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When is the standard enthalpy of a reaction for which the equilibrium constant is doubled,when the temperature is increased by 10 K at 298 K?
The methylamine hydrochloride dissociates completely in water to form methylammonium ion (CH3NH3+) and chloride ion.
Tartaric acid is the white, powdery substance that coats sour candies such as Sour Patch Kids. Combustion analysis of a 12.01- sample of tartaric acid-which contains only carbon, hydrogen, and oxygen-produced 14.08 and 4.32.
An emission line in the hydrogen spectrum appears in the infrared region at 956 nm. What transition produced this line? Clearly indicate both nf and ni.
Which reaction will occur if each substance is in it's standard state. Assume potentials are given in water at 25 C.
A solution of hydroiodic acid is 0.057 M HI. What is the hydronium-ion concentraion at 25 degrees C?
How many moles of HNO3 are present if 0.141mol of Ba(OH)2 was needed to neutralize the acid solution
The mass of the KHP is 1.496 g. Before the titration the buret reading was 0.7600 mL and afterwards it was 28.13 mL. A 146.30 mL sample of a solution of sulfuric acid, H2SO4, is neutralized by 115.36 mL of the NaOH solution from the problem above...
A 14.7 g of ice is placed into 324 g of water. Calculate the temperature change in the water upon complete melting of the ice.
Compare and contrast continuous spectrum and line spectrum as they relate to the elements. Describe how spectral lines can be used to identify elements.
How many milliliters of 0.160 M Na2S are needed to react with 35.00 mL of 0.315 M AgNO3 Na2S(aq) + 2 AgNO3(aq) ? 2 NaNO3(aq) + Ag2S(s)
Water molecules change their states between the liquid and gaseous states. A.only when water vapour is saturated B.at all times becauseevaporation and condensationoccur any time C
How many grams of Cuso4 are needed to prepare a .150 molal solution in 300 grams of water?
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