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Nata [24]
3 years ago
15

A typical virus is 5x10-6 cm in diameter. if avogadro's number of these virus particles were laid in a row, how many kilometers

long would the line be?
Chemistry
2 answers:
Debora [2.8K]3 years ago
8 0
Answer is: line be long 3,011·10¹³ kilometers.
diametar of virus = 5·10⁻⁶ cm ÷ 100000 = 5·10⁻¹¹ km.
line lenght = 5·10⁻¹¹ km · 6,023·10²³.
line lenght = 3,011·10¹³ km.
Avogadro number = 6,023·10²³.
1 cm = 10⁻² m = 10⁻⁵ km.
ad-work [718]3 years ago
6 0

Answer:

3.01x10^{12} Km

Explanation:

The avogrado's number is A = 6.02x10^{23}, which means that in one mol of a substance, there is this number of molecules, or atoms, for example.

So, to know how long would be the line (L), we must multiply the numbers of diameter and avogrado:

L = 5x10^{-6} x 6.02x10^{23}

To do it, we must multiply the numbers, repeat the basis 10 and add the exponents, then:

L = 3.01x10^{18} cm 1 cm ------ ------------------10^{-6} Km3.01 x 10^{18} cm --------xBy simple direct rule: x = 3.01x10^{12} Km

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Write a balanced equation for the reaction of sulfuric acid (H,SO) and
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Answer:

Explanation:

Word equation:

sulfuric acid + ammonium hydroxide  →  ammonium sulfate + water

Chemical equation:

H₂SO₄ + NH₄OH → (NH₄)₂SO₄ + H₂O

Balanced chemical equation:

H₂SO₄ + 2NH₄OH → (NH₄)₂SO₄ + 2H₂O

The given reaction is the reaction of acid with base. When acid and base react salt and water are produced. In given reaction an acid sulfuric acid and base ammonium hydroxide react and form ammonium sulfate salt and water. The given reaction also follow the law of conservation of mass.

Steps to balance the equation:

Steps 1;

H₂SO₄ + NH₄OH → (NH₄)₂SO₄ + H₂O

H = 7                            H = 10

S = 1                             S = 1

O = 5                           O = 5

N = 1                            N = 2

Step 2:

H₂SO₄ + 2NH₄OH → (NH₄)₂SO₄ + H₂O

H = 12                            H = 10

S = 1                             S = 1

O = 6                           O = 5

N = 2                           N = 2

Step 3:

H₂SO₄ + 2NH₄OH → (NH₄)₂SO₄ + 2H₂O

H = 12                            H = 12

S = 1                               S = 1

O = 6                             O = 6

N = 2                             N = 2

3 0
3 years ago
How many atoms are in 5.62 moles of Mercury?
Maslowich

Answer:

3.384364 time 10^24 atoms

Explanation:

multiply by avogadro's number

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2 years ago
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