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A 500 mL graduated cylinder contain 295 mL of alcohol. If 15 cL of water are added to the cylinder, what is the final volume of the solution in liters?
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Exactly 10.2 mL of water at 31.0 degrees celsius are added to a hot iron skillet. All of the water is converted into steam at 100 celsius. the mass of the pan is 1.05kg and the molar heat capacity of iron is 25.19 J/(molXC).
a 0.025 m monoprotic weak acid is titrated with a 0.10 m naoh solution at 25degc and the ph at the half-equivalence
Lakes that have been acidified by acid rain can be neutralized by liming, the addition of limestone (CaCO3). How much limestone in kilograms is required to completely neutralize a 3.8 x 109 L lake with a pH of 5.5
Uranium-238 decays very slowly, with a half-life of 4.47 billion years. What percentage of a sample of Uranium-238 would remain after 13.4 billion years.
What is the density (in grams per liter) of a gas mixture that contains 25.0% F2 and 75.0% He by volume at 768 mm Hg and 25.0 degrees C
Predict the sign of delta S_system for the following processes a) molten Fe solidifies b) LiCl_(s) is formed formed from Li_(s) and Cl2_(g)
Net equations and mechanisms for Tollen's test and Iodoform test with 3,3-dimethyl-2-butanone.Also net equation and mechanism of the synthesis of 2,4-Dinitrophenylhydrazine(derivative) with 3,3-dimethyl-2-butanone.
What substance (element on the periodic table) resides at the heart of the structure of vitamin B12? 2 points
Problem- Calculate the energy of a benzene (C6H6) molecule in the (nx,ny,nz) = (5,7,12) translational energy level in a 1mL container (hint: 1mL = 1 cm^3, so you know L in cm). Provide complete computation
How many moles of sodium chloride are present in the original solution. How many moles of ammonia are present originally
Give the IUPAC name for each of the following compounds. Do not forget to use commas to separate locant numbers from each other and to use hyphens to separate locant numbers from letters.
A student failed to standardize his NaOH solution with KHP. Instead, he calculated the NaOH solution concentration from the mass of NaOH his laboratory instructor dissolved to prepare the solution.
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