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Ad libitum [116K]
2 years ago
5

A chlorine atom has a diameter of 175 picometers (pm). Please write the diameter, in metered, in scientific notation.

Chemistry
1 answer:
Flauer [41]2 years ago
7 0
Picometre is equal to 1·10⁻¹²m
175·10⁻¹² m = 1,75·10⁻¹⁰ m
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18 electrons with a charge of +2
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3 years ago
Which formula represents the compound commonly known as phosphine <br> PH<br> PH2<br> PH3<br> PH4
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The answer is C). PH3
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Vitamin c is known chemically by the name ascorbic acid determine the empirical formula of ascorbic acid if it is composed of 40
kow [346]

Answer:

=C_3H_4O_3

Explanation:

When percentage composition is given, and asked for the empirical formula, it is simplest to  assume 100 g of material. Thus,

Mass C = 40.92 g.  Moles C = 40.92 g x 1 mole/12 g = 3.41 moles C

Mass H = 4.58 g.  Moles H = 4.58 g x 1 mole/1.0 g = 4.58 moles H

Mass O = 54.50 g.  Moles O = 54.50 g x 1 mole/16 g = 3.41 moles O

Now, we want to get the moles into whole numbers, so we begin by dividing all by the smallest, i.e. divide all values by 3.41.

Moles C = 3.41/3.41 = 1

Moles H = 4.58/3.41 = 1.34

Moles O = 3.41/3.41 = 1

Now, in order to get 1.34 to be a whole number we multiply it (and all others) by 3

Moles C = 1x3 = 3

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3 0
3 years ago
What type of bond is formed when both atoms have a strong attraction for an electron? A.hydrogen bond B.ionic bond C.covalent bo
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C. Covalent Bond

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6 0
3 years ago
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167 mL

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Solve for V2 —> V2 = P1V1/P2

V2 = (0.8 atm)(250 mL) / (1.2 atm) = 167 mL
7 0
3 years ago
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