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The soil test report show the following data (CEC = 15 meq/100g)
Cation lbs/afs
Ca+2 3200
Mg+2 360
Na+ 2
K+ 400
a. Calculate the meq/100 g of each cation and the % base saturation of the soil.
b. Calculate the % acid saturation.
Hexane has a vapor pressure of 100 torr at 15.8 C and 400 torr at 49.6 C. What is its deltaHvap
calculate the entropy change when argon at 25 degc and 1.00 bar in a container of volume 0.500 dm3 is allowed to expand
flask of nitrogen is collected over water at a total pressure 765.0 mm Hg. If the partial pressure of the water vapor is 25.0 mm Hg, what is the pressure exerted by the nitrogen?
Ethers can be prepared by SN2 attack of an alkoxide ion on a alkyl halide. Suppose you wanted to prepare cyclohexyl methyl ether, shown below, using the SN2 reaction
how many grams of asprin were lost in the washing process you used to purify your product, assuming you used 50mL if water for washing? The solubility of asprin in water is 0.33g per 100mL at room temperature.
From a consideration of the Lewis structure of the thiocyanate ion, SCN-, in which carbon has a double bond with both the sulfur and nitrogen atoms, the formal charges on the sulfur, carbon, and nitrogen atoms are, respectively,
0.25 mol of formic acid (HCO2H) is dissolved in enough water to make one liter of solution. The pH of that solution is 2.19. The Ka of formic acid is
How many isomers, including stereoisomers, exist for the triacylglercerol which, on saponification, gives 2 molar equivalents of palmitate and 1 molar equivalent of stearate?
How many grams of methanol (CH3OH) must burned to raise the temperature of 1.00 kg H2O from 5.0 Celsius to 90.0 Celsius
Suppose a student is measuring the optical rotation of a 1 M sample of (S)-(-)- Limonene. The path length is 13cm. What optical rotation should the student expect to measure?
Amixture of nitrogen and water vapor is admitted to a flask whichcontains a solid drying agent. Immediately after admission, thepressure of the flask is 760 mm Hg.
In a protein determination, the color of dye changes to blue when it binds to protein, and the absorbance of light is measured. The data below were taken to calibrate the instrument
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