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A container holds equal masses of methane gas (molar mass 16.05 g/mol) and oxygen gas (O2, 32.00 grams/mol) The partial pressure of CH4 is how many times the partial pressure of O2?
Tip: Consider definition of mole fraction, definition of partial pressure, and Dalton's law.
Why is glycogen debranching enzyme necessary? a) It allows regulation of the rate of glycogenolysis. b) Because glycogen phosphorylase cannot convert G1P to G6P
Calculate the work done (in Joules) by the gas if it expands. (a) against a vaccum
The great escape puzzle. Capture the ions and put them back into their jars. There are 8 jars. Label each jar with the formula of the compound containing the captured ions.
Consider the following reaction for the dissociation of benzoic acid (MW=122 g x mol^-1) in water where Ka for benzoic acid is 6.5 x 10^-5. C6H5COOH(aq) + H2O (l) C6H5COO-(aq) + H30+(aq)
Calculate Delta H for the process. Given u ={(2a/RT) - b}/Cp,m; with Cp,m = 38.4j/K.mol; a=3.60dm6 atm and b= 0.44 dm3.mol.
When photons with a wavelength of 310. nm strike a magnesium plate, the maximum velocity of the ejected electrons is 3.45 × 105 m/s.
a 325 ml sample of solution contains 25.3 g of CaCl2. calculate molar concentration of Cl- in this solution
Acetylene gas (C2H2) is produced as a result of the reaction CaC2+2H2O-->C2H2+Ca(OH)2 If 16g of CaC2 are consumed in this reaction, how much H2O is needed? answer in units of mol.
Given the reaction 4Al(s) + 3O2(g) --> 2Al2O3(s), what is the minimum number of moles of oxygen gas required to produce 1.00 mole of aluminum oxide?
If 92.00 grams of zinc combines with 58.00 grams of HCl how many grams of ZnCl2 are produced?
calculate the amount of energy as heat by the freezing of 13.3 g of a liquid substance. given that the substance has a molar mass of 82.9g/mol and a molar enthalpy of fusion of 4.60 kj/mol.
To find the of X-281, you prepare a 0.086 test solution of X-281. The pH of the solution is determined to be 2.70. What is the of X-281
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