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Aspirin (acetylsalicylic acid, C9H8O4) is a weak monoprotic acid. To determine its acid-dissociation constant, a student dissolved 2.00 g of aspirin in 0.600 L of water and measured the pH. What was the K a value calculated by the student if the pH of the solution was 2.60?
A container with 1.00 mol of gas is expanded from 5.00L to 10.0L by adding more gas. The temperature and pressure are kept constant. How many moles of gas are present after the expansion
What is the complete ionic equation and the net ionic equations for the reaction of Ca(No3)2 and Na2SO4? which are the spectator ions
when you reduce benzoin with NaBH4, why do you get mostly the meso compound?
For the strong base solution 4.0×10?3 M Ca(OH)_2, determine [OH^-], [H_3O^+], pH, and pOH.
If the fluid inside a tree is about 0.3 M more concentrated in solute than the groundwater that bathes the roots, how high will a column of fluid rise in the tree at 24°C. Assume that the density of the fluid is 1.0 g/cm3. (The density of mercury ..
Your lab partner is typically spot-on, but today they are having an awful day. Instead of using concentrated sulfuric acid in this exercise, they used concentrated hydrochloric acid.
Cobalt was used as an internal standard to analyze a sample of titanium with atomic absorption spectroscopy. A mixture was prepared by combining a 5.50 mL Ti solution of unknown concentration with 2.00 mL of a 13.4 g/mL solution of Co
What was the decay rate (in Bq) of this 226Ra sample at the time is was isolated. Assuming this sample was not diluted of otherwise separated or altered,
How do you correctly draw the lewis structure for acetone, (CH3)2OH. step by step, and reasoning for the structure.
at 373 k keq 2.39 for the following reactionso2cl2g so2g cl2gin an equilibrium mixture of the three gases the
Use a Maxwell relation to derive the relation (δS/δV)T =nR/V from dA= -SdT - pdV and pV=nRT.
how many grams of ch4 must be burned to release 490 kj of heat based on this thermochemical equationch4 2 o2 --gt co2
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