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Explain how much salt in grams would need to be added to 1.84L of water to increase the boiling point by 4.36 °C? Utilize 1.00 g/mL for density of water.
Uranium-235 is an important nuclear fuel. However, the ^235Uisotope is only a very small amount of naturally occurring uranium. Therefore, taking advantage of gas diffusion rates and molecular masses, naturaly occurring uranium(IV) oxide is conver..
Using the Nernst equation calculate the cell voltage for: Fe(s) + Cd2+(aq) ? Fe2+(aq) + Cd(s) when the [Fe2+] = 0.17 M and [Cd2+] = 1.1 M. Potentially useful information: Fe2+ + 2e
a piston-cylinder contains h2o at 15 bar and a temperature of 400 degc. the water is then cooled at constant pressure
1 if 50 kj of heat are given off by a chemical reaction in aqueous solution and all the heat is absorbed by the
Consider the following thermochemical equations : 8Mg(s) + Mg(NO3)2(s) ? Mg3N2(s) + 6MgO(s) ?H°rxn = -3884 kJ Mg3N2(s) ? 3Mg(s) + N2(g) ?H°rxn = +463 kJ 2MgO(s) ? 2Mg(s) + O2(g) ?H°rxn = +1203 kJ Use the above equations to calculate the ?H°f (in k..
Find Delta E(rxn) for the combustion of biphenyl in kJ/mol biphenyl. The heat capacity of the bomb calorimeter, determined in a separate experiment, is 5.86 kJ/degrees Celsius.
Estimate the absolute error in the measurement assuming the absolute error of the balance and thermometer are +/- 0.01g and +/- 0.1 °C respectively.
Pete's Pizza Parlor has 79.9 lbs. of pizza sauce. If the pizza sauce is spread onto large pizza crusts 1.19 mm thick with a diameter of 15.0 inches, how many pizzas can Pete make. Assume the density of the pizza sauce is 1.101 g/mL
A mixture of pentane and hexane has a vapor pressure of 258 torr. The standard vapor pressure of pentane is 425 torr. What is the mole fraction of pentane?
If 1.32g of al were reacted with an excess HCl, what amount of Hydrogen gas would be theoridocially be admitted at STP?
A human piece of pottery is dated at 16,750 years old by using carbon-14. Explain how many half lives have passed since the pottery was make. Define what would the percentage of thorium- 232 (parent compound) be in a rock that was dated at 1.4 bill..
a 7.5- sample of hydrogen gas completely reacts with 60.0 of oxygen gas to form 67.5 of water. is the following data
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