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These are characteristics of the titration curve for 25.0 mL of 0.400 M NH3(aq) titrated with 0.335 M HI(aq). (For NH3, Kb = 1.8x10-5.) (1a) The initial pH : (1b) The volume of HI(aq) required to reach the equivalence point : (1c) The pH at the half-neutralization point. (1d)The pH at the equivalence point.
30 mL of 0.25 M acetic acid are titrated with 0.05 M KOH. What is the volume of KOH needed to reach the equivalence point. A. 0.15 mL B. 150 L C. 150 mL D. 1.5 L
find out the ΔH rxn for the given reaction as C 3 H 4 (g) + 2 H 2 (g) → C 3 H 8 (g)
Draw the Lewis Structure for a Nitrate Ion (NO3-1). Assign the formal charge for the central atom, Nitrogen. What is that formal charge
Balance the following reactions. You may have to supplement the reaction with H+, H2O, or OHdepending on the reaction conditions
When equilibrium is established, it is found that the partial pressure of ammonia has increase by 12.4%. Calculate K for the decomposition of NH4HS at 25 degrees C.
Nickel nitrate and potassium carbonate react to form nickel carbonate and potassium nitrate. How many milliliters of 0.55M Ni(NO3)¬2 are needed to react with 85 mL of 0.25M K2CO3? First, write a balanced equation.
Given Data: average number of drops/mL = 73.0; overall average diameter of oleic acid film = 38.0 cm. Use this data to calculate following:
graduated cylinder contains 155 of water. A 19.0 piece of iron (density = 7.86 ) and a 18.0 piece of lead are added. What is the new water level in the cylinder?
Determine what would be the concentration of the final solution If you take a ten mili litres portion of the stock solution and dilute it to a total volume of 0.250 Litres,?
Although the use of absorbances at 450 nm provided you with maximum sensitivity, the absorbaces at, say, 400 nm or 500 nm are not zero and could have been used throughout this experiment. would the same value of K be obtained at one of these wavel..
A mixture of 1.07 g H2 and 1.50 g He is placed in a 1.00-L container at 30.°C. Calculate the partial pressure of each gas and the total pressure.
How many mL of a 0.10 m solution of NaOH are needed to completely react with 120 mL of a 0.15 m solution of H2CO3.
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