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Calculate the pH of 50 ml of 0.1000 M methylamine solution after the following volume of 0.1000 M HNO3, where added 0
calculate the pH of a solution prepared by dissolving 2.05 g of sodium acetate, CH3COONa, in 78.0 mL of 0.25 M acetic acid, CH3COOH(aq). Assume the volume change upon dissolving the sodium acetate is negligible. ka of CH3COOH is 1.75 x 10-5
A strong acid is a corrosive substance that can cause skin burns. If a strong acid is accidentally
spilled on your arm, would you wash it with a strong base to neutralize the acid?
Which is the odd man out
(A) HCL
(B) NH³
(C) NO²
(D) CO
Distilled water is different from deionized water because
(a) distilled water is a product of condensed steam while deionized is filtered laboratory water
(B) distilled water is always pure and sold in pack while deionized water is not package for consumption
(C) distilled water is a condensed steam but deionized water is produce using exchange resin which absorb undesired ions
(D) distilled water is man made while deionized water is both natural and artificial
What weight of pure Na2CO3 should be taken so that about 25mL of approximately 0.1M HCl will be used in a standardization titration using methyl red end point?
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The arithmetic signs of qrev denote the loss heat by the of system and the gain of heat by the surrounding. since Tsys > Tsun in this case the the entropy change for the surroundings will be greater than that will give a por so the sum ASsys and ASsun OF positive value For ∆SunivThe arithmetic signs of qrev denote the loss heat by the of system and the gain of heat by the surrounding. since Tsys > Tsun in this case the the entropy change for the surroundings will be greater than that will give a por so the sum ASsys and ASsun OF positive value For ∆Suniv
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