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An isolated sugar from a cereal sample is either C12H22O11 or C6H12O6. Burning 0.5576 grams of the isolated carbohydrate in a combustion analysis caused the mass of an ascarite CO2 absorber to increase by 0.8609 grams. Which compound has been isolated?
Name two organic compounds that cannot be extracted effectively from an aqueous solution by means of an immiscible organic solvent such as ether or cyclohexane.
Problem- Which compound of the following would you expects to have the lowest boiling point? My guess is c because I'm thinking that amines with more protons attached have more capabilities of hydrogen bonding thus higher boiling points so an amin..
Finding Number of Atoms in a Molecule from Molecular Weight, As determined from the gas law, the molecular weight of a substance is eight times the atomic weight
Boron has two stable isotopes 10B (mass = 10.012938) and 11B (mass = 11.009305). If the atomic weight of Boron is 10.811 Explain what are the isotopic abundances of each isotope
Why does an atomic absorption instrument not need a high resolution monochromator, but an atomic emission instrument does
How many molecules of each gas are present in 7.13 L of the sample at 58 degrees Celsius and 3.11 atm. Enter your answer in scientific notation.
Question- There is a titration of 25.00 ml of 0.200 M weak acid (ka = 4.2 X 10 ^ -6) with 0.250 M NaOH solution. 1. Calculate the pH of the initial weak acid solution above
If all the energy obtained from burning 1.09 pounds of propane is used to heat water, how many kilograms of water can be heated from 23.7 degrees celsius to 48.7 degrees celsius
What is the velocity of a singly charged benzene ion (m = 78 Da) after acceleration? e = 1.60 x 10^-19 C
A 25.00-mL sample of an unknown H3PO4 solution is titrated with a 0.100 M NaOH solution. The equivalence point is reached when 52.58 mL of NaOH solution is added. What is the concentration of the unknown H3PO4 solution? The neutralization reaction..
If you have an organic layer that contains an organic acid, an organic base, and a nautral organic compound, what is in the organic layer after complete treatment with NaOH(aq), followed by complete treatment with HCl(aq)
The following data have been obtained for oxygen gas at 273.15K. Calculate the best value of the gas constant R from them and the best value of the molar mass of O2.
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