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Calculate the mass of solid ascorbic acid (C6H8O6) needed to prepare 100 mL of a 0.200M ascorbic acid solution.
How much heat is absorbed by 15.5g of water when its temperature is increased 20.0C to 50.0C?The specific heat of water is 4.184J/(g.C)
Suppose of nickel (II) bromide is dissolved in of a aqueous solution of potassium carbonate. Calculate the final molarity of bromide anion in the solution
How would you prepare 350. ml of a 0.1 M solution of NaOH from pure pellets. From 95% pure pellets
Given that the goal is to allow all vehicles to come safely to a stop before reaching the intersection, calculate the maximum desired speed limit. Round your answer to the nearest whole number.
A weak acid, HA has a pKa of 4. In a buffer, the ratio [A-]/[HA] = 10^-2. What is the pH of the solution
At a certain temperature the equilibrium constant for the subsequent chemical equation is 3.30. At this temperature, compute the number of moles of NO2(g) that must be added to 2.86 mol of SO2(g) in order to form 1.30 mol of SO3(g) at equilibrium.
How do you tell whether a solution is basic, acidic or neutral just by looking at the formula? Like KCl. I need to know how to figure out whether it's neutral, basic or acidic and have no clue how this is done.
Identify the chemical components and the proportions necessary to achieve a buffer with the desired pH. Include relevant calculations in your answer.
Question- Will 28.7 grams of SiO2 react completely with 22.6 grams of H2F2? If not, state which is the limiting reagent.
A copper, Cu(s), electrode is immersed in a solution that is 1.00 M in ammonia, NH3, and 1.00 M in tetraamminecopper(II), [Cu(NH3)4]^{2+}. If a standard hydrogen electrode is used as the cathode, the cell potential, Ecell, is found to be 0.081 V a..
Express your answer in condensed form in order of increasing orbital energy. Write out the electron configurations for:
Draw and name the six ethers that are isomeric with C5H12O. Which of them are Chiral.
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