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Question- A sample of O2 gas is stored at 30.0 C and 755 torr. If the volume was 125 mL, how much did the oxygen weigh?
I require skilled aid to answer the given problem
The enantiomeric excess of a mixture of two enantiomers is 82% , with an excess of the (S)-enantiomer. The optical rotation of the pure (S)-enantiomer is +21 °. What would be the observed optical rotation of the mixture
A solution of salicylate dianion is prepared by mixing 0.158 g of reagent grade acetylsalicylic acid in 5 mL of 1 M sodium hydroxide and heating the mixture until all of the solid dissolves.
From the following chemical equation determine how many grams of Ca(OH)2 you would need to react with 6.26 moles of HBr. How many grams of water will be made
when 2.55 g of an unknown weak monoprotic acid ha molar mass 85.0 gmol is dissolved in 250.0 g of water the freezing
What is the product of the reaction. It always seems to lose format after I post. The the CH3 is attached to the last CH. and CH3I (excess) is suppose to be above the arrow.
when aluminum is heated in oxygen, aluminum oxide is formed. What weight of the oxide can be obtained from 25.0g of the metal.
solution containing the iron(II) thiocyanate complex is 0.45, Then calculate the mile per liter concentration of the complex
Calculate the solubility (in M units) of ammonia gas in water at 298 K and a partial pressure of 7.50bar . The Henry's law constant for ammonia gas at 298 K is 58.0 M atm and 1 bar = 0.9869 atm.
Derive the fractional compositions for monoprotic and diprotic systems showing the steps as clear as possible including a brief description of a fraction compostion plot.
A mix of p-methylstyrene, p-methoxystyrene and p-cresol is run using colmn chromatography.
Draw thw active site of an enzyme that contains a macrocycle coordinated to a transition metal. Explain the function of the enzyme
The liberated NH3(g) is absorbed by adding 50.00 mL of H2SO4(aq), which is more than enough. The excess acid requires 19.90 mL of 0.5510 M NaOH for its complete neutralization. What is the percentage of protein in the meat?
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