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A typical city water tower holds on average 80000L of water. This equates to a mass of 8.0 x 107 grams. What percent of this mass comes from oxygen?


How many moles of ATP and NADPH are required to convert 6 moles of CO2 to

fructose-6-phosphate? Give all the reactions involved.
What is the mass of two moles of propane gas, C3H8?
What are anomers? Explain the existence of anomers in sugars taking D-glucose as

an illustrative case.
A compound contains 6.0 g of carbon and 8.0 g of oxygen. The percent composition of the compound is:
Calculate the standard free energy change for the reaction

H2 + I2 -------> 2HI at 127°c

Given that Kp= 41 atmosphere. ( R= 8.314 JK^-1 mol-1)
Calculate the molarity of a solution prepared by dissolving 24.5 g of KF in enough water to produce 376 mL of solution
How many molecules are in 1.2 moles of Carbon Monoxide (CO)?
Show that a two fold axis of symmetry is present in water molecule.
Derive the term symbols for the p state of the hydrogen atom.
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