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How many mL of .200 M FeCl3 are needed to react with an excess of Na2S to produce 2.75 g of Fe2S3 if the percent yield for the reaction is 65%? 3Na2S + 2FeCl3 = Fe2S3 + 6NaCl
a) 50.9 mL
b) 86.0 mL
c) 102 mL
d) 203 mL
Calculate the pH at the equivalence point in titrating 0.100 M solutions of each of the following with 8.0×10-2 M NaOH. A:lactic acid
if 82.7874 grams of oxygen was given off during the decomposition, how many grams of KCIO3 were used?
Write a balanced net ionic equation to show why the solubility of FeCO3(s) increases in the presence of cyanide ions and calculate the equilibrium constant for this reaction.
The combustion of .1703 mole of hydrocarbon produces 12.27g H2O and 22.48g CO2. What is the molar mass of the hydrocarbon?
Interhalogens are covalent compounds when one halogen is bonded with another halogen. When 3.299 of iodine reacts with fluorine, 5.768g of IFx is formed. What is the value of x in product formula (IFx)?
A student decomposed Potassium Chlorate to create oxygen gas. The oxygn was collected by displacement of water at 22 degrees C and the total pressure was 754 torr.
Which one of the following is a redox reaction?
A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water
Calculate the molarity (M) of the following solutions. Express the answer using 2 sig figures.
If a solution is made by mixing 20.0mL .4M NaCH3COO with 30mL .4 CH3COOH, calculate the pH for acetic acid, Ka = 1.76x10^-5.
A scientist wants to make a solution of sodium phonsphate for a lab experiment. How many grams of sodium phosphate will be needed to produce 475 ml of solution that has a concentration of Na+ ions of 1.50 M?
What is the kinetic energy in joules of a 1183 motorcycle moving at 63.
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