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In order to buffer a solution at a pH of 4.57, how many grams of sodium acetate, NaCH3COO should you add to 500 mL of a 0.150 M solution of acetic acid (CH3COOH)?
4.57 g2.05 g4.11 g4.50 g8.20 g
A solution is prepared by mixing 75.0 mL of 5.00 M HCl and 40.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+], [OH -], and the pH for this solution.
as we know that innbsp haber-bosch process hydrogen gas reacts with nitrogen gas and form ammonia according to this
For a general reaction order n, determine the rate equation, the variables to be plotted to obtain a graph with a linear slope equal to the rate constant k (or -k), and an expression for the ½ life
The electron in a hydrogen atom falls from an excited energy level to the ground state in two steps, causing the emission of photons with wavelengths of 2624 nm and 97.2 nm, respectively.
Draw a formula for the lowest molecular weight compound that contains C, H, and possibly O or N, is a chiral compound
you want a solution that will buffer the addition of either 10 micro moles of acid or 10 micro moles of base. total buffer concentration is equal to the concentration of the acid plus the concentration of salt in the acid. which of the following b..
Calculate the degrees of unsaturation in a compound with the molecular formula C3H6 and draw two possible structures
Phosphorus trichloride and phosphorus pentachloride equilibrate in the presence of chlorine: PCl3 (g) + Cl2 (g) ? PCl5 (g). At equilibrium, the pressures of the individual species are as follows: 0.202 atm for PCl3 (g), 3.45 atm for PCl5 (g) and 0..
The temperature of a sample of water increases from 21.9°C to 45.3°C as it absorbs 5669 J of heat. What is the mass of the sample.
The principal quantum number, n, describes the energy level of a particular orbital as a function of the distance from the center of the nucleus. Additional quantum numbers exist to quantify the other characteristics of the electron
if 488 g so2 escaped into the atmosphere and all the escaped so2 were converted to h2so4. how many grams of h2so4 would
how much water would be needed to completely dissolve 1.78 of the gas at a pressure of 730 and a temperature of 27? a
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