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The unofficial state food of Arizona is a chimichanga, a deep fried burrito. You eat a chimichanga that contains 1500 kJ of potential energy. You walk 3 miles, which performs 900 kJ of work on the environment, and in that time you lose 500 kJ in heat transfer to the environment. What is your ΔU, taking into account these processes ONLY.

A sample of a gas has a mass of 1.73 g and occupies 2.00 L at 122°C and 1.00 atm. What is the molar mass?   (10pts)

What are the first six partials of the overtone series beginning on F2?  (write this answer with note names and octave numbers.  Use “#” for sharp and “b” for flat.) F2, [note1], [note2], [note3], [note4], [note5]

Is the following a geometric sequence? If so, find the common ratio, r.  50, 10, 2, … 

What are the notes of an F MAJOR scale?  (use “#” for sharp and “b” for flat) F, [note1], [note2], [note3], [note4], [note5], [note6], F

Potassium permanganate is a chemical used as an oxidizing agent in many industrial applications, and as a disinfectant. Its chemical structure is shown below. If 16 g of potassium permanganate is dissolved in 250 mL of water, what is the concentration in M, to two decimal places? The average atomic weight of potassium is 39.098 g/mol The average atomic weight of oxygen is 15.999 g/mol The average atomic weight of manganese is 54.938 g/mol

Suppose you borrow $[x] from a [y]-year mortgage with an annual interest rate of [z]%.   What will be the monthly payment?

In the simple diffusion activity, NaCl (MW 58 g/mol) diffused through a 50 MWCO membrane.  Explain how this is possible. 

Use the given degree of confidence and sample data to construct a confidence interval for the population mean μ. Assume that the population has a normal distribution.n = 12,  = 25.2, s = 4.7, 99% confidence

Calculate the change internal energy (ΔE) for a system that is giving off 65.0 kJ of heat and is performing 855 J of work on the surroundings.   (5pts)