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Explain what are the mole fraction of NaCl and water (solvent) in a 2.25M NaCl water solution? Density of this solution is 1.086g/ml.
A sample of 2-butanol has a specific rotation of +3.25. Determine the %ee and the molecular composition of this sample. The specific rotation of pure (+)-2-butanol is+13.0.
considering the given equation cah2s 2h2ol caoh2aq 2h2g determine how many grams of cah2 are required to generate 145
When 20.0 grams of water is cooled from 20.0 Celsius to 10.0 Celsius, the number of Joules of heat released is
The decomposition of hydrogen is a first order reaction with a rate constant of 2.7 x 10^5s^-1 at 25 C. Assuming the initial concentration of H2O2 is 0.75 M. Determine (a) the concentration of H2O2 after 1.5 h, and (b) the time (in h) or the conce..
If ethyl benzoate is treated with phenyl magnesium bromide (1:1) ratio, a one to one mixture of ethyl benzoate and triphenylmethanol are obtained after work-up instead of just benzophenone which might be expected.
If the yellow molecules have a molecular mass of 50 {\rm amu}, what is the molecular mass of the blue molecules
The measured cell voltage is 0.0841 V and the Pt | H2 | H+ half-cell is the cathode. Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the p..
plot the titration point. make sure there is enough data. F. what indicator wouldyou use for this titration. what color change would you observe.
At equilibrium, the concentration of A is 0.381 M and that of B is 0.154 M. What is the value of the equilibrium constant, Keq?
Ammonia is produced industrially from the reaction of nitrogen and hydrogen. Write the balanced chemical equation for this reaction, and determine the largest mass of NH_3 that could be produced from the reaction of 105 g of N_2 and 15.0 g of H_2.
What is the pH of a solution that results from diluting 0.30 mol acetic acid (CH3CO2H) and 0.20 mol sodium acetate (NaCH3CO2) with water to a volume of 1.0 L?
Hydrochloric acid reacts with zinc metal to form zinc chloride and hydrogen gas. If 345.2 g of zinc metal reacts with 231.6 grams of acid. How many liters of hydrogen gas are produced? How many moles of zinc chloride are produced?
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