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What is the percent, by weight, of oxygen in NiSO4 ⋅7H2O?
Select one:
a. 14.846b. 39.875c. 43.273d. 49.531e. 62.661
Assume you dissolve 2.56g of malic acid, C4H605 in half a liter of water (500g). Calculate the molarity, molality, mole fraction, and weight percentage of acid in the solution.
How much of this compound must be weighed to make 175.0 mL of a 0.15 M solution? How many mL of the 0.15 M solution should be diluted to prepare 150.0 mL of a 0.050 M solution
Calculate the molarity of the ions present in these salt solutions. Assume each salt to be 100% dissociated. Please show all work.
Estimate the vapor pressure at 45 degrees C using the Clausius-Clapeyron equation and the two given data points.
when the following equation is balanced using the smallest possible integers what is the exponent of n2o in the
A buffer solution contained 0.135 M HCO2H and 0.215 M HCO2Na and had a pH of 3.95. What is the final pH of the solution if 5.00 mL of 1.00 M NaOH was added to 100. mL of this solution
The kidneys function to eliminate ammonia from the blood. Based on the pK value, what is the molecular form that predominates in the blood? Could this molecule easily diffuse through th ehydrophobic lipid membrane of a kidney cell? Explain.
What minimum mass of succimer in milligrams is needed to bind all of the lead in a patient's bloodstream. Assume that patient blood lead levels are 0.530 mg/L , that total blood volume is 5.0 L , and that 1 mol of succimer binds 1 mol of lead.
when liquid water is introduced into an evacuated vessel at 25deg c some of the water vaporizes. predict how the
What is the age of the wine in the glass on the left, and the glass on the right? b. What assumption(s) do you have to make in order to compare their tritium counts?
A 2.53g of solid NaOH is dissolved in 100g of water in a coffee cup calorimeter, all the reagents initially being at 20 degrees Celsius. Calculate the final temperature of the solution obtained, given the fallowing information: NaOH (s) ----> NaOH..
Suppose you want to cook pasta in boiling, salty water. What is effect of salt (NaCl) addition to water on the boiling point temperature of the resulting solution?
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