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Please explain which of the following aqueous solutions has the strongest ion-dipole attractions: 0.3 M Na3PO4 .1 M NiF2 .2 M Rb2CO3 0.01 M Sr(OH)2 and .03 M ScBr3.
When aqueous solutions of lead nitrate and sodium iodide are mixed, a yellow precipitate of lead iodide is formed. Write the molecular, complete ionic
Hemoglobin has a mass of about 67,000 g/mol. It is 0.3335% iron by mass. How many iron atoms are in a molecule of hemoglobin?
Use the graph from the Introduction that plots the density of ethanol solutions from 20 to 60 mass percent to answer the following questions:
what the molarity of H2SO4 if 15.85 mL of the solution is needed to neutralize 1.00g NaHCO3 molar mass 84.01 g/mol
Write the rate expression for the reaction C) Calculate k for the reaction D) When [S2O8 2-] = 0.105 M and [I-] = 0.0875 M, what is the rate of the reaction at the temperature of the experiment?
2.00 moles of a gas occupies 62.2 L at a particular temperature and pressure. Its density is 0.900 g/L. The standard molar volume is 22.4 L/mole. What is the molar mass.
Use Excel or your favorite spreadsheet program to generate the concentration profiles. You may either estimate the stability parameters using the attached plots or (better) use the attached parameterized forms.
A layer of iron(III) oxide forms on the nail, increasing the nail's mass. How much oxygen has reacted with the iron if the mass of the nail has increased to 5.89 g?
An acetate buffer has a pH of 4.40. Which of the following changes will cause the pH to decrease?
what is the pressure exerted onto the closed end of an apparatus if the atmospheric pressure is 720 torr and the height of the water is 22.3 cm.
At what wavelength do you measure the change in absorbance to assay for enzyme X? Does the absorbance increase or decrease over time?
The flask was then shaken until the solution was uniform. A 25.0-sample of this glucose solution was diluted to 0.500 . How many grams of glucose are in 100. of the final solution?
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