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algol [13]
3 years ago
8

The nutritional recommended daily allowance (rda) of calcium is 1,300 mg for a 9-18-year-old. How many grams is this? How many a

toms of calcium is this?​
Chemistry
1 answer:
Simora [160]3 years ago
6 0

Answer:

1.3 grams and I think the atoms of calcium is 7, 829. 9

Explanation:

hope this helps!

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Is thiamine mononitrate an ionic bond or covalent bond?
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The volume of the earth is approximately 1.08326x10 to the 12th power km to the 3rd power. How many liters is this
mafiozo [28]

Here, we are required to determine the volume of the earth which is 1.08326 × 10¹² km³ in liters.

<em>The volume of the earth is approximately</em>,

, 1.08326 × 10²⁴ liters

By conversion factors;

  • <em>1dm³ = 1liter</em>
  • However; <em>1km = 10000dm = 10⁴ </em><em>dm</em>
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Consequently, 1km³ = 10¹²dm³ = 10¹²liters.

The conversion factor from 1km³ to liters is therefore, c.f = 10¹²liters/km³

Therefore, the volume of the earth which is approximately, 1.08326 × 10¹² km³ can be expressed in liters as;

<em>1.08326 × 10¹² km³ × 10¹²liters/km³ </em>

The volume of the earth is approximately,

1.08326 × 10²⁴ liters.

Read more:

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