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D-maltose is a disaccharide and D means the OH on the second to last carbon to the bottom is on the Right and L means left how do we draw a structure of D-maltose or alpa-D-maltose
the NaOH solution is required to reach the endpoint in the titration of a 7.248 sample of vinegar. What is the mass percent of acetic acid in this vinegar sample?
C7H6O3 + CH3OH --> C8H8O3 + H2O In an experiment 1.50 g of salicylic acid (C7H6O3) is reacted with 11.20 g of methanol (CH3OH).
determination of the partial pressures of the gases.a mixture of cs2nbspg and excess o2nbspg is contained in a
calculate the molality m of a 7.25 kg sample of a solution of the solute ethanol dissolved in the solvent water if the
The equilibrium constant, Kp, for the following reaction is 0.497 at 500 K: PCl5(g) PCl3(g) + Cl2(g) Calculate the equilibrium partial pressures of all species when PCl5(g)
what would be the formula for the compound sample if a sample of a compound contains 1.36 mol of nitrogen atoms and
Calculate the concentrations of all species in a 0.750 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
determine how do you find out the new freezing point of a solution ifnbsp given the formula is delta t m x kf x i but
The radioactive decay of Tl-206 to Pb-206 has a half-life of 4.20 min. Starting with 3.70 1022 atoms of Tl-206, calculate the number of such atoms left after 38.0 min.
Determine the mass of acetamide present per kg of water if the freezing point of this solution is 0 °C. (The freezing point of pure water is 0°C (exactly) at 1 atm pressure and the molal freezing-point-depression constant for water is 1.86°C/m.)
Show the bond angles which are at least slightly different that are shown by the H2CCBr2 molecule.
Assume that this rate remains constant for a short period of time What is A 5.00min after the reaction is started? At what time after the reaction is started will A= 0.565M?
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