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How many grams of CO2 (Mm = 44.0 g/mol) are produced in the combustion of 70.0g of C8H18 (Mm = 114.2 g/mol)?
2C8H18+ 25O2 -> 16CO2 + 18H2O
mass CO2 = __________ g
An enzyme-catalyzed reaction produces a product that has a maximum absorbance at 412 nm. The extinction coefficient is 4000 M^-1 cm^-1. A 10-to-1 dilution of the enzyme is made and 20 microliter of the dilution are put into a cuvette with 80 micro..
write the full mechanism and balanced equation for the reaction of horseradish peroxidase as an enzyme
Analyze the data from the test. Describe how closely the results of the experiment matched the predictions of the hypothesis.
Carbon-Hydrogen compound is burned in an excess of oxygen to give 1.76g of CO2 and .9g of H20 as the products of combustion. What is the empirical formula of the organic compound. How many grams of the organic compound was burned.
Define how many ml of water density 1.0 g/ml are needed to supply the water in the alum formed from 1.1g of aluminum
The generalized van der Waals chemical potential of a pure solvent and a dilute solute in a solvent
A solution contains 0.010 M Ba2+ and 0.010 M Ag+. Can 99.90% of either ion be precipitated by chromate (CrO42-) without precipitating the other metal ion?
Explain a certain anesthetic contains 64.9 percent C, 13.5 percent H and 21.6 percent O by mass. At 120°C and 750 mmHg, 1.00 L of the gaseous compound weighs 2.30 g. Explain what is the molecular formula of the compound?
How long does it take for the radioactive isotope to decay to 4.9×10?3 mg? (Assume no excretion of the nuclide from the body.)
Volume of a certain mass of a gas is desired to be decreased by 25% of the initial volume of 10l at 1.5 bar and room temprature by what percentage the pressure should be incraesed
Sterling Silver is 92.5% silver by mass. How many lbs of silver are there is a 45.0 Mg piece of sterling silver?
Problem- We wish to prepare a buffer of pH 10 using common laboratory reagents. How many mL of 6M HCl would we have to add to a solution prepared by adding 100 mL of 15M NH3 to 200 mL of water? Ka of NH4 + = 5.70x10-10, pKa = 9.24.
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