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Ascorbic acid (vitamin C) contains 40.92% carbon, 4.58% hydrogen, and 54.50% oxygen by mass. Assume a 100-g sample of ascorbic acid.How many moles of carbon, hydrogen, and oxygen are present in a 100-g sample of ascorbic acid?
When measuring horse radish peroxidase you found that a purified preparation has a specific activity of 10mmolar/sec/mg protein. suppose you added to an assay a competitive inhibitor that would not produce a colored product.
A buffer solution is prepared by adding 15.00 g of sodium acetate ( NaC2H3O2) and 12.50 g of acetic acid to enough water to make 500 mL of solution.
Write the condensed structure of the primary alcohol (RCH2-OH type) with the general formula C4H10O.
Rubidium-87 decays by beta decay with a half-life of 4.9 x 10^10 yr. How many 87Rb atoms are in a moon rock sample that has a rubidium decay rate of 3500 disintegrations per hour
How many L. of N2 gas are produced at STP when the airbag inflates if the airbag contains 132 g. of Sodium Nitride?
If the O2 gas present in 7.30 L at STP is changed to a temperature of 17 degrees Celsius and a pressure of 788 Torr, what will be the new volume?
Calculate the pH of a solution formed by mixing 250.0 mL of 0.15 M NH4Cl with 100.0 mL of 0.20 M NH3. The Kb for NH3 is 1.8 x 10-5.
If a 0.10mL volume of oil can spread over a surface of water of about 32.0m^2 area, calculate the thickness of the layer in centimeters. Enter your answer in scientific notation.cm?
What is the condensed structure of ibuprofen and names of the functional groups present in molecule
Calculate the wavelength at which this vibration will be found in the anti-Stokes scattering from a nitrogen laser(337nm).
Consider the reaction when aqueous solutions of sodium sulfide and manganese(II) sulfate are combined.
During the saponification of ethyl tetradecanoate, would you expect the product to generate foam/froth when mixed
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