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Explain what volume (mL) of 0.170 M NaOH must be added to a 0.140 L solution of 0.015 M glycine hydrochloride (pKa1 = 2.350, pKa2 = 9.778) to adjust the pH to 2.11?
Find out which pKa value to use for glycine. To solve this problem, first set up a reaction table with a weak acid reacting with a strong base then utilized the Henderson-Hasselbalch equation to solve for the concentration of base (OH-).
Suppose that 1.419 g of impure barium hydroxide is dissolved in enough water to produce 213 mL of solution and that 40.4 mL of this solution is titrated to the stoichiometric point with 8.3 mL of 0.0696 M HCl(aq). What percentage of the impure sam..
graphite is an anisotropic conductor. it has high conductivity in the plane of the sheet and very low conductivity
If all the SCN- were not converted completely to FeNCS2+ when the calibration curve was prepared, would this raise or lower the value of Keq
Explain what is more soluble, a solution of free histidine or a solution of histidine tetrapeptide at pH 6 net charge +2
when you performed flame test on the chloride salts of several metallic elementyou undoubtedly noticed that each
a variable-volume container filled with oxygen has a volume of 1.60 l at 1.00 atm and 25 degc. what will the volume of
If 6.40 multiplied by 10-9 mol of 176W emits 1.07 multiplied by 1015 positrons in 1.00 h, what is the decay constant
STP corresponded to conditions of "standard" temperature (T=0°C) and standard pressure (p= 1 atm). At STP, 1 L of Br2 reacts totally with 3 L of F2 to form 2 L of a product. What is the formula of the product?
Use standard heat of formation data to calculate the heat released per gram of B2H6 when burned with O2(g) to afford boric acid (H2BO3(s)).
The amount of nitrogen in an organic substance can be determined by an analytical method called the Kjeldahl method, in which all the nitrogen in the organic substance is converted to ammonia.
Calculate the partial pressure of each gas -black, gray and white- if the total pressure inside the following container is 720 mmHg
The atmospheric oxidation of nitrogen monoxide, 2 NO(g) +O2(g) 2NO2(g), was studied at some temperature withinitial pressures of 1.000 atm of NO and 1.000 atm ofO2. A tequilibrium PO2=.506 atm calculate Kp 2NO(g)+O2(g) 2NO2(g)
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