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If a soil has 15.2cmol of negative charge/kg, Explain how many actual negative charges does this equal per 100 grams?
compound b has a molar mass of 55.87 gmol. a solution is prepared by dissolving 1.00 g of compound b in enough water
A radioactive sample contains 2.50g of an isotope with a half-life of 3.8 days. How much of the isotope in grams will remain after 14.2 days
Summarize the relative reactivity of the Toluene, Ethylbenzene, Isopropylbenzene, tert-Butylbenzene, Cyclohexane, Methylcyclohexane compounds and propose an explanation for relative reactivity of these compounds.
a gas mixture with a total pressure of 770 mmHg contains each of the following gases at the indicated partial pressures: CO2, 122 mmHg; Ar, 209 mmHg; and O2, 191 mmHg. The mixture also contains helium gas. what is the partial pressure of the heliu..
The latent heat of fusion for sodium is 2.6kJ/mol. How much heat is needed to melt 46g of sodium at its melting point of 98 degree Celcius?
give full mechanism: show the base-catalyzed formation of the monobutylated product from 1-chlorobutane and diethyl malonate
Explain why if benzoic acid were substituted for 2-methoxyphenylacetic acid in this experiment the enantiomeric ratio of the yeast reduction product could not be determined by 1 H NMR.
A buffer is prepared by adding 25.0 mL of 0.12 M HCl(aq) to 55.0 mL NaCH3CO2(aq). What is the solubility of BaF2 in this buffer solution
magnesium hydroxide is 54.87 oxygen by mass. how many grams of oxygen are in 175g of the compound? how many moles of
How much work is done in kilojoules as a result of the reaction shown. 2.5 atm with a volume of 2L --> 2.5 atm with a volume of 3L
Why do I add strong acid (e.g. HCl) to the salt of a weak acid (ammonium acetate) to bring UP the pH of the buffer solution from the pKa
Meteorologists historically reported pressures in mmHg or inches of water. Explain what is the pressure in atm and in pascals, if the pressure in a lower pressure system is 722 mmHg
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