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Vesna [10]
2 years ago
14

Determine the mass in grams of 4.69 x 1021 atoms of barium. (The

Chemistry
1 answer:
Virty [35]2 years ago
5 0

Answer:

1.07 g Ba

Explanation:

Hello there!

In this case, according to the definition of the Avogadro's number and the molar mass, it is possible to say that 6.022x10^{23} atoms of barium equal one mole, and at the same time, 1 mole equals 137.327 grams of this element; thus, it is possible to say that 6.022x10^{23} atoms of barium have a mass of 137.327 grams; therefore, it i possible for us to calculate the required mass in grams as shown below:

4.69x10^{21}atoms*\frac{137.327gBa}{6.022x10^{23} atoms} \\\\=1.07gBa

Best regards!

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5 0
2 years ago
6.0 g of copper was heated from 20 degree c to 90 degree c . How much energy was used to heat cu?
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3 years ago
The __________ system is made up of the nose, pharynx, trachea, lungs, bronchi, and alveoli. *
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aniked [119]

Answer:

V = 48.5 L

Explanation:

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2 years ago
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