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Wine goes bad soon after opening because the ethanol (CH3CH2OH) in it reacts with oxygen gas (O2) from the air to form water (H2O) and acetic acid (CH3COOH) , the main ingredient of vinegar. What mass of oxygen gas is produced by the reaction of 8.92g of ethanol?
The Adenine is a nitrogen-containing compound found in DNA and RNA. Suppose adenine has a composition of 44.5% C, 3.70% H, and 51.8% N, and a molar mass of about 135 g, define what is the molecular formula of adenine
Calculate the mass of glucose in a 110 sample of a 1.14 M glucose solution.
What volume will carbon dioxide originally 30.0 mL at 27°C have at 77°C
The molar heat capacities of iron and gold are 25.19J/molC and 25.41J/molC, respectively. What is the final temperature of the water and pieces of metal
How long will it take 10.0 mL of oxygen gas to effuse through a porous barrier if it has been observed that 81.7 minutes are required for 10.0 mL of Cl2 gas to effuse through the same barrier?
Can some one verbally explain the ideas of tunneling and reflection in the case of particles confronting an energy barier
A solution of NaF is added dropwise to a solution that is 0.0144 M in Ba^2+. When the concentration of F^- exceeds __________ M, BaF2 will precipitate. Neglect volume changes. For BaF2, K sp = 1.7 X 10^-6.
4500J of heat are absorbed by a calorimeter. The temperature of the calorimeter increases from 14c to 121c. Calculate the heat capacity of the calorimeter.
Why is the H-O-H bond angle in a water molecule (H2O) smaller than the H-C-H bond angles in methane (CH4)
An enzyme is complementary to the transition state - not to the substrate.- What happens to the energy of catalysis (DGcat) when an enzyme is truly complementary to its substrate?
Explain what is the percent yield of carbon dioxide if 3.5 g of butane C4H10 completely burns in excess oxygen as well as the observed mass of carbon dioxide that was collected is 8.4 g
Which of the following peptides has a pI close to 5.5? Assume that the pKa value of the alpha-amino group is 9.6 and the pKa for the alpha-carboxylate group is 2.3. A. Ser-His-Arg-Asn
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