what is the ionic strength of a buffet that is made to be 0.0997 M NaH2PO4...
The ionic strength of seawater is approximately 0.7 M. Briefly explain how ionic strength will affect, as an example, the dissolution of CaCO3 in seawater. Use free energy (DG), and chemical equilibrium, to explain your answer.
A -17nC charge is located at the origin. 1. What is the strength of the electric field at the position (x,y)=(0cm,5.0cm)? Express your answer using two significant figures. 2. What is the strength of the electric field at the position (x,y)=(?5.0cm,?5.0cm)? Express your answer using two significant figures 3. What is the strength of the electric field at the position (x,y)=(?5.0cm,5.0cm)? Express your answer using two significant figures
A 0.250 L buffer is made of 0.350 M [NaH2Po4] and 0.255M [Na2HPO4]. a. what is pH of this buffer? b. What is pH of this buffer after 0.012 mols of HCl is added? Please show work and all steps!!!!
what is the pH of a buffet solution that is made by dissolving 16.6 g of KClO in 495 mL of .355 M HClO? (total volune is 495 mL) 1. What is the pH of a buffer solution that is made by dissolving 16.6 g of KCIO in 495 mL of 0.355 M HCIO? (You can assume the total volume is 495 mL).
1. What is the relative ionic strength of a solution of calcium sulfate compared to a solution of sodium chloride. What is the main contributor to this difference? 2. List 2 salts each that should have similar ionic strengths to: a) sodium phosphate, and b) magnesium phosphate. 3. Calculate the ionic strength of a 0.500 M. solution of sodium phosphate, and of a separate solution of 0.500 M magnesium phosphate. Which has the greater ionic strength? 4. Briefly explain why...
a) What are the concentrations of Na2HPO4 and NaH2PO4 in a 0.30 M phosphate buffer solution pH 7.0? Use pKa 6.82 b) Describe how you would prepare 250 mL of the buffer in part (a) given that you have available to you a 1.0 M stock solution of NaH2PO4 and solid Na2HPO4(FW 141.96 g/mol). Provide your answer in milliliters of NaH2PO4 and grams of Na2HPO4. c) Suppose you use 100 ml of this buffer in an experiment and 0.003 mol...
What is the strength of the electric field at the position indicated by the dot in the figure(Figure 1) ? Express your answer using two significant figures. e = 7600 What is the direction of the electric field at the position indicated by the dot in the figure? (Assume that x - axis is horizontal and points to the right.) Express your answer using two significant figures. theta =
Calculate the ionic strength of 0.1125 M Fe(NO3)3.
Write the overall molecular equation, the total ionic equation, and the net ionic equation for the reaction of magnesium with hydrochloric acid. molecular equation: total ionic equation: net ionic equation: How many milliliters of hydrogen would be collected at a pressure of 755 torr and 23 degree C in a reaction between 0.540 grams of aluminum and an excess of hydrochloric acid? In this experiment, you were limited to two significant figures in your determination of the molar mass. Suggest...
Problem 20.11 Part A 2e, mass m = 6.6 × 10-27 kg) What magnetic field strength would be required to bend them into a circular path of radius Express your answer using two significant figures. 0.24 m? Alpha particles (charge q move at 1.3x106 m/s 四 B= Submit My Answers Give Up