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Question 1. The following 1HNMR spectrum was recorded on a 60 MHz spectrometer. It shows three signals. The molar mass of the hydrocarbon is 120 gimol.
a) What causes the unidentified, unintegrated signal?
b) What are the chemical shifts of signals a and b in ppm?
c) Which compound is it?
d) Calculate the chemical shift for all non-equivalent protons.
e) Give a closely related isomeric compound and explain why it is not a proper solution.
Calculate the pH for each of the following points in the titration of 50.0 mL of a 1.5 M H3PO3(aq) with 1.5 M KOH(aq)
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calculate the amount of energy in kilojoules needed to change 153g of water ice at -10 C to steam at 125 C.
the recommended adult dose of elixophyllin a drug used to treat asthma is 6 mgkg of body mass. calculate the dose in
hydrogen is produced when methanech4 reacts with water. the other product is co2. using 80.0g of methane and 16.3g of
A Solution is prepared by dissolving 27g urea in 150g water. Calculate the boiling point of the solution. Urea is a nonelectrolyte
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Write the balanced chemical reaction for the reaction between hydrochloric acid (HCl) and calcium hydroxide, Ca(OH)2 when the products of the reaction are calcium chloride, (CaCl2) and water (H2O)
The heat of vaporization of water at 100°C is 40.66 kJ/mol. Calculate the quantity of heat that is absorbed/released when 9.00 g of steam condenses to liquid water at 100°C.
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