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What is the empirical formula of the compound if a 5.56 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion producing 12.64 mg of CO2 and 5.16 mg of H2O?
An aerosol spray can of deodorant with a volume of 350 mL contains 3.0 g of propane gas C3H8 as propellant.
Solution A is 2.00 L of a 2.00 M aqueous solution of copper(II) nitrate. Solution B is 2.00 L of a 3.00 M aqueous solution of potassium hydroxide. React the two solutions. Determine the concentrations of all ions left in solution (from part a) and..
Using stereoformulas, show that reduction of (R)-benzoin from the more hindered face would give give (R,R)-hydrobenzoin. Please no links to external sites. Be clear and concise.
A sample of compact bone has a mass of 5.80 g and a volume of 3.00 cm3. What is the density of the sample?
Calculate the partial pressure of each gas if the composition of the air is: a) 21% oxygen, 78% nitrogen, .3% carbon dioxide
A method of analysis yields masses of gold that are low by 0.4 mg. Calculate the percent relative error caused by this result if the mass of gold in the sample is
Draw the structure of all alkenyl side products that could be formed by dehyradation of 2-methyl-2-butanol by and E1 mechanism. propose a mechanism for the formation of the alkene side products.
Calculate the pH of a buffer that contains 0.270 M hydrofluoric acid (HF) and 0.180 M cesium fluoride (CsF). The Ka of hydrofluoric acid is 6.8 x 10^-4.
Determine the rate constant for the reaction at the temperature of 75 degree celsius?
the solubility of lead (ii) iodide (PbI2) is 0.64 g/L at 20 C. What is the solubility product for lead (II) iodide? Show work please
A 515 g piece of copper tubing is heated to 95.0°C and placed in an insulated vessel containing 57.0 g of water at 30.0°C.
A sample of gas in a balloon has an initial temperature of 22 and a volume of 1610 . If the temperature changes to 58, and there is no change of pressure or amount of gas, what is the new volume, , of the gas?
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