In 2014 (the last year for which I can find data), Utah County had a carbon monoxide (CO) average concentration of 1.90 ppm. (1 ppm stands for 1 part per million which means in one million volumes of air—choose whatever volume unit you like—there would be one volume of carbon monoxide.) An average human takes inhales 0.50 L per breath and takes 20 breaths per minute. Carbon monoxide in the atmosphere has a density of 1.2 grams per liter. 3. How many milligrams of carbon monoxide would a person in Utah County inhale in an 8 hours?

Q: Question 2 Which of the following is correct for the 15t ionization energies of S, Se, F S>P> Se

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A:

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Q: None

A: Solution: mass of CuF2 = 0.070 g moles of CuF2 = 0.070 / 101.54 = 6.89 x 10^-4 mol volume = 200 mL =…

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Q: Objective KTIOV A chemistry student weighs out 0.0434 g of sulfurous acid (H,SO,), a diprotic acid,…

A: Molarity is defined as number of moles per litre of solution.

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Q: 5. If you have 77g of pure ethanol mixed with 330 g of water, what's the % by mass of the ethanol?…

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A: we have to calculate grams of sucrose needed to prepare the solution

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A: Given that 25ppm Cl- means 25 grams of Cl- in 106 gram of water.

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A: Milliliters of Sucrose Solution NeededWe can use the dilution equation to find the volume of the…

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Q: 5 A,B,C,D

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A: (a)

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A: 1)  pH of HCl solution to be prepared =1.9

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A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.