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Calculate the quantity of heat in calories release when 241.62 g of water is cooled from 80.6°C to 28.0°C.
What is the volume occupied by 0.118 mol of helium gas at a pressure of .97 atm and a temperature of 305k?
Draw the final step of the mechanism and predict the major product obtained in the dehydration of 2
A solution of barium nitrate contains 6.12 g per liter of solution. How many grams of barium nitrate is contained
A solution of aqueous ammonia was titrated with HCL using phenolphthalein as the indicator a) is phenolphthalein an appropriate indicator for this titration? why or why not? b) choose another indicator for thetitration of nh3 by hcl
Metals such as magnesium and zinc react with dilute sulfuric acid to give hydrogen, according to the equation: M (s) + H2SO4 (aq) -------> MSO4 (aq) + H2 (g) When 5.00 g of a mixture of powdered magnesium and zinc were dissolved in diluted sulfuri..
The equation for the combustion of gaseous methanol is: 2CH3OH(g) + 3O2(g) ? 2CO2(g) + 4H2O(g) Estimate the ?H°rxn per mole of methanol combusted
How many moles of N2O3 are needed so that you have 2.55 x 1024 oxygen atoms.
Solid copper (II) hydroxide from copper nitrate. First, add 30 mL of 3.0M sodium hydroxide to the solution in the Erlenmeyer Flask.Take a stirring rod and place the end about 1 cm into the solution; then tough the end to a 2 cm piece of red litmus..
Treatment of the following stereoisomer of 1-bromo-1,2-diphenylpropane with sodium ethoxide in ethanol gives a single stereoisomer of 1,2-diphenylpropene. Draw the E2 elimination product of the reaction.
What is the molarity of 175 mL of a solution containing 2.18 g of Na2SO4·10H2O? 0.00377 M B. 0.644 M C. 0.00878 M D. 0.00118 M E. 0.0387 M
What is the percent ionization of a 0.060 M solution of benzoic acid ( a monoprotic acid with Ka= 6.5 * 10^-5)
calculate the mass of propylene glycol rmc3 rmh8 rmo2 that must be added to 0.340 kg of water to reduce the vapor
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