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If 10.0 grams of iron reacts with excess chlorine gas and 18.5 grams of iron(III) chloride is produced, what is the percent yield of the iron(III) chloride?
Write the expression for the equilibrium constant. b. Which way would the reaction shift in each of the following cases?
calculate the PH at the points in the titration of 20.00 ml of 0.318M NH3 when, a) 10.00 ml and 15.00 ml of 0.475 M HCl have been added.
What is the heat capacity of the bomb?(Assume that the quantity of water surrounding the bomb is exactly 2250 g).
A gas sample has an original volume of 700 ml when collected at 750 mm and 25°C. What will be the volume of the gas sample if the pressure increases to 810 mm and the temperature increases to 30°C?
A solution is made by mixing 506 mL of water and 198 mL ethanol. What is the concentration of ethanol in units of volume/volume percent.
What was the Ka value calculated by the student if the pH of the solution was 2.60? Express your answer numerically using two significant figures
What mass of liquid water at room temperature (25 C) can be raised to its boiling point with the addition of 31.0 kJ of energy
Calculate the molar concentration of NaNO3 and the mass percent of NaNO3 in the solution. What is the mole fraction of NaNO3 in the solution?
a 50.0 g sample of water is cooled from 30 degrees Celsius to 15 degrees Celsius losing 3140 J of heat What is the change in enthalpy.
An oxygen tank kept at 20 degree C contains 28.0 moles of oxygen and the duage reads 31.0 atm. after two weeks, the guage reads 10.5 atm how many moles of oxygen
the molecular orbital theory provide an explanation for the existence of the covalent molecule Na2 in the gaseous state. How would you predict Na2 by the Lewis theory?
What would the solubility of copper (II) tartrate be in a solution that contains 0.12 M sodium tartrate?
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