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Describe Lavoisiers experiment with mercury. How does this experiment show the law of conservation of mass?
Student prepared .10M solution of formic acid and found it's pH at 25 Celsius to be 2.38. What is the pKa of formic acid at this temperature?
A 270- flask contains pure helium at a pressure of 755 . A second flask with a volume of 485 contains pure argon at a pressure of 727 torr.
as ph decreases h increases and solubility increases. the effect of ph on solubility is dramatic. a saturated solution
What is the solubility of lead fluoride in a solution of 0.050 M of sodium fluoride?
for the following processes at 700 degrees celcius what is the partial pressure of each gas if the total pressure is
Give the formula of a product derived from the first-named substance that may be formed in the following reactions. Note, in the example that any lower oxidation state compound is possible
a certain first-order reaction has a rate constant of 7.50times10-3 at 45 . how many minutes does it take for the
A student used a DCP solution (standardized to 9.94x10-4M) to analyze a sample of extract from 3.50g of solid food. The titration required 22.49mL of DCP. 91.75% of all the ascorbic acid in the food was collected in the extract. (MM Ascorbic Acid ..
What is the molarity of the resulting solution when 28.249 g of Mn(ClO4)2 · 6 H2O are added to 550.0 mL of water?
The compound known as butylated hydoxytoluene, abbreviated as BHT, contains carbon, hydrogen, and oxygen. A 1.376 g sample of BHT was combusted in an oxygen rich environment to produce
a anaerobic bacteria living at the bottom of a shallow inlet to a salt marsh are generating hydrogen sulfide as a by
A buffer is prepared by mixing 184 mL of 0.442 M HCl and 0.500 L of 0.400 M sodium acetate
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