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a compound is composed of only C.H and O. the combustion of a 0.519-g sample of the compound yields 1.24g of CO2 and 0.255g of H2O. what is the empirical formula of the compound?
Find the partial pressure and concentration of Nitrogen, Oxygen, and Carbon dioxide.
Calculate the molarity of a solution of glycerol made by dissolving 59.000 mL glycerol at 15 degrees celcius in enough water to make 380.00 mL of solution
I understand the rules for significant figures with multiplication/division, and adding/subtracting. But I am unsure of what to do when there is both multiplication and/or division, and adding and/or subtracting in the same question?
A water skier is pulled by a net force of 135 N and has an acceleration of 1.8 m/s2. What is the mass of the skier.
Rate Law for Proposed Mechanism, Consider the reaction 2NO(g) + O2 ---> 2NO2 (g). The following mechanism has been proposed to explain the experimental rate law
How many grams of water are needed to react with 75.0 g CaCN2?
How many moles of Na2SO3 were added to the calorimeter cup if 40.0mL 0.50 M NaOCl and 60.0mL 0.50 M Na2SO3 were combined?
Calculate the theoretical yield of C2H5Cl when 135 g of C_2H_6 reacts with 225 g of Cl_2, assuming that C_2H_6 and Cl_2 react only to form C_2H_5Cl and HCl.
How many liters of oxygen gas, at standard temperature and pressure, will react with 25.0 grams of magnesium metal? 2 Mg + O2 yields 2 MgO
Devise a suitable reaction sequence in which each of the following compounds can be prepared from benzene in good yield. Assume ortho and para isomers are separate from one another, and use any other reagents you desire.
A sample of MgCl2 is known to be contaminated with NaCl. A 3.47-g portion of the sample is dissolved in water and treated with an excess of AgNO3 solution.
By what factor (how many times) will the rate constant increase when the temperature is raised from 10°C to 28°C?
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