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A chemistry student needs to weigh out exactly 1.19 mol of Mg(HCO3)2 to perform a laboratory experiment. How many grams should he weigh out?
According to the following reaction, how many grams of hydrogen gas are necessary to form 0.475 moles nitrogen gas? nitrogen monoxide (g) + hydrogen (g) nitrogen (g) + water (l) 2) According to the following reaction, how many moles of carbon diox..
Calculate the energy in kJ/mol of a mol of photons in the gamma ray region of the electromagnetic spectrum that has a wavelength of 4.13 pm. Express answer in scientific notation.
An unknown is believed to be an alcohol because the IR spectrum showed broad absorption at 3200-3500 cm-1 and no absorption in the 1700-1750 cm-1 region.
This compound undergoes catalytic hydrogenation to give 2,2,4-trimethylpentane.
If a sample of sodium is dropped into a container of water the reaction is:
There are about 1,200,000 autos .each auto emits 3.1g NO2 and 1.6g CH4 per vehicle mile. Each auto travels 30 miles round trip per day. How much NO2 and CH4 in g/day is emmited in the air daily?
Suppose that the microwave radiation has a wavelength of 12.7 cm. How many photons are required to heat 200. mL of coffee from 25°C to 62°C?
If 3.0 ml of distilled water is added to 2.0 ml of 0.35 M CoCl2 solution , what is the concentration of the resulting solutions?
The boiling point of a solution containing 10.44 g of an unknown nonelectrolyte in 50.00 g of acetic acid is 159.2°C. What is the molar mass of the solute?
A student determines the molar mass of methanol. She found that the equilibrium temperature of a mixture of ice and pure water was 0.4 degrees C on her thermometer
Determine the final concentration if a 144-mL portion of that solution is diluted using water of 143 mL ?
The enthalpy of formation of compound X is -612 kJ/mol, and the sole product of its combustion has a enthalpy of formation of -671 kJ/mol. What is the enthalpy of combustion of compound X?
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