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The mass of Earth is 5.972 * 1024 kg, and the radius of Earth is 6,371 km.
What is the magnitude of the gravitational acceleration (in m/s2) due to Earth at the surface of Earth?
What is the magnitude of the gravitational acceleration (in m/s2) due to Earth 3,000 km above the surface of Earth?
Given the information below calculate ?H°rxn for: C2H4(g) + 6F2(g) => 2CF4 + 4HF(g). H2(g) + F2(g) => 2HF(g) ?H° = -537 kJ C(s) + 2F2(g) => CF4(g) ?°H = -680 kJ 2C(s) + 2H2(g) => C2H4(g)
You add HBr acid to water to make a solution with a pH of 1.6. Assuming complete dissociation occurs, calculate the pOH and the concentration of the Br- in solution. What is the concentration of HBr in solution?
a calculate pcunbspfor the titration of 10.00 ml of 0.05000 m of i-nbspwith 0.02500 m cunbspstandard solution when
Calculate the lattice energy of NaCl. Heat of sublimation is 108kj/mol and Heat of NaCl is -411kj/mol. Energy to dissociate .5 mole of Cl2to an atom of Cl is121.4 kj/mol.
Determine what is the total mass of glucose in 5.10L of blood If a person has a glucos level of 108 mg.100mL, ? express your answer in grams?
Solid iron reacts with chlorine gas to produce iron(III) chloride. If 10.0 grams of iron reacts with excess chlorine gas and 18.5 grams of iron(III) chloride is produced
13.75mL of a 0.165M solution of aqueous hydrochloric acid were required to fully neutralize a sample of aqueous calcium hydroxide. After the neutralization is completed, all of the water is evaporated to reveal a white crystalline solid. Calculate..
Mass fragmentation patterns for a few compounds
Compute the number of electrons in a flake of pure gold valued at $0.5. Assume that the price of gold is $1426.0/troy oz.
Give the structural formulas for all of the different alkenes that can be hydrogenated with h2/pt to produce n propyl cyclohexane
With aqueous H2CrO4, compound A was oxidized to an optically inactive dicarboxylic acid C, C6H10O4. Give structures for compounds A, B, and C; do not specify stereochemistry
What is the change in pH when 0.005 moles of HCl is added to 0.100 L of a buffer solution that is 0.100 M in CH3CO2H and 0.100 M NaCH3CO2? The Ka for acetic acid is 1.8 x 10 -5.
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