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Consider the titration of 50.0 mL of 2.0 M HNO2 (Ka = 4.0 x 10 -4) with 1.0 M KOH. At each step of the titration... a. write a reaction to show the initial reaction upon mixing b. construct and ICE table to represent the reaction ( should you use concentration or moles? c. determine the major species present after the reaction is complete d. calculate the pH of the solution COmplete these steps for the addition of 1.0 mL , 25.0 mL, 50.0mL, 100.0 mL , 110.0 mL and 1.0 M KOH.
Calculate the solubility in g/L of MgCO3 in the following solutions. (a) pure water (b) 0.0010 M Na2CO3 (Use the quadratic equation.) Calculate the molar solubility of AgBr in a 3.0 M NH3 solution.
Compute the activation energy for the flashing process. When At 29 o C the average rate is 3.3 flashes every 10 seconds; at 23 degree Celsius the average rate
A 50.00 ml sample of water was treated as above and the I2 titrated with 0.01136 M Na2S2O3, of which 8.11 ml were required to reach the end point. Determine the concentration of the dissolved O2 in M (moles/L) and ppm (mg/L).
Based on the solubility rules, which one of these is insoluble in water?
A mercury mirror forms inside a test tube by the thermal decomposition of mercury(II) oxide. 2 HgO(s) 2 Hg(l) + O2(g) Hrxn = 181.6 kJ (a) How much heat is needed to decompose 504 g of the oxide? kJ
how many grams of vinegar are required to react completely with 25.0g of baking soda.
A given mass of air occupies 900 ml at one atmosphere (760 mm) of pressure. What pressure must be applied to reduce the volume to 700 ml at constant temperature
At what wavelength do you measure the change in absorbance to assay for enzyme X? Does the absorbance increase or decrease over time?
How many grams of iron metal do you expect to be produced when 265 grams of an 84.5 percent by mass iron (II) nitrate solution reacts with excess aluminum metal?
It takes 27.22 mL of NaOH to reach the endpoint. What is the equivalent weight of the acid?
Given that the radius of the O2- ion is about 140 pm in most oxides, calculate the radius of Mg2+, in pm. Your solution should include a sketch one face of the unit cell of MgO to show how the edge length of the unit cell is related to the ionic r..
An atom of aluminum (Al) has a diameter of about 1.2 10-8 cm. (a) What is the radius of a(n) aluminum atom in Angstroms (Å)? Å What is the radius of a aluminum atom in meters
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