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Which of the following combinations of peaks appears in the 1H NMR spectrum of diethyl ether, CH3CH2OCH2CH3? a. a triplet and a doublet b. a quartet and a sextet c. two singlets d. a triplet and a quartet Which of the following combinations of peaks appears in the 1H NMR spectrum of 1,2-dimethyoxyethane, CH3OCH2CH2OCH3? a. two singlets b. a singlet and a triplet c. a singlet and two triplets d. a doublet and a triplet Please explain!?
Do not delete any of the atoms or bonds in the ring or directly attached to the ring with the Erase button, and do not move atoms or groups directly attached to the ring by dragging them.
A mixture of fuel containing 0.530 mol CH4/mol, 0.330 mol C3H8/mol, and 0.140 mol C5H12/mol at 60.0°C and 125 kPa (gauge) enters a furnace at a rate of 91.0 L/min where it reacts with 17.4% excess air.
Write the net redox reaction.
Consider the following reaction: 2Mg + O2 --> 2MgO , Rate = k[Mg][O2]^2 Part A What is the overall reaction order? Express your answer as an integer. Part B What are the units of the rate constant k for this reaction?
The value of nD20 for a mixture can be approximatedas the weighted average of the refractive indices ofthe individual components. For a heptane/alpha-pinene mixture nD20 (mixture)=VheptanenD20 (heptane) + VpinenenD20 (pinene)
aliquot of the HCl solution required 13.98 mL of 0.08485 M potassium permanganate (KMnO4) to reach the purple endpoint. A blank required 0.08 mL. Balance the reaction below and determine the percent WO3 in the ceramic sample.
Discuss the two main mechanisms in nucleophilic substitution reactions. Provide examples, show reaction diagrams, discuss controls of reaction rates, stereochemistry
What is the boiling point of a solution that is produced by adding 650 g of cane sugar (molar mass is 342.3 g/mol) to 1.5 kg of water? Cane sugar is a molecular substance.
determine the theoretical yield and the percent yield of ethanol if 684 g of sucrose undergoes fermentation and 349 g of ethanol is obtained
A gaseous compound containing carbon and hydrogen was analyzed and found to consist of 83.65% carbon by mass. What is the empirical formula of this compound
The disappearance of X is monitored at timed intervals. Assume that temperature and volume are kept constant. The data obtained are shown in the table below.
When iron(III) oxide reacts with hydrochloric acid, iron(III) chloride and water are formed. How many grams of iron(III) chloride are formed from 10.0 g of iron(III) oxide
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