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How many moles of oxygen are consumed during the complete combustion of one mole of methanol?
Adrenaline is the hormone that triggers the release of extra glucose molecules in times of stress or emergency. A solution of 0.64 g of adrenaline in 36.0 g of CCl4 elevates the boiling point by 0.49°C. What is the molar mass of adrenaline?
Question- Given that the molar mass of H3PO4 is 97.994 g/mol, determine the number of grams of H3PO4 needed to prepare 0.35 L of a 1.25 M H3PO4 solution
Imagine that you have a 7.00 gas tank and a 3.50 gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
Problem- A sample of gas occupies a volume of 74.8 mL. As it expands, it does 116.3 J of work on its surroundings at a constant pressure of 783 torr. What is the final volume of the gas
What are the equilibrium concentrations of H2,I2, and HI. (B) to what extent does the reaction proceed? Explain. (C) what is the Kc for the production of one mole HI?
Calculate the amount of heat liberated (in kJ) from 405 g of mercury when it cools from 94.0°C to 14.0°C.
what percentage of the original ag remains in solution when 180 ml 2.10times10-2 m agno3 is added to 240 ml
Presume you have isolated a new photosynthetic microorganism that oxidizes H2S and passes the electrons to NAD+. Explain what wavelength of light would provide enough energy for H2S to reduce NAD+ under standard condition.
What volume of 4.7 M NaOH is required to react completely with 1.7 mL of a 1.51 M HCl solution?
Calculate the equilibrium concentrations of all species which result from an original mixture of 2.0 moles of NO and 1.0 mol of Cl2 in a 1.0 L container.
A cylinder with a moveable piston contains 0.533 of gas and has a volume of 268. What will its volume be if an additional 0.256 of gas is added to the cylinder
For each of these three chemicals, state how the "parity rule" is (or is not) obeyed by the MS data. If this question cannot be answered for a chemical, state briefly why not (for example, what additional data would be needed or why the situation ..
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