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The solubility of the K3[Fe(C2O4)3].3H2O product at 00C is 4.7 g per 100 g water. Given this, calculate the maximum percent yield of product for your own reactant quantities.
The balloon rises to a point in the atmosphere where the pressure is 210. torr and the temperature is -32°C. What is the change in volume of the balloon as it ascends from 1.00 atm to a pressure
If 3.93 g of sodium borohydride contains 2.5× 1023 H atoms, how many moles of H are present in 37 cm3 of sodium borohydride (of density 1.074 g/cm3)?
What is the density of a sulfuric acid solution if 10.00 mL has a mass of 15.04g?
What is the molarity of each ion in a solution prepared by dissolving 0.550 g of Na2SO4, 1.192 g of Na3PO4, and 0.228 g of Li2SO4 in water and diluting to a volume of 100.00mL?
An evacuated (empty) 276 mL glass bulb weighs 129.6375 g. Filled with an unknown gas, the bulb weighs 130.0318 g. Calculate the gas density in g/L, and express it with an appropriate number of signi
For the reaction given below, the frequency factor A is 8.7 1012 s-1 and the activation energy is 63 kJ/mol. NO(g) + O3(g) → NO2(g) + O2(g) What is the rate constant for the reaction at 85°C?
25 ml of 0.1002 HA was titrated with 10 ml of 0.1997 NaOH , pH is 4.46 , what is the Ka value? and what is the pH at equivalence point.
Assuming the connecting tubes have negligible volume, what is the partial pressure of each gas and the total pressure after all the stopcocks are opened?
A 45.0 g aluminum block initally at 28.0 Celsius absorbs 825 Joules of heat. What is the final temperature of the aluminum? The specific heat capacity of aluminum is 0.903 J/(g Celsius).
Draw two Lewis structures for Cl2O7: one with a chlorine-chlorine bond and one with a Cl-O-Cl arrangement of atoms.
What mass of CCl2F2 substance must evaporate in order to freeze 135 g of water initially at 15 degrees celsius? (The heat of fusion of water is 334 J/g the specific heat of water is 4.18 J/gK .)
POCl3(g) POCl(g) + Cl2(g) is at equilibrium. Which of the following statements describes the behavior of the system if the partial pressure of chlorine is reduced by 50%?
An excess of zinc metal reacts with 500. mL of 12M hydrochloric acid and produces 48.8 L of hydrogen gas at 20 degrees C and 750 torr. Determine the mass of zinc metal reacted.
A 1.0 L solution has a mixture of 0.05 M NaH2PO4 (pKa = 6.86) and 0.10 M Na2HPO4. How much 1.0 M NaOH should be added to bring the solution to pH 7.4?
The density of H2O2 is 1.463g/mL and the density of O2 is 1.428 g/L. How many liters of O2 can be made from 55.0 mL of H2O2? How many liters of O2 will form if 22.5 g H2O2 react?
Imagine that you have a 7.00 gas tank and a 2.50 gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger ta
What volume would this air occupy if it were at 25.0°C under a pressure of 5.00 102 atm (a typical pressure in a compressed air cylinder)?
The Hall process for the production of aluminum involves the reaction of aluminum oxide with elemental carbon to give aluminum metal and carbon monoxide. If the yield of this reaction is 75%, what m
Aluminum burns in bromine producing aluminum bromide. In a laboratory 6.0 g of aluminum reacts with excess bromine. 50.3 g of aluminum bromide are produced. What are the three types of yield.
Calculate the heat released when 3.89 L of Cl2(g) with a density of 1.88 g/L reacts with an excess of sodium metal at 25°C and 1 atm to form sodium chloride.
When the bottle is opened, the partial pressure drops to 3.0 multiplied by 10-4 atm. What is the solubility of CO2 in the open drink? Express your answer in grams per liter.
What mass in grams of carbon dioxide is produced if 85.0 mol of magnesium carbonate, MgCO3, are heated and allowed to decompose according to this equation? MgCO3(s)--> MgO(s) + CO2(g)
How many liters of ethylene glycol, CH2(OH)CH2(OH), should be added to a car radiator that contains a total of 6.5 L of coolant in order to protect the cooling system from freezing to a temperature