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If the temperature in the laboratory is 22.3oC and the atmospheric pressure is 0.931 atm, what volume would be occupied by the carbon dioxide produced in this reaction (in cm3)?
A solution of ethanol (C2H5OH) in water is prepared by dissolving 73.2 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution.
how many mols of H 2 can produce
Calculate the molecular rms speeds of He atoms at 10, 100, 1000 K in units of meters per second and miles per hour.
The density of a 50% solution of NaOH is 1.525 g/mL. What volume of a solution that is 50% by weight NaOH is required to make 1 Liter of 0.15M NaOH solution.
You have successfully purified a protein to homogeneity. From gel permeation chromatography studies, you determine that the protein has a molecular weight for 235,000 daltons.
Using a sample of a compound containing only oxygen and chlorine reacts with an excess of H2 gas to give 0.206 g water and 0.278 g HCl
A 47 kg sample of water absorbs 348 kJ of heat. If the water was initially at 28.7 C what is its final temperature.
Consider two DNA molecules: one 400 base pairs long, the other 800 base pairs long. Assuming that each is a rigid rod of diameter 25 Å, with a length of 3.4 Å per base pai.
2 Al(OH)3 + 3 H2SO4 → Al2(SO4)3 + 6 H2O. How many grams of Al2(SO4)3 are generated when 152 g of H2SO4 reacts.
What is the theoretical yield of SO 3 produced by the quantities described in Part A and How many Oxygen molecules are required to react with 7.82g of S?
Hydrogen phosphate buffer, Buffer solutions have the unique ability to resist changes in PH when an acid or base is added to them. One important buffer system that helps to maintain blood pH at a constant value of 7.4 is the hydrogen phosphate buf..
Calculate the basic buffer capacity of a solution of 50.00 mL of 0.334 M HC2H3O2 to which is added 50.00 mL of 0.154
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