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3 years ago

5

Recycling one ton of paper is the equivalent of approximately how much of the following? a.) all of the below b.) 460 gallons of

oil c.) 6950 gallons of water d.) 590 pounds of air pollution

1 answer:

jek_recluse [69]3 years ago

5 0

I think the answer is a

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Ammonia, nh3, for fertilizer is made by causing hydrogen and nitrogen to react at high temperature and pressure. How many moles

charle [14.2K]

Answer:

$0.30molNH_3$

Explanation:

Hello there!

In this case, since the reaction for the formation of ammonia is:

$3H_2+N_2\rightarrow 2NH_3$

We can evidence the 1:2 mole ratio of nitrogen gas to ammonia; therefore, the appropriate stoichiometric setup for the calculation of the moles of the latter turns out to be:

$0.15molN_2*\frac{2molNH_3}{1molN_2}$

And the result is:

$0.30molNH_3$

Best regards!

7 0

2 years ago

Using insulate gloves, Ms. Sanders transferred a few pieces of dry ice to a flask and covered it with a balloon. After a few min

gavmur [86]

Answer:

i think the answer is D

Explanation:

5 0

2 years ago

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The concentration of protein in a urine sample is calculated to be 2.77 μg/mL. What is the concentration of this solution in uni

maxonik [38]

Answer:

The concentration of this solution in units of pounds per gallon is $2.776*10^{-5} \frac{lb}{gal}$

Explanation:

Units of measurement are established models for measuring different quantities. The conversion of units is the transformation of a quantity, expressed in a certain unit of measure, into an equivalent one, which may or may not be of the same system of units.

In this case, the conversion of units is carried out knowing that 1 μg are equal to 2.205*10⁻⁹ Lb and 1 mL equals 0.00022 Gallons. So

$2.77 \frac{ug}{mL} = \frac{2.77 ug}{mL}$

If 1 μg equals 2.205*10⁻⁹ lb, 2.77 μg how many lb equals?

$lb=\frac{2.77ug*2.205*10^{-9}lb }{1ug}$

lb=6.10785*10⁻⁹

So, 2.77 μg= 6.10785*10⁻⁹ lb

Then:

$2.77 \frac{ug}{mL} = \frac{2.77 ug}{mL}=\frac{6.10785*10^{-9}lb }{mL} =\frac{6.10785*10^{-9}lb }{0.00022 gal} =\frac{6.10785*10^{-9}lb }{0.00022 gal}$

You get:

$2.77 \frac{ug}{mL} = 2.776*10^{-5} \frac{lb}{gal}$

<u><em>The concentration of this solution in units of pounds per gallon is </em></u> $2.776*10^{-5} \frac{lb}{gal}$ <u><em></em></u>

6 0

2 years ago

Which of the following is true about the differences between the "Plum Pudding" model and Rutherford's model? There are two poss

Ugo [173]

I think it is the letter A because they both Make sense

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3 years ago

If I have 2 moles of apple, how many apples do I have?

Zielflug [23.3K]

Answer

not too sure, but perhaps, 24

Explanation:

1 mole = 12 apples

2 moles = 24 apples

5 0

2 years ago

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