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3 years ago

2. If 1.204 X 1024 atoms of sodium is 20% of the total sodium atoms in sodium

Chemistry

1 answer:

GuDViN [60]3 years ago

3 0

Answer:

584.2 g

Explanation:

Hello there!

In this case, since we know the 20% of the atoms correspond to sodium, we can compute the total atoms as shown below:

$\frac{1.204 x10^{24}}{0.2}=6.02x10^{24}atoms$

Which are also equal to 1 mol and the Avogadro's number of sodium chloride with a molar mass of 58.44 g/mol; thus, the grams of salt turn out to be:

$6.02x10^{24}atoms*\frac{1mol}{6.022x10^{23}atoms} *\frac{58.44g}{1mol}\\\\=584.2g$

Best regards!

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Answer:

Explanation:

1) Given data:

Number of moles of lead = 4.3×10⁻³ mol

Mass of lead = ?

Solution:

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2) Given data:

Number of atoms of antimony = 3.8×10²² atoms

Mass of antimony = ?

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3) Given data:

Mass of tungsten = 15.5 Kg (15.5 kg × 1000 g/ 1kg = 15500 g)

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3 years ago

If 448.85 mg of KOH is dissolved in 400 ml of water, what will be the pH of the solution?

emmasim [6.3K]

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