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The complete combustion of a substance containing carbon andhydrogen requires 1 mole of oxygen for each mole of carbon and 1mole of oxygen for every two moles of hydrogen to form the productsCO2 and H2O. Calculate how many moles of atmospheric oxygen are required tocompletely burn one mole of each of the six packaging plastics.(
6NO2+2H2O=4(HNO3)+2NO. For this equation, how many grams of nitrogen dioxide are needed to react with 3.70mol of H2O? How many grams of nitrogen monoxide are produced when 2.18mol of H2O react?
for ammonia, Kb is 1.8*10^-5, to make a buffered solution with pH of 10.0, the ratio of [NH4+] to [NH3] must be
Given that: 2 H2(g) + O2(g) ? 2 H2O(g), four moles of hydrogen should react with excess oxygen to produce 2 moles of water.
Why is it not possible for the molar mass of a monoprotic acid to have a value less than 1g/mol
calculate the molecular mass of paba a common sunscreen agent. when 8.32g of paba is dissolved in 150.0g of chloroform
What chemical tests might be used to distinguish between pentanal and 2- pentanone; between benzyl alcohol and diphenylmethanol?
Imagine that a chemist has cyclohexanone, triphenylphosphine, butyllithium, and 2-bromobutane.
what fators are generally responsible for the variaion in the base strength of nitrogen
The balloon then drifted up into the Earth's atmosphere. Assuming the air pressure does not change, determine the volume of that helium balloon when it is 10km above Earth, where the atmospheric temperature is -53 degrees Celsius.
If a solution is made by mixing 20.0 mL 0.3 M NaCH3COO with 30 mL 0.4 M CH3COOH, calculate the pH of the solution? For acetic acid, K = 1.76 x 10-5.
Methyl orange is an indicator that changes color over a range from pH =3.1 to pH =4.4 . What is Ka of methyl orange
Told ball had a wavelength of 5*10-26nm velocity of 60mph what would be the mass of the ball
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