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Explain what are the concentrations of H3Cit, H2Cit-, and HCit2- in a sample of lemon juice that has a pH of 2.30 and a total concentration of the four citrate-containing species of .350 M? Presume that [Cit3-] is 0. Explain what is the concentration of Cit3-?
a 325 ml sample of solution contains 25.3 g of CaCl2. calculate molar concentration of Cl- in this solution
An element has an atomic number of 114 and an atomic mass of 285. How many protons, neutrons, and electrons does a neutral atom of this element have
24.4 grams of metal was heated in boiling water and then dropped in a calorimeter containing 100 grams of water. The temperature before the metal was dropped in was 23 C and the final temperature was 25.1 C. specific heat
an aqueous solution is prepared by diluting 3.30 ml acetonech3coch3 d0.789 g ml with water to final volume of 75.0 ml.
One radio station operates on an assigned frequency of 88.1 megahertz while another operates on an assigned frequency of 1460 kilohertz. What is the ratio of the larger to smaller value?
2000°C the equilibrium constant for the reaction is Kc = 2.4 103. 2 NO(g) N2(g) + O2(g) If the initial concentration of NO is 0.150 M, what are the equilibrium concentrations of NO, N2, and O2.
How many dimes do you need to buy as much candy as possible? How much should all these dimes weigh? How many pieces of candy could you buy? How much would this candy weigh? How many pieces of candy could you buy with twice as many dimes?
A circular storage tank in the san Ardo california oil field water treatment facility is 50 yards in diameter. Estimate how many barrels of fluid this tank could hold
Write net Brønsted equations that show the acidic or basic nature of the following substances, given the pH.
nbspan electric heater of 100 w 1w 1 js operates for nine minutes to heat the gas in a cylinder the gas expands. at
A sample of neon gas has a volume of 282 mL AT 160 degrees celsius. The sample is cooled at constant pressure to a volume of 685 mL. What is its new temperature?
chlorine triflouride gas at 708 mmHg and 50 degrees celcius. what is the mass (in g) of the sample?
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