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Calculate Eo, E, and deltaG for the following cell reactions Mg (s) + Sn2+ (aq) <===> Mg2+(aq) + Sn(s) [Mg2+]= 0.045 M, [Sn2+] = 0.035 M
Nitric acid is usually purchased in a concentrated form that is 70.3% HNO3 by mass and has a density of 1.41 g/mL
A wildlife biologist is interested in testing the pH of the water in a lake. He obtains a 200. mL sample of the water and titrates this sample with a .050 M NaOH solution.
A water desalination plant is set up near a salt marsh containing water that is 0.10 M NaCl. Calculate the minimum pressure that must be applied at 17°C to purify the water by reverse osmosis.
a certain protein was found to contain 0.639% zinc by mass. Determine the minimum molecular mass of the protein.
How many liters of hydrogen gas are collected over water at 18 0C and 725 mm Hg when 0.84 g of lithium reacts with water. P= 15.5 torr
A sample of of H2O with a mass of 46.0 grams has the temperature of 100C ,how many jolues of energy are necessary to boil the water.
A mixture of 1.10 g H2 and 1.51 g He is placed in a 1.00 L container at 25°C. Calculate the partial pressure of each gas and the total pressure of PHe.
The cost of the salt is $1.92 for 10 kg. A rich new source of CaCl2 was discovered and mined at $1.49 for 10 kg. Which salt is more cost effective?
During the saponification of ethyl tetradecanoate, would you expect the product to generate foam/froth when mixed
What is the molecular formula?
what is the theoretical yield for carbon dioxide. if 1.44 g of carbon dioxide is isolated from this reaction, what is the percent yield for carbon dioxide
How much energy (kJ) is required to convert a 25.0 g ice cube at -15.0oC to water vapor at 250oC?
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