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How many grams of solid Fe(NO3)3 (MW = 403.998 g/mol) should be added to 100mL of 1.0 M HNO3, so that the concentration of FE(NO3)3 is 0.02 M?
If 10.6 kilograms of Al2O3(s) , 54.4 kilograms of NaOH and 54.4 kilograms of HF react completely, how many kilograms of cryolite will be produced. What is the total mass of the excess reactants left over after the reaction is complete
a chemist prepares a solution by dissolving 2.228 g of nano3 in enough water to make 200 ml of solution. what molar
A 2.00L buffer solution is 0.250M in HC2H3O2 and 0.250M in NaC2H3O2. Calculate the pH of the solution after the addition of 0.100 moles of solid NaOH. Assume no volume change upon the addition of base.
the activation energy of a certain reaction if 65.7kjmol. how many times faster will the reaction occur at 50 degrees
What mass of aluminum, in grams, can be heated from 24.5C to 44.0C by a quantity of heat sufficient to raise the temperature of 125 g h2O through this same temperature interval
Develop a detailed calorimetric method for determining the temperature of the warm water sample.
Suppose a mixture of two solutions is prepared by mixing 105.-mL of 0.0335 M solution with 35.0-mL of 0.932 M of the same solute (Z). What is the concentration of Z in the combined solution
Calculate the cell potential for the following reaction as written at 53C, given that [Zn2+]= .841M and [Fe2+]= .0160M. Standard reduction potentials are Zn(s)= -.76, Fe2+(aq)= +.771, Zn2+(aq)= -.76, Fe(s)= -.04
for the reaction n2g 2 o2g 2 no2g kc 8.3 times 10-10 at 25degc. what is the concentration of n2 gas at equilibrium
the only swimming pool at the el cheapo motel is outdoors. it is 5m wide and 12 m long. if the weekly evaporation is
At what temperature will He atoms have the same Crms value as N2 molecules at 25 degrees Celsius. Solve this problem without calculating the value of Crms for N2. Crms is the root mean square speed.
What mass of I2 is needed to add to a 250 mL volumetric flask to produce a solution that is 0.20 M? (Enter unit as g.)
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