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2 years ago

Which has more atoms, 1 moles of barium atoms or 2 moles of carbon atoms?

Chemistry

2 answers:

stich3 [128]2 years ago

4 0

Answer:

your answer is 1 miles or barium

Amiraneli [1.4K]2 years ago

4 0

Answer:

Answer 4: 2 moles of Carbon atoms.

Explanation:

A mole is an unit of count (equal to around 6.02214076×10^23, but it's immaterial here).

It means that they're asking which has more atoms - X atoms or two times as many atoms?

Of course it's twice as many atoms.

Please note we did not need to use the info that it's Barium, that it's Carbon, or how much exactly is a mole.

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A sample of propane(c3h8)has 3.84x10^24 H atoms.

deff fn [24]

Answer:

A) 14. 25 × 10²³ Carbon atoms

B) 34.72 grams

Explanation:

1 molecule of Propane has 3 atoms of Carbon and 8 atoms of Hydrogen.

The sample has 3.84 × 10²⁴ H atoms.

If 8 atoms of Hydrogrn are present in 1 molecule of propane.

3.84 × 10²⁴ H atoms are present in

$\mathfrak{ \frac{3.8 }{8} \times 10 ^{24}}$

= 4.75 × 10²³ molecules of Propane.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

No. of Carbon atoms in 1 molecule of propane = 3

=> C atoms in 4.75× 10²³ molecules of Propane = 3 × 4.75 × 10²³

= 14.25 × 10²³ 

________________________________________

Gram Molecular Mass of Propane(C3H8)

= 3 × 12 + 8 × 1

= 36 + 8

= 44 g

1 mole of propane weighs 44g and has 6.02× 10²³ molecules of Propane.

=> 6.02 × 10²³ molecules of Propane weigh = 44 g

=> 4. 75 × 10²³ molecules of Propane weigh =

$\mathsf{ \frac{44 }{6.02 \times {10}^{23} } \times 4.75 \times {10}^{23} }$

$\mathsf{ = \frac{44 }{6.02 \times \cancel{{10}^{23} }} \times 4.75 \times \cancel{ {10}^{23}} }$

$\mathsf{ = \frac{44 }{6.02 } \times 4.75 }$

= 34.72 g

8 0

2 years ago

What is the molarity of a stock solution if 60 mL were used to make 150 ml of a .5M solution?

olga2289 [7]

The molarity of the stock solution is 1.25 M.

Explanation:

We have to find the molarity of the stock solution using the law of volumetric analysis as,

V1M1 = V2M2

V1 = 150 ml

M1 = 0.5 M

V2 = 60 ml

M2 = ?

The above equation can be rearranged to get M2 as,

M2 = $$\frac{V1M1}{V2}$

Plugin the values as,

M2 = $$\frac{150 \times 0.5}{60}$

= 1.25 M

So the molarity of the stock solution is 1.25 M.

4 0

2 years ago

PLEEAASSEE HEELLPP MEE I NEED THIS ANSWER TO FINISH THE LAST QUESTION!!!!

VARVARA [1.3K]

The product label should be at the bottom hopes this helped

3 0

3 years ago

Read 2 more answers

The formula c₂H₄o can represent?

NikAS [45]

Answer:

Ethylene oxide

Explanation:

Ethylene oxide is an organic compound with the formula C2H4O. It is a cyclic either and the simplest epoxied: a three-membraned ring consisting of one oxygen atom and two carbon atoms!

7 0

2 years ago

In animals. energy is produced by the:

CaHeK987 [17]

It’s c mitochondria

5 0

2 years ago