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A 1.5991 g sample of a hydrocarbon is combusted to give 1.6918 g of H2O and 5.1661 g of CO2. What is the empirical formula of the compound?
3.20 Existing records reveal the following information about events A and B, where A = a long March warm spell and B = an April flood. Are variables A and B independent. Prove.
Identify the type of reaction for each of the following as combination, decomposition, single replacement, double replacement, or combustion: a) a compound breaks apart into its elements
Draw 2 resonance structures for each of the following molecules. Calculate the formal charge for each atom and indicate whether the structures are equivalent. Benzene, C6H6
It is given that the v.p. of water =233.7 mm Hg.at 70 degree Celsius then calculate the vapor pressure? express your answer in mm Hg ?
The rate constant for the decomposition of dinitrogen pentoxide to form nitrogen dioxide and oxygen gas has the rate constant 1.7 x 10-3 s-1. This is a first order reaction. How long would it take for for the reaction to be 39.00% to complete
Write down a balanced chemical equation for polymerization of a w-hydroxy carboxylic acid (HORCO2H)
Nitrogen gas may react with hydrogen gas to form hydrazine gas, N2H4, according to the reaction N2 + 2 H2 ---> N2H4. 10 L of N and 25 L H react to completion (the limiting reagent is converted entirely to hydrazine).
If a student weighs out .500g of oxalate unknown and it takes 20.6 mL of permanganate solution to titrate it, how much oxalate unknown should the student weigh out
what statement best describes the graph representing the integrated 1st order rate law
Based on understanding of enthalpy, what is the sign of dH for the binding of Cu2+ to soil. Explain.
Calculate the pH during the titration of 20.0mL of 0.27 M Propanoic Acid (HPr) with 28.0mL of 0.32 M NaOH. Ka=1.34 x 10^-5.
A solution of acid was found to have a hydrogen ion concentration of 0.03 mol dm-3 what is the pH of the solution?
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