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If a sample of barium contains 2.3 x 1023 atoms of barium, how many grams of barium are in the sample?
Describe how branched-chain fatty acids affect the fluidity of membranes and rank the following fatty acids in the order of increasing solubility in water.
Require to apply to neutralize the acidity that concluded from nitrification and determine how much CaCO 3
The reactant concentration in a zero-order reaction was 7.00×10-2 after 105 and 1.50×10-2 after 350 . What is the rate constant for this reaction.
Compute the final temperature of the mixture (assuming no heat loss to the surroundings.)
Following a terrorist release of Cesium-137 (half-life of 30 years) in downtown, clean up efforts were successful in removing all but 100 curies. How long will it take for the contamination to decay to about 5 curies?
Suppose the volume of this system is compressed to one-half its initial volume and then equilibrium is reestablished. what would be the new equilibrium total pressure.
Calculate the concentration of a red dye solution with an absorbance of 0.617. If you have 5.78ml of the solution how many mg of red dye are found in the solution.
A 1-ft-diameter cylinder is closed on one end and fitted with a moveable piston on the other. With 1 atm applied pressure, the piston is located 20 ft from the closed end
Empirical and Molecular Formulae, The analysis of an organic compound produces the following elemental analysis: % C is 59.999% and % H is 4.476%.
calculate the final molarity of the solution that results when 125 ml of .200 M HCL is diluted to 1.00L
Molecular weight and mole concept explained in this solution, The molecular weight of NaOH is 40. the molecular weight of a widely used buffer, HEPES, is 255
Aluminum reacts with hydrochloric acid to produce aluminum chloride and hydrogen gas. If 927 mL of hydrogen gas is collected by displacement of water at 740.0 mm Hg and 20. °C.
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