Why the compound contains only hydrogen and carbon
The combustion analysis of toluene, a common organic solvent, forms the 0.00137g of H2O and 0.00586g of CO2. If the compound contains only hydrogen and carbon, determine the molecular formula when the molecular mass is 92g/mol.
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Explain how long would it take in seconds to increase the temperature of the water from 12.0oC to41.5oC when a bowl of 345 g of water is placed in a microwave oven that puts out the 766 watts (J/s).
What is the final temperature when 121 mL water at the 30.°C is mixed with 63 mL water at the 84°C? Assume that no heat is lost to the surroundings and that the density of water is 1.00 g/mL.
Explain why is it important to fill the burette with the NaOH solution before performing a acid/base titration, and discuss what effect does that have on the determination of the Ka of the acid?
Calculate the approximate sample mean, sample variance, sample standard deviation, sample median, and sample mode from the data in the following frequency distribution:
Hydrogen gas,H2(g) and the Carbon dioxide gas, CO2 (g), are brought together in a vessel and heated to1565oC. At this temperature they react to produce the water, H2O(g) and the carbon monoxide oxide, CO(g). Explain, are the reactants or the
Determine the numbers of electrons will aluminum gain or lose when it forms an ion? Write down a concise paragraph explaining what is meant by the "diagonal effect" and explain how it can be accounted for.
Determine the concentration of Ca+2 and CO3-2 at equilibrium. Determine the equilibrium constant for the dissolution reaction.
A 2.0-L vessel contains the 4.65g of a gas at 1.00 atm and 27.0 degree C. Determine the density of the gas in grams per liter. Determine the molar mass of the gas?
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