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Lactic acid (HCH3H5O3, Ka = 1.38 x 10-4) gives yogurt its characteristic tangy taste. What is the pH of a solution of 40.0 mL of a 0.88 M lactic acid solution after it has been titrated with 17.6 mL of a 2.0 M standard solution of KOH?
Calculate the energy for the transition of an electron from the n=3 level to the n=7 level of a hydrogen atom.
iodine trichloride icl3 will react with a chloride ion to form icl4 negative. identify the lewis acid and lewis base.
While cleaning the organic stockroom, a student found a bottle of ethanol labeled "Denatured with Benzene." He decided to determine the concentration of benzene in the ethanol by acquiring the UV spectrum of the liquid in a 2.0 cm cell.
It is given that a mixture of argon and hydrogen, occupying a volume of 1.18L, 894.6mmHg and 44.1*C has a mass of 1.25g. what is the partial pressure of argon
A further, more detailed, analysis shows the compound to be 40.3% B , 52.2% N, and 7.5 H " all mass percent", what is the molecular formula of the substance
Question- What does the NMR instrument do when each of the following commands are typed at the console? (a) rga (b) ft and (c) zg.
What is the maximum number of phases that can be in mutual equilibrium in a four-component system
Compare the experimental mole ratio of NaHCO3 to NaCl with the theoretical mole ratio. Explain the difference. The experimental mole ratio is 1:1.
Complete the following table for an ideal gas
Why we have a decrease in in the volume of the crude organic product during the extraction with HCl. What causes this decrease
Four samples of gas - O2, CO2, Ar, and He - are available at the same temperature. Rank the gases in increasing order of their particles' average velocity, beginning with the slowest.
what fraction of the day's energy does walking one hour represent? How many kilograms of water would have to be evaporated if this were the only means of heat loss?
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