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A chemist ignites a candle and completely burns 4.02 g of akind of wax (C23H48)
a) How many molecules of O2 are used to burn up all thewax?
b) What mass of liqid water is produced when the waxburns?
c) What volume od CO2g is produces if the reaction occurs atstp?
The most common source of copper is the mineral chalcopyrite (CuFeS2) how many kilograms of chalcopyrite must be mined to obtain a 440 grams of pure copper.
Describe how you would purify p-nitrobenzoic acid from a mixture of a 9.0 g of p-nitrobenzoic acid and 2.0 g of o-nitrobenzoic acid using recrystallization.
Use the following data on oxygen solubility to calculate the enthalpy of reaction for oxygen dissolving into water.
chlorine is widely used to purify municipal water supplies and to treat swimming pool waters. suppose that the volume
using a solution contains 10 ammonium by mass and hasnbsp density 0.99 gcm-3. determinenbsp hydroxyl and hydrogen ion
what is the pH after the addition of 2.7*10-2 moles of KOH to 3.6*10-2 moles HCl if the resulting solution volume is 150mL
How rapidly would each of the following particles be moving if they all had the same wavelength as a photon of red light (wavelength = 750 nm)
Draw (A) a 1o alcohol with four carbons; (B) a 3o iodide with five carbons; (C) a 2o alcohol with a 1o chloride on three carbons; and (D) a methyl bromide.
The mitochondrion has two membranes, the inner and outer- the outer membrane is porous and enables many molecules to freely diffuse. The inner membrane is different from the outer membrane as it is only penetrable to o2
A solution is prepared by dissolving 11.5 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 10.00 mL sample of this stock solution is added to 52.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..
Write a series of equilibrium expressions, a mass balance and a charge balance representing the complete reaction of 0.01 M H4EDTA
Find out the Kb of ammonia if the pH of a buffer formed by mixing 50.0 mL of 1.00 M NH 3 and 50.0 mL of 1.00 M ammonium nitrate?
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