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Sodium phosphate dissociates when it dissolves in water. Given the concentration of the solution is 0.029 mol/L, calculate the concentration of the sodium ions and the phosphate ions.
Calculate the pH of 1.00 L of a buffer that is 0.130 M HNO2 and 0.190 M NaNO2. What is the pH of the same buffer after the addition of 1.00 mL of 12.0 M HCl. (pKa of HNO2 = 3.40)
When doing an experiment why is the measured pH not the same as predicted by the Henderson-Hasselbalch equation?
1. when 14.25 g of magnesium was heated in air 23.61 gof magnesium oxide was produced.a what mass of oxygen has
Question- A 25.0ml aliquot of vinegar was diluted to 250 ml in volumetric flask. Titration of a 50ml aliquot of the diluted solution requires an average of 43.88ml of 0.09600M NaOH. Calculate Weight Volume of acetic acid in the vinegar solution. Th..
Describe how the results from this control experiment would be incorporated into the data analysis to the correct for this error.
What mass of NaOH can this buffer neutralize before the pH rises above 4.00?
A reaction that occurs with large decrease in enthalpy and small decrease in entropy. D. A reaction that occurs with any size increase in enthalpy and any size decrease in entropy.
A method of analysis yields masses of gold that are low by 0.4 mg. Calculate the percent relative error caused by this result if the mass of gold in the sample is
How the return from war, and return to war, affected families and surrounding demographics how economic challenges might have affected your topic's experience; How the migrations of numerous social and economic groups during this time impacted you..
Compute the molarity of the final solution of Erythrocin B (MW 879.9 g/mol) if a .5028g sample is dissolved in water diluted to 100mL in a volumetric flask Solution 1, as well as then a 5mL aliquot of the stock solution is diluted to 100mL utilizi..
a piece of copper wire is 25 feet long and has a diameter of 2.0mm. copper has a density of 8.92gcm3.a how many mols of
What is the new volume in liters of the sample when the pressure is 2.0 atm and a temperature of 225 K?
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