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Air at 290°K and 105 P a approaches a normal shock. The temperature downstream of the shock is 540°K. Find:
(a) The velocity downstream of the shock.
(b) The pressure change across the shock, and compare it with that calculated for an isentropic flow with the same deceleration.
Determine how many grams of methane is required to form 43.0 grams of CHCl3?
if a molecule of a neon gas travels at an average of 400.m/s at a given temperature, estimates the average speed of a molucule of butane gas, C4H10, at the same temperature.
Calculate the concentration given the absorbance. Each test tube has 5ml of water then a certain amount of bromol blue. 1 ul bromol blue absorbs at= 0.092, 2 ul=0.105, 4ul=0.093, 10=0.199, 20= .225, 30= 0.592, 50=0.957, 100= 1.717.
Calculate the % ionization in a 0.3458 M solution of o-iodobenzoic acid. The Ka of o-iodobenzoic acid = 1.7 x 10-3.
Calcium fluoride dissociates in water per the equation shown below. in a pure solution of CaF2, what would the fluoride concentration be (in moles/L) when the calcium concentration is 0.25 moles/L
If a sodium hydroxide solution is prepared by dissolving it in a volumetric flask and diluting to the line with mixing, will the level be on the line, below the line, or above the line on the following day?
prepare 10 ml of solution that represents a 4 fold dilution of the stock solution
Give the structure of a compound that has a formula of C6H12O and has a triplet (3H 1.1ppm), doublet (6H, 1.2 ppm), quartet (2H 2.4 ppm) and septet (1 H,2.7ppm ) in the 1H NMR spectrum? Please explain how you figured it out.
Problem- Mix 25.0mL of 1.0M sodium acetate (NaA) to the 10.0mL of 1.0 acetic acid. With a pH of 5.19, calculate the acetate ion concentration [A-] and acetic acid concentration [HA] at equilibrium.
Problem- What is the pH of the solution obtained by mixing 30.00mL of 0.250 M HCl and 30.00mL of 0.125 M NaOH. Solve the above problem and provide steps with explanation
1. What happens to the value of the equilibrium constant for a reaction if the reaction equation is reversed? Multiplied by a constant?2. What is the effect of a change in volume on a chemical reaction (that includes gaseous reactants or products) in..
Explain, why you used sulfuric acid in the experiment, not HCl. (3) Give the structures and names (including description of stereochemistry) of three alkenes produced in dehydration of 3-methyl-3-pentanol.
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