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1) An acid has a ph=4 calculate the H30+
2) The ph of a solution is 10 compute the concentration of H30+
3) State an equation showing the ionization of a strong acid in h20.
4) If 25cc of .1M HCL is titrated with 10cc of .1M Naoh, Explain what is the ph of the acid show all calculation.
Identify the oxidizing agent and reducing agent
The element X occurs naturally to the extent of 20.0% superscript 12X and 80.0 % superscript 13X. The atomic mass of X is nearest:
determine the renal extraction ratio for CHF patients it CHF reduces renal function by 1/2 and state and give explanation which is the more abundant isotopic form of copper.
A block of dry ice of dimensions 25 cm x 25 cm x 25 cm is left to sublime in a closed chamber of dimensions 4.00 m x 5.00 m x 3.00 m. The partial pressure of carbon dioxide in this chamber at 25 C will be
an 8.89 g ice cube initially at -12oc is placedin a closed insulated container. a heater adds 600w for 45
The density of ethanol is 0.789 g/cm3. What is the density of the object?
A compound has the empirical formula C5H12O. Upon controlled oxidation, it is converted into a compound of empirical formula C5H10O, which behaves as a ketone. Draw possible structures for the original compound and the final compound.
Write a complete mechanism for the addition of diethyl malonate to ethanal in the presence of base to form a beta-hydroxy ester.
Pure water containing no arsenic was spiked with .40micrograms arsenate/L. Seven replicate determination gave .39 ,.40, .39, .41, .36, .35,.and .39 microgram/L. Find the mean percent recovery of the spike and the concentration detection limit
How much heat is required to melt 15 grams of ice at 0C? How much heat is released when 100 grams of steam condenses at 100C? If a system of ice and water has a mass of 12 grams
Calculate the pH of a buffer solution made by mixing 44 ml of a 0.10 M ammonia solution with 58 ml of a 0.10 M ammonium nitrate solution. Give the pH to two decimal places.
using a sample of a compound containing only oxygen and chlorine reacts with an excess of h2 gas to give 0.206 g
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