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if 98 g grams of CaCN2 reacts with 59 g grams of H2O, what mass of NH3 will be formed.
Calculate the average speed of a gas that has a molar mass of 2.08 × 10-2 kg /?mol at a temperature of 22°C. The value for the gas constant, R, is 8.314 J /?mol K.
The solubility product constant for Ce(IO3)3 is 3.2 *10 ^-10, What is the Ce3+ concentration in a solution prepared by mixing 50.0 mL of 0.250 M Ce 3+ with 50.0 mL of 0.040 M IO3^-?
How many moles contain each of the following? 3.75 x 10^24 molecules CO2
2.9 mol Fe(OH)3 and 7.7 mol H2SO4 react according to the equation 2 Fe(OH)3 + 3H2SO4 ->Fe2(SO4)3 + 6H2O. If the limiting reactant is Fe(OH)3, calculate the amount of Fe2(SO4)3 formed.
A procedure called coulogravimetric analysis combines a weight determination with a measurement of the quantity of electricity in a controlled-potential electrolysis to analyze bromide-chloride mixtures
What is the osmotic pressure of a solution made from dissolving 95.0 g of glucose, C_6H_{12}O_6, in 725 mL of water at 39.0 degrees C?
determine the minimum length of a surface crack that will lead to fracture. Assume a value of 0.96 for Y.
Although Pd (II) complexes with monodentate O-donor ligands are not as plentiful as those with P- , S- and As-donor Ligands
The component of structure responsible for holding the 4 chains of hemoglobin together is a. primary
Which of the following reduces the solubility of calcium fluoride?
The radius of a gold atom is 144 pm. How many gold atoms would have to be laid side by side to span a distance of 2.63 mm?
when an irregularly shaped chunk of silicon weighing 8.763 g was placed in a graduated cylinder containing 25.00 mL of water, the water level in the cylinder rose to 28.76 mL. What is the density of silicon in g/cm3?
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