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gtnhenbr [62]
3 years ago
14

How many atoms are present in 179.0 g of iridium? include units please:)!

Chemistry
2 answers:
pentagon [3]3 years ago
6 0

Answer:

A. 5.606x10²³atoms

Explanation:

denpristay [2]3 years ago
5 0

Answer:

179.0 g of iridium (1 mol / 192.217 g) ( 6.022 x 10^23 atoms /  1 mol ) = 5.61 x 10^23 atoms of iridium

Explanation:

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How many carbon atoms are contained in 2.8 g of c2h4 ?
MrRa [10]

Answer:

The answer to your question is:  1.205 x 10²³ atoms of Carbon

Explanation:

Data

Carbons atoms contained in 2.8 g C₂ H₄

MW C₂ H₄ = (12 x 2) + (4 x 1) = 24 + 4 = 28 g

                         28 g of C₂ H₄ ----------------  24 g of carbon

                         2.8 g C₂ H₄   -----------------    x

                         x = (2.8)(24) / (28)

                            = 2.4 grams of C

                             1 mol  -------------------   12 g of Carbon

                             x        -------------------    2.4 g

                            x = (2.4x 1) / 12 = 0.2 mol

                             1 mol -----------------   6.023 x 10 ²³ atoms

                           0.2 mol  --------------     x

                            x = (0.2 x 6.023 x 10 ²³) / 1

                              = 1.205 x 10²³ atoms

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3 years ago
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masha68 [24]
Areas of high concentration to areas of low concentration.
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3 years ago
The (triangle)Hrxn of formation of carbon dioxide is negative. Which statement is true? The reaction is endothermic. The reactio
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The negative ion reactions that consist of the formation of carbon dioxide in the atmosphere is generally an exothermic reaction. By definition, an exothermic reaction takes place when the chemical process eventually releases heat as its by-product. It is in contrast in endothermic process wherein heat is absorbed.
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What is the mass of the oxygen in one mole of calcium phosphate
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Answer:

16.00 g/mol

Explanation:

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2 years ago
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Answer: The Diver's air tank is filled with oxygen gas.

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