How many milliliters (3 sig. figs.) of 0.950 M HCl should be added to 1.50 g of glycine amide to give a pH of 7.94?
How many milliliters (3 sig. figs.) of 0.950 M HCl should be added to 1.50 g...
Calculate how many milliliters (3 sig. figs.) of 0.500 M NaOH sould be added to 2.00 g of MOPSO (Table 8-2) to give a pH of 7.10.
How many milliliters of 12.0 M HCl should be added to 5.00 x 102 mL of 0.100 M Na2SO3 to produce a pH 7.00 buffer solution. For H2SO3 Ka1 = 1.39 x 10-2 and Ka2 = 6.73 x 10-8.
Calculate the volume, in milliliters, of a 0.490 M KOH solution that should be added to 4.250 g of HEPES (MW = 238.306 g/mol, pKa = 7.56) to give a pH of 7.94. KOH
A) How many milliliters of 0.15 M HCl would have to be added to 1.0 L of a buffer containing 0.25 M NH3 and 0.45 M NH4 to make the pH decrease by 0.05 pH unit? The Ka value = 5.6 x 10^-10. B) How many milliliters of the same HCl solution would, if added to 0.204 L of pure water, make the pH decrease by 0.05 pH unit?
How many milliliters of 0.109 M KOH should be added to 54.5 ml of 0.0142 M morpholine to give a pH of 8.92? SHOW CALCULATIONS AND CHEMICAL EQUATION
How many milliliters of 0.45 M NaOH must be added to 0.434 L of 0.015 M HCl to give a mixture with a pH of 3.00? mL
How many milliliters of 0.116 M HCl acid will be needed to neutralize 25.00 mL of 0.0840 M Ba(OH)2 solution? The glucose level of a patient was determined to be 130.0 mg/dL. How many milligrams of glucose would a 10.0 mL blood sample from this patient have? A laboratory analysis of aspirin determines the following mass percent composition: C 60.00% H 4.48% O 35.53% Find the empirical formula. A glass contains 50.0 mL of water. How many molecules of water...
How many grams of solid potassium nitrite should be added to 1.50 L of a 0.149 M nitrous acid solution to prepare a buffer with a pH of 4.139 ? grams potassium nitrite = g. How many grams of solid ammonium chloride should be added to 1.50 L of a 0.115 M ammonia solution to prepare a buffer with a pH of 10.250 ? grams ammonium chloride =
1. (10 pts) Calculate how many milliliters of 0.200 M HCI should be added to 6.49 g of sodium acetate dihydrate (NaOAc 2H20, FM 118.06) to prepare 150.0 mL buffer, pH 5.00. pKa of HOÁC is 4.756.
How many sig figs should the result of the following have? Xs are digits that are purposefully not given. 1X.36/(16.X1 - 11.2X)