of the molecule, with Hs shown. In each copy, one of the H atoms is colored red. Highlight in red all other H
atoms that would contribute to the same signal as the H already highlighted red
Note for advanced students: In this question, any multiplet is counted as one signal.
1
Number of signals in the 'H NMR spectrum.
For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to
the same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at right.
Check
For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute
to the same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at right.
O
✓
No additional Hs to color in top
molecule
ง
No additional Hs to color in bottom…
in the kinetics experiment, what were the values calculated? Select all that apply.a) equilibrium constantb) pHc) order of reactiond) rate contstant
Chapter 3 Solutions
CHEMISTRY+CHEM...(LL)-W/ACCESS >CUSTOM<
Ch. 3.2 - (a) Butane gas, C4H10, can burn completely in air...Ch. 3.4 - Predict whether each of the following ionic...Ch. 3.5 - In each of the following cases, does a...Ch. 3.5 - In each of the following cases, aqueous solutions...Ch. 3.6 - Prob. 3.5CYUCh. 3.6 - Prob. 3.6CYUCh. 3.7 - Prob. 3.7CYUCh. 3.8 - Assign an oxidation number to the underlined atom...Ch. 3.8 - Prob. 3.9CYUCh. 3.9 - Prob. 3.10CYU
Ch. 3.9 - Prob. 1.1ACPCh. 3.9 - Prob. 1.2ACPCh. 3.9 - Prob. 1.3ACPCh. 3.9 - Prob. 1.4ACPCh. 3.9 - Prob. 1.5ACPCh. 3.9 - Prob. 2.1ACPCh. 3.9 - Prob. 2.2ACPCh. 3.9 - Prob. 3.1ACPCh. 3.9 - Prob. 3.2ACPCh. 3 - The equation for the oxidation of phosphorus in...Ch. 3 - Write an equation from the following description:...Ch. 3 - The equation for the reaction of phosphorus and...Ch. 3 - The equation for the reaction of aluminum and...Ch. 3 - Oxidation of 1.00 g of carbon monoxide, CO,...Ch. 3 - A 0.20 mol sample of magnesium burns in air to...Ch. 3 - Write balanced chemical equations for the...Ch. 3 - Write balanced chemical equations for the...Ch. 3 - Prob. 9PSCh. 3 - Prob. 10PSCh. 3 - Prob. 11PSCh. 3 - Balance the following equations, and name each...Ch. 3 - Prob. 13PSCh. 3 - Prob. 14PSCh. 3 - Equal amounts of two acidsHCl and HCO2H (formic...Ch. 3 - Prob. 16PSCh. 3 - What is an electrolyte? How can you differentiate...Ch. 3 - Name and give the formulas of two acids that are...Ch. 3 - Which compound or compounds in each of the...Ch. 3 - Which compound or compounds in each of the...Ch. 3 - The following compounds are water-soluble. What...Ch. 3 - The following compounds are water-soluble. What...Ch. 3 - Decide whether each of the following is...Ch. 3 - Decide whether each of the following is...Ch. 3 - Balance the equation for the following...Ch. 3 - Balance the equation for the following...Ch. 3 - Predict the products of each precipitation...Ch. 3 - Prob. 28PSCh. 3 - Write a balanced equation for the ionization of...Ch. 3 - Write a balanced equation for the ionization of...Ch. 3 - Prob. 31PSCh. 3 - Phosphoric add can supply one, two, or three H3O+...Ch. 3 - Prob. 33PSCh. 3 - Prob. 34PSCh. 3 - Prob. 35PSCh. 3 - Prob. 36PSCh. 3 - Prob. 37PSCh. 3 - Prob. 38PSCh. 3 - Write an equation that describes the equilibrium...Ch. 3 - Write an equation that describes the equilibrium...Ch. 3 - Prob. 41PSCh. 3 - Write two chemical equations, one in which H2PO4...Ch. 3 - Balance the following equations, and then write...Ch. 3 - Balance the following equations, and then write...Ch. 3 - Prob. 45PSCh. 3 - Balance each of the following equations, and then...Ch. 3 - Write balanced net ionic equations for the...Ch. 3 - Write balanced net ionic equations for the...Ch. 3 - Siderite is a mineral consisting largely of...Ch. 3 - The mineral rhodothrosite is manganese()...Ch. 3 - Prob. 51PSCh. 3 - Prob. 52PSCh. 3 - Determine the oxidation number of each element in...Ch. 3 - Determine the oxidation number of each element in...Ch. 3 - Prob. 55PSCh. 3 - Which two of the following reactions are...Ch. 3 - In the following reactions, decide which reactant...Ch. 3 - In the following reactions, decide which reactant...Ch. 3 - Balance the following equations, and then classify...Ch. 3 - Prob. 60PSCh. 3 - Classify each of the following reactions as a...Ch. 3 - Prob. 62PSCh. 3 - Balance each of the following equations, and...Ch. 3 - Complete and balance the equations below, and...Ch. 3 - Prob. 65PSCh. 3 - Prob. 66PSCh. 3 - Balance the following equations: (a) for the...Ch. 3 - Balance the following equations: (a) for the...Ch. 3 - Prob. 69GQCh. 3 - Give the formula for each of the following...Ch. 3 - Prob. 71GQCh. 3 - Name two anions that combine with Al3+ ion to...Ch. 3 - Write the net ionic equation and identify the...Ch. 3 - Identify and name the water-insoluble product in...Ch. 3 - Bromine is obtained from sea water by the...Ch. 3 - Identify each of the blowing substances as a...Ch. 3 - The mineral dolomite contains magnesium...Ch. 3 - Aqueous solutions of ammonium sulfide, (NH4)2S,...Ch. 3 - Prob. 79GQCh. 3 - Prob. 80GQCh. 3 - Balance equations for these reactions that occur...Ch. 3 - Prob. 82GQCh. 3 - You are given mixtures containing the following...Ch. 3 - Identify, from each list below, the compound or...Ch. 3 - Prob. 85GQCh. 3 - Prob. 86GQCh. 3 - Gas evolution was observed when a solution of Na2S...Ch. 3 - Prob. 89ILCh. 3 - Prob. 90ILCh. 3 - Prob. 91ILCh. 3 - A Suggest a laboratory method for preparing barium...Ch. 3 - The Toliens test for the presence of reducing...Ch. 3 - There are many ionic compounds that dissolve in...Ch. 3 - Most naturally occurring acids are weak acids....Ch. 3 - You want to prepare barium chloride, BaC12, using...Ch. 3 - Prob. 97SCQCh. 3 - A Describe how to prepare zinc chloride by (a) an...Ch. 3 - A common method for analyzing for the nickel...Ch. 3 - The presence of arsenic in a sample that may also...
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- true or false, given that a 20.00 mL sample of NaOH took 24.15 mL of 0.141 M HCI to reach the endpoint in a titration, the concentration of the NaOH is 1.17 M.arrow_forwardin the bromothymol blue experiment, pKa was measured. A closely related compound has a Ka of 2.10 x 10-5. What is the pKa?a) 7.1b) 4.7c) 2.0arrow_forwardcalculate the equilibrium concentration of H2 given that K= 0.017 at a constant temperature for this reaction. The inital concentration of HBr is 0.050 M.2HBr(g) ↔ H2(g) + Br2(g)a) 4.48 x 10-2 M b) 5.17 x 10-3 Mc) 1.03 x 10-2 Md) 1.70 x 10-2 Marrow_forward
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