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tatyana61 [14]
3 years ago
10

How many miles of N2o2 in 76 g?molar mass is 92.02g

Chemistry
1 answer:
wlad13 [49]3 years ago
3 0
molar mass of the molecule is 60. Moles=mass/molar mass
92.02g/60=1.53366667mol
1.53mol(3sf)
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A chemical change occurs when an egg cooks. What effect does cooking have on the physical properties of an egg?
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Example of false solutions and true solutions <br>​
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Cual es la finalidad de las citas en el texto argumentativo<br><br><br><br><br><br><br>​
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3 years ago
My barometer is reading 1253 torr. What is the pressure in mmHg?
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Answer:

The pressure in mmHg is 1253 (option C)

Explanation:

Two quantities are directly proportional if when multiplying or dividing one of them by a number, the other is multiplied or divided by that number. In other words, the magnitudes are directly proportional when one magnitude increases and so does the other in the same proportion; or when one magnitude decreases and so does the other in the same proportion.

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a ⇒ b

c ⇒ x

So x=\frac{c*b}{a}

where a, b and c are data and x is the unknown value to be calculated.

In this case, knowing that 1 Torr = 1 mmHg, the rule of three can be applied as follows: if 1 torr is equal to 1 mmHg, 1253 torr is equal to how many mmHg?

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6 0
3 years ago
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Step 2: Calculate the final concentration of HCl

We will use the dilution rule.

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Step 3: Calculate the pH of the final HCl solution

Since HCl is a strong acid, [H⁺] = HCl. We will use the definition of pH.

pH = -log [H⁺] = -log 0.001 = 3

7 0
3 years ago
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