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Depict the structures of glucose and pyruvate. Label the carbons in glucose 1-6. State the corresponding carbons in pyruvate remain in mind that each carbon in pyruvate will have two numbers
Determine the ammonia concentration of an aqueous solution that has a pH of 11.50. The equation for the dissociation of NH3 (Kb = 1.8 x 10-5) is
cortisone is a steroid used to treat joint inflammation. each cortisone molecule contains 21 atoms of carbon plus
A buffer is prepared by adding 3.00 g of sodium acetate (Formula Wt.=82.03g/mol) to 200 ml of 0.20 M acetic acid (Molec. Wt. = 60.053g/mol, Ka = 1.85x10-5). What will be the pH of this buffer. Assume adding the salt does not change the total volum..
Sample containing three organic compounds: a hydrocarbon (RH), carboxylic acid (RCOOH), and an amine (RNH2, organic compound with acid-base properties similar tammonia).
Complete the following reactions by replacing the question mark with the appropriate formula. Choose the correct enzyme or enzyme class.
Type the half-cell reaction that takes place at the cathode for the iron-silver voltaic cell. Indicate physical states using the abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively. Use (aq) for an aqueous solution. Do not forget..
Consider the following reactions and select the false statement below. CO2(g) + OH?(aq) ? HCO3?(aq) Cr3+(aq) + 6H2O(l) ? Cr(H2O)63+(aq) A. in Cr(H2O)63+ the Cr3+ is attracted to the H2O molecules via ion-dipole intermolecular forces
compressed gas cylinder contains 1.00 x 103 g of argon gas. The pressure inside the cylinder is 2050 psi at a temperature of 18oC. How much gas remains in the cylinder if the pressure is decreased to 650psi at a temperature of 26oC?
How many milliliters of 1.50 M H2SO4 are needed to neutralize 50.0 g of NaOH?
vitamin c l-ascorbic acid mw 176.0 gmol is a weak acid pka 4.863. suppose a 500.0 mg tablet is dissolved in water and
The best reagent or sequence of reagents for carrying out transformation A and transformation B are
What is the equilibrium concentration of SCN if the Kc=400 for the following reaction at equilibrium if the [Fe3+]=2.00E-3 M and FeSCN 2+ = 4.00E-1M
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