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A sample of an unknown gas with a mass of 3.24 g occupies a volume of 1.88 L at a pressure of 748 mmHg and a temperature of 20.0 degrees C: a) What is the mo;ar mass of the gas? b) If the unknown gas is composed of 2.78 g of carbon and the rest is hydrogen, what is its molecular formula
Identify each of the following as an acid or base and write a chemical equation showing how it is an acid or a base according to the Arrhenius definition?
How many moles of O2 are required for the complete combustion of 2.2 g of C3H8 to form CO2 and H2O?
Explain using the Michaelis-Menten model the reasonsing behind the net effect of an irreversible inhibitor on the enzyme's substrate affinity and rate of product formation?
Explain how the creation of coal, graphite, diamond and - buckminsterfullerene permits the required bonds to form. If you could answer in 100 - 150 words paragraph, I would highly appreciate it. If you could include references. Thanks.
what is the theoretical (or calculated) yield of NH4 Al (SO4)2 * 12 H2O formed from 1.872 g of Al(OH)3?Assume all other reagents are in excess
A reaction produces 2 moles of a solid product from 2 moles of liquid and 1 mole of gas reactants. The process is exothermic
What is the molarity of an NaCl solution prepared by dissolving 9.3g NaCl in sufficient water to give 350mL of solution.
The crystalline form of rhodium (Rh) is composed of face-centered cubic unit cells. If the density of rhodium is 12.42 g/cm3 at room temperature
If the measured gas pressure in a collection flask during a gas-forming reaction was determined to be 1.44 atm, and the atmospheric pressure that day was measured as 0.95 atm.
Using the ideas regarding the effect of basic anions on salt solubility. Which order is correct for the solubility and the Ksp.
A heat lamp produces 20.0 watts of power at a wavelength of 5.7?m .How many photons are emitted per second?
Calculate the fraction of atom sites that are vacant for lead at its melting temperature of 327C
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