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One liter of a solution of pH 9 has how many hydroxyl ions (OH-) than 1 L of a solution of pH 4?
A) 10,000 times more
B)1,000 times more
C) 100,000 times more
D) 5 times more
E) 100 times more
How much heat in kilojoules is evolved or absorbed in the reaction of 244.0g of calcium oxide with enough carbon to produce calcium carbide?
a 4 liter flask contains nitrogen gas at 25C and 1 atm. what is final pressure if 2 g of N2 gas are added and flask is cooled to -55C?
What is proton pump, proton matrix, proton gradient, and proton motive force? Please give simplies answer as possible.
to what general class of mechanisms does the attack of bromide ion br- on the cyclic bromonium ionbridged bromonium
What is the final temperature after 336J of heat energy is removed from 25.0g of Water at 19.6C
A child has a dangerous blood lead level of 120ug/100mL. If the child is administered 100 mL of 0.10M Na2 Ca(EDTA), assuming the exchange reaction
Examining the experimental setup, the students finds an air pocket between the stopper at one end of the U-tube and the electrolyte solution inside the tube
what is the presentage compostition of both of the components, which is the limiting reagent (if there is) and what is the theoretical yeild of each of them.
Repeat for 0.1 M Zn^2+ in 3 M OH- 3. What is the appropriate % if complexed iron in a 0.1 M Fe3+ solution containing 1 M KSCN?
when separated from a water solution cuso4 forms a hydrate with 5 water molecules per formula unit. if 36 g of
The rate constant for a reaction is 1.6 x 10^-2 s^-1 at 680k and 4.6 x 10^-2 s^-1 at 890 K. What is the activation energy?
The degree of unsaturation, or index of hydrogen deficiency, is the number of pi bonds plus rings in a molecule. Specify the degree of unsaturation (index of hydrogen deficiency) of the following formulas
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