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Considering the given reaction: 3 BaSO4(s) + 2 AlCl3 (aq)®Al2(SO4)3(aq) + 3BaCl2 (aq) Write the balanced equation for the reaction if 0.780 grams of Al2(SO4)3 was mixed with 0.950 g of BaCl2 and white precipitate barium sulfate was formed also determine Which one is limiting reagent and what would the theoretical yield be?. Determine the percent yield of barium sulfate If the actual yield = 0.456 grams?
The protein needs to be in 1X buffer and in a total volume of 0.100 mL. You are given a 5mg/mL protein solution, a 20X sample buffer, and distilled water. How much of each wuld you mix together to make the required volume?
What is the value of x in the formula for the hydrate? (hint: remember that x represents the ratio of moles of H2O to moles of hydrate compound, and that moles of hydrate compound equals the moles of anhydrous compound)
According to the Second Law of Thermodynamics, any process during which the entropy of the system increases will be product-favored.
Calculating Internal Energy Change, The heat capacity of a bomb calorimeter is 87.5kJ K-1 (this value is for the total heat capacity, including that of the water jacket around the reaction chamber)
A freeway has 10,000 vehicles per hour passing a house 200 m away. Each car emits an average of 1.5 g/mi of NOx, and winds are blowing at 2 m/s across the freeway towards the house.
A free electron initially at rest at the back of Cathode ray tube in your television accelerate through a potential
Iodine-131 is a radioactive isotope. After 7.00 days, 54.7% of a sample of 131I remains.
a student used a pH probe that was not properly calibrated. the probe reads the pH one unit higher than it should be. what would the calculated Ka value of the unknown acid
What ions and/or molecules are present in relatively large proportions in a solution of a weak base NH4OH (aq)?
Acid chlorides are used as electrophiles in the Friedel-Crafts reaction to prepare aromatic ketones. The reaction involves the transfer of an aromatic hydrocarbon with an acyl chloride in the presence of a lewis acid
The acceptable limit for mercury in drinking water is 2ppb. Does this correspoond to mercury in its elemental form (Hg) or in its ionic form (Hg^2)
(a) If the fuel consists of 9.3 mole CH4, 3.1 mole C2H6, 0.40 mol C3H8, and 0.20 mole C4H10, what mass of CO2 (g) is produced per minute? (b) How much heat is released per minute?
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