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1. If the base buret were not rinsed with NaOH prior to filling, would the calculated normality of the base be TOO HIGH, TOO LOW, OR UNAFFECTED? WHY?
2. If the vinegar buret tip were not filled with solution before its initial reading was taken, would the calculated normality of the acid be TOO HIGH, TOO LOW, ORUNAFFECTED? WHY?
3. The active ingredient in Philips Milk of Magnesia is Mg(OH)2, in Amphojel is Al(OH)3; and in Aka-Seltzer is NaHCO3. Write balanced net ionic equations showing how each neutralizes stomach acid. (You can answer this question because it is a review of the "IonicChemical Equations" lab you did in Chem 1 A)
Problem- The equilibrium constant, K, for a neutralization reaction can be symbolized as Kn. Using Kw, Ka, and Kb values, determine Kn for the following reaction at 25° C.
a first order decomposition reaction has a half-life of 43.3yr. what is the rate constant of the reaction in yr-1? give
calculate th eapproximate freezing points of the following aqueous solutions (assume complete dissociation) a. 0.800 m NaCl b. 0.800 m
A chemist wanted to determine the concentration of a solution of lactic acid, HC3H5O3. She found that the pH of the solution was 2.59. What was the concentration of the solution.
Disregarding any other losses and treating the animal as a closed system, what was the change in internal energy of the animal?
A student failed to standardize his NaOH solution with KHP. Instead, he calculated the NaOH solution concentration from the mass of NaOH his laboratory instructor dissolved to prepare the solution.
What is the mole percent of ethanol C2H5OH which consists of 71.0g of ethanol for every 18.3grams of water present
Chlorine was previously identified as a catalyst in the breakdown of ozone into oxygen gas. Using the enthalpy of reaction for two reactions with ozone, determine the enthalpy of reaction for the reaction of chlorine with ozone.
Explain a current of 4.54 A is pass through a Pb(NO3)2 solution for 1.50 hours. Explain how much lead is plated out of the solution
How do you solve for the molarity, molality, or mass percent of solute while only given two other bits of information
a 1.0 l solution has a mixture of 0.05 m nah2po4 pka 6.86 and 0.10 m na2hpo4. how much 1.0 m naoh should be added to
The half life of potassium-40 is 1.26X10^9 yrs, if the natural abundance of k-40 is .010% and 3500 disinigrations of k-40 occur every 10 sec in a human body weighing 100kg then what is the concentration of potassium (include all isotopes) in that ..
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