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How can glycine act as a buffer at pH 6.00 and why? Please use chemical equations to show how it can act as a buffer at this pH specifically?
Air is about 78.0% nitrogen molecules and 21.0% oxygen molecules. Several other gases make up the remaining 1% of air molecules. What is the partial pressure of nitrogen in air at atmospheric pressure (1 atm)
At a given temperature, 1.40 atm of H2 and 2.03 atm of I2 are mixed and allowed to come to equilibrium. The equilibrium pressure of HI is found to be 1.305 atm. Calculate Kp for the reaction at this temperature.
HCL is a significant component of gastric juice. what is the concentration of chloride ion in gastric juice at pH=1.27?
A concentration cell consists of two Ni / Ni2+ electrodes. The electrolyte in half-cell A is 0.50 M and the electrolyte in half-cell B is 0.0025 M. Which combination below correctly pairs the anode and the cell voltage
Presume that when determining the volume of a pycnometer a student didn't notice there were air bubbles inside the pycnometer when it was filled with water. Explain what effect would this have on the determination of the pycnometer's volume
What volume of ethanol is contained in 35mL (1 fl. oz) of 86 proof liquor, which contains 43%v/v ethanol. *30 mL ethanol *43 mL ethanol *15 mL ethanol *37 mL ethanol
Question- What volume of aluminum (in cm3) with a density of 2.70 g/cm3 is required to have 6.02 g of aluminum?
Each of four compounds shown has one signal in the aromatic region and one signal in the alkyl region of its H NMR spectrum. Use the integral values to determine which compound's H NMR spectrum is shown below
a. it is stated that little or no dinitration is observed in the nitration of methyl benzoate. however if the reaction
the temperature is held constant at 294 K. After two hours the pressure inside the bottle falls to 721.3 torr. What mass of molecular oxygen has the mouse consumed
Problem- A solution is prepared by addind 3.6 mol of KCN to 1.00 L of 0.16 M Zn(NO3)2. What is the equilibrium concentration of Zn2+ ions. (Kf=4.2x10^19 for Zn(CN)4^-2
How many moles of H3O+ must be added to one liter of a solution to adjust the pH from 8.54 to 5.58? Use E notation and 3 significant figures.
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