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A hydrate of calcium sulfate CaSO4.XH2O contains 20% water. calculate the ater of crystallization (X), and write the formula of the hydrate
Briefly describe the pathway of the protons and electrons of two hydrogen atoms that come from NADH/H+ and pass through the electron transport chain apparatus (including complexes I - V). What are the major electron carriers within these complexes
Based on the ionization energies of the alkali metals, which alkali metal would you expect to undergo the least exothermic reaction with chlorine gas
Calculate the change in pH when 9.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
What is the heat of formation of NaOH which molarity is 2.02? If heat of formation of NaON, which molarity is M 1.00, -469.6, is heat of formation
At 2000 degree C the equilibruim constant for the reaction 2NO-> N2+O2 is kc=2.4x10^3. the initial concentration of NO is 0.190 M. What is the equilibruim concentration of N2 and O2
Suppose a house has a floor area of 2250 square foot. What is the area in units of square centimeters
how much heat is required to raise the temperature of 789 g of acetic acid from 25 degrees celsius to 82.7 degrees celsius? Specific heat = 2.05 J/gdegreeCelsius
Compound XF3, where the identity of X is unknown, consists of 64.8% F by mass. What is the atomic weight of X?
100 microliters of a solution containing 1 mM magnesium chloride are combined with 10 microliters of a solution containing 10 mM magnesium acetate and diluted to a final volume of 1.5 mL. What is the concentration of magnesium ions in the sample
Choose the answer that shows a correctly balanced equation.
The temperature of the water and that of the gas are identical at 26oC. how many moles of helium have been evolved.
question the freezing-point depression of a 0.100 m molality mgso4 solution is 0.225 degrees celsius. determine the
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