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An ammonia buffer solution contains 0.19 M N H 4 and 0.20 M N H 3 . The pKa of ammonium is 9.24. What is the pH of the buffer
Answers: 2
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Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride
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How many moles of sulfur dioxide are in 2.26 Ă— 10^33 sulfur dioxide molecules?
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Two changes are described below. a green banana turns yellow and ripens. a layer of rust forms on an iron nail. which statement is true about the two changes? a) both are chemical changes because new substances are formed. b) both are physical changes because only the physical state of the substances change. c) a is a physical change due to a change of state, but b is a chemical change because new molecules are formed. d) a is a chemical change due to a change of state, but b is a physical change because new molecules are formed.
Answers: 1
An ammonia buffer solution contains 0.19 M N H 4 and 0.20 M N H 3 . The pKa of ammonium is 9.24. Wha...
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