Chemistry Answers

For 2AB+C₂ → A₂+2BC, suppose AH = 100kJ, E₁-250kJ, and that the intermediate is A + C. Describe a potential energy process for this reaction. You do not need to use your reaction mechanism for this question.

A reaction has a rate constant of 7.3x10 M/s at 315 K and a frequency factor of 4.4x10 What is the activation energy of the reaction?

what is the mass of acetylene

what is the concentration of a solution with a volume of 3.3ml that contains 12 grams of ammonium sulfite((NN4)2SO3)

If the true concentration of CaCO, in the drinking water described in Problem 3-10 is 225.9 ppm, calculate the absolute and parts per thousand error.

Find the resulting temperature when 100 g of ice at 0oC is mixed with 1 liter of H2O at 35oC. 

Characterization of elements according to periodic table

Example., P-phosphorus, period-5, group-15 or Va; atomic number Z=15, number of protons P=15, number of electrons e=15; relative atomic mass Ar=31; nonmetal

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A glucose solution is frequently used as an intravenous (IV) solution to supply hydration and/or nutrition. Calculate amounts of glucose provided and volumes used.

A patient received 2.05 L of a 0.278 M glucose IV solution.

What quantity in moles of glucose were administered to the patient?

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Student A investigated the rate of reaction between calcium carbonate (marble chips) and hydrochloric acid. The student collected 10.0 cm3 of gas produced after 15 seconds.Student B investigated the rate of reaction between magnesium and hydrochloric acid. The student collected 19.5 cm3 of gas produced after 10 seconds.Which student’s investigation had a faster rate of reaction?