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A 4- g mass of NaOH is dissolved in 5 mL of water.? a What is the approximate molar concentration of the NaOH? b. In Part A. 3, a 4- mL aliquot of this solution is diluted to 500 mL of solution. What is the approximate molar concen-tration of NaOH in the diluted solution? c. Part A. 4. Calculate the mass of KHC8H4O4 ( molar mass 204.44 g/ mol) that reacts with 15 mL of the NaOH solu-tion in Part A. 3. NaOHsolu-tioninPartA.3.
Given the values of DGfo given below in kJ/mol, calculate the value of DGo in kJ for the combustion of 1 mole of propane to form carbon dioxide and liquid water.
A mixture of CuSO4 * 5H2o and MgSO4 * 7H2O is heated until all water is lost. If 5.020g of the mixture gives 2.988g of the anhydrous salts, what is the percent by mass of CuSO4 * 5H2O in the mixture
If 3.8kcal of energy is released when 1 gram of glucose is combusted, how many kcals are released when 0.689 moles of glucose are combusted
An unknown gas Q effuses 1.33 times as fast under the same conditions as Xe gas. What is the molar mass (g/mol) of Q
Do not delete any of the atoms or bonds in the ring or directly attached to the ring with the Erase button, and do not move atoms or groups directly attached to the ring by dragging them.
A 357 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 625 mmHg. Calculate the moles of Ar present.
Why is it necessary to first "process" the broccoli before preparing the test sample? What factors are affected that will adversely influence
What is the single-particle collisional frequency (for diatomic Nitrogen)at sea level, with 341 and 1.0 atm. The corresponding single-particle collisional frequency is reported as 10^10 s^-1.
What volumes of the stock solution will you have to pipet into the flasks to prepare standards of 1.00, 2.00, 5.00 and 10 x 10 -3 M KMnO4 solutions?
determine the freezing point depression, delta Tf, for the ionic solution. b. determine m effective for ionic solution. c. determine the van't Hoff factor, i, for the ionic compound.
Calculate the minimum energy a photon must have to produce an electron hole pair in an extrinsic semiconductor of band gap 1.0 electron volts.
The active site of an enzyme is a small portion of the enzyme molecule. What is the function of the rest of the large molecule
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