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zlopas [31]
3 years ago
11

The quantity, 1,385 mg is equivalent to in scientific notation

Chemistry
1 answer:
Agata [3.3K]3 years ago
8 0

Answer:

The answer is 1385 x10∧ -3

Explanation:

Scientific notation is a quick way to represent a number using notation in exponential form or powers of base ten.

This notation allows us to express too large or small numbers easily.

<u>For example: </u>

500 is written as 5x10∧2; Where the power 2 represents the number of 0's that follow 5.

0.0093 is written as 9.3x10∧-3; Where the power -3 represents the number of times the comma was moved to the right.

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Use the ideal gas law to calculate the pressure in atmospheres of 0.21 mol of helium (He) at 16°C &amp; occupying 2.53 L. You mu
chubhunter [2.5K]

Answer:

The answer to your question is 2.32 atm

Explanation:

Data

P = ?

n = 0.214

V = 2.53 L

T = 61°C

R = 0.082 atm L/mol°K

Formula

PV = nTR

solve for P

P = nRT/V

Process

1.- Calculate the temperature in K

°K = °C + 273

°K = 61 + 273

    = 334

2.- Substitution

P = (0.214 x 0.082 x 334) / 2.53

3.- Simplification

P = 5.86/2.53

4.- Result

P = 2.32 atm

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3 years ago
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3 years ago
The reaction below produces _________________________ Question 5 options: A) trans-1,2-diol B) cis-1,2-diol C) a halohydrin D) a
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Answer:

C) a halohydrin

Explanation:

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NBS is a very suitable alternative to Br2 in the synthesis of a halohydrin. Recall that the reactive intermediate when bromine reacts with an alkene is the brominium ion which is a three atom ring ion. If excess water is used as the solvent, then the water attacks the brominium ion to yield the product halohaydrin with trans a trans stereochemistry.

6 0
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Your answer is D.

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7 0
3 years ago
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How do you get all the amino acids that your body needs to make proteins?
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