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Question- A 1.00 L buffer solution is 0.250 M in HA and 0.250 M in KA. Calculate the pH of the solution after the addition of 100.0 mL of 1.00 M HCl. The Ka for HA is 3.5x10-4.
Please provide the answer of the given question on urgent basis
Complete the two half reactions for the Pt electrode. Write two correct Nernst equations for the cell voltage.
A mixture of 2.0 mol of CO(g) and 2.0 mol of H2O(g) was allowed to come to equilibrium in a 10.0L flask at a high temperature. If Kc-4.0, what is the molar concentration of H2(g) in the equilibrium mixture
Calculate the molarity of 464 mL of a solution that contains 135 g of sucrose C12H22O11
What is the final temperature of the water when equilibrium is reached? (Assume a density of 0.998 (g/mL) for water.)
The metal used to make the US nickel coin is an alloy of 75% copper and 25% nickel. What maximum mass of alloy could be produced if only 450 kg of nickel and 1180 kg of copper were on hand?
The heat of fusion of water is 335 J/g. How much heat would be required to melt 47.5 g of ice?
Suppose you have made 1L worth of a mixture of methanol and water, by mixing 3 parts of methanol and 2 parts of water by mass. Assume for simplicity that the volume of the mixture is exactly equal to the sum of the volumes of the ingredients (whic..
The fatty acid esters of glycerol in #1 undergo SAPONIFICATION when treated with aqueous NaOH to form soap. From the structure of fatty acid esters of glycerol that you wrote earlier, write the structure of the corresponding soap.
If 38.6 grams of hydrogen sulfide gas (H2S; MM = 34.08 g/mol) react with 36.3 grams of oxygen gas (O2, MM = 32.00 g/mol), what is the mass of sulfur dioxide (SO2, MM = 64.06 g/mol) gas produced
How much energy (in kilojoules) is released when 13.4 of steam at 122.5 is condensed to give liquid water at 71.5? The heat of vaporization of liquid water is 40.67 , and the molar heat capacity is 75.3 for the liquid and 33.6 for the vapor
Question- Mn crystallizes in the same type of cubic unit cell as Cu (FCC). Assume that the radius of Mn is 5.6% larger than the radius of Cu and the pcu - 8.98 g/cc calculate pMn. Please show me how to calculate this.
what is the molar mass of a nonpolar molecular compound if 5.52 grams dissolved in 36.0 grams of benzene begins to
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