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Problem- Show me how to find Kb given that the solution is .10M NaCH3CO2 , the pH is 7.31, and the [H+] is 4.90x10^-8.
Explicate the each step. Explicate the process and each step
Calculating the Moles of Aspirin, The molecular formula for aspirin is HC9H7O4, Calculate the molecular weight for aspirin
what mass of sucrose c12h22o11 should be combined with 494 g of water to make a solution with an osmotic pressure of
How would you prepare 25.0mL of 2.0M sodium phosphate from solid sodium phosphate. Na3PO4
A method for determining the quantity of dissolved oxygen in natural waters requires a series of redox reactions. Balance the following chemical equations in that series under the conditions indicated
A 4.80 g nugget of pure gold absorbed 279 J of heat. What was the final temperature of the gold if the initial temperature was 22.0°C? The specific heat of gold is 0.129 J/(g·°C).
Calculate the mass in grams for a sample of aluminum that absorbs 1.85 when its temperature rises from 65 to 178.
consider the distribution of ideal gas molecules among three bulbs a b and c of equal volume. for each of the following
Consider the reaction Cu2S + O2 → 2Cu + SO2. If 55.0 grams of Cu2S is heated in excess O2, what is the mass of Cu that can be produced?
how many milliliters of magnesium metal with a density of 1.74 gml are needed to produce 102.3 grams of magnesium
A photomultiplier tube detects photons by amplifying the current generated by the photoelectric effect. Which metal, lithium, calcium, aluminum or gold would you choose if you were trying to make a photomultiplier tube sensitive to the largest por..
When a sample of neon with a volume of 628 mL and a pressure
A volume of 60.0mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 24.7mL of 1.50 M H2SO4 was needed?
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