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Problem- A solution is made by dissolving 15.0g of HNO3 in 700.0mL of water. Calculate the pH of the solution. If 0.0300g NaOH is added to 250mL of this HNO3 solution, what will the pH be after mixing the 250mL of HNO3 and the solid NaOH together? Assume the addition of the NaOH does not change the volume
I want you to clarify the chemistry in this above problem.
a female needs to take ibuprofen of 375mg twice daily. the pills in the bottle are each 250 mg. determine how many
What is the molar concentration of chloride ion in the final solution? (assuming complete dissociation) 2) What is the percentage yield if 122.5 mg of a light blue-green solid is collected after 100.00 mL of this solution is combined with 25.0 mL ..
the unit cell in a crystal of diamond belongs to a crystal system different from any we have discussed. the volume of a
Determine the molar solubility of BaF2 in a solution containing 0.0750 M LiF. The Ksp for BaF2 is 2.45E-5.
What is the mole fraction of NaCl in this solution. what would be the vapor pressure of this solution at 45C? The vapor presssure of pure water is 23.8 torr at 25C and 71.9 torr at 45C
Hom much .200M KOH is required to completely neutralize
suppose 532 ml of neon gas at 20c and 1.04 atmospheres and 376 ml of sf6 gas at 20c and 0.97 atmospheres are put into a
A 16 ounce specialty coffee drink contains 216 mg caffeine. If all the caffeine is extracted and dissolved in an equal amount of water, what is the pH of the solution. What is the percent ionization.
Optically pure 2-octyl sulfonate, a compound with a leaving group comparable to the tosylate and mesylate groups discussed in this chapter, was treated with varying mixtures of dioxane and water as solvent
It required 105 s for 1.0 L of the gas to effuse. Under identical experimental conditions it required 31 s for 1.0 L of O2 gas to effuse. Calculate the molar mass of the unknown gas.
Draw the structure of the peptide WRCFQ. Show the ionization state that would be the major form at pH 7. (Note: this question addresses your knowledge of the one or three letter codes for amino acids,
A 2.51 g ore sample dissolved in acid required 28.62 mL of 0.0821 M KMnO4 to reach the equivalence point. Calculate the mass percent of iron in the ore.
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