How many atoms are there in 38 g of iron(Fe) please help

Chemistry

1 answer:

garik1379 [7]3 years ago

4 0

Answer:

Explanation:

1 mole of iron is 56 grams (rounded)

x mole of iron is 38 grams (given

1/x = 56/38 Cross multiply

56x = 38*1 Divide by 56

x = 38/56

x = 0.679 mols of iron

1 mol of anything = 6.02 * 10^23

0.678 mols of iron = x

1/0.679 = 6.02 *10^23 /x

x = 0.679 * 6.02*10^23

x = 4.09 * 10 ^23

So there are 4.09 * 10^23 atoms of Fe in 38 grams of iron

You might be interested in

How many molecules are in 2.0 moles of oxygen gas

Dmitry [639]

Answer:

One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.

Explanation:

3 0

3 years ago

Read 2 more answers

Write a balanced chemical equation for dissolving calcium chloride in water.

jarptica [38.1K]

CaCl2(s) -> Ca^2+(aq)+Cl(aq)

3 0

4 years ago

Can someone please help me!! What are the parts of a Bunsen burner if possible add a picture and name please thanks

borishaifa [10]

<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2><h2>BUNSEN BURNER:</h2>

Bunsen burner is an instrument which is used as a source of heat using natural gas or petrol. It is used for the heating, sterlization, and combustion. Bunsen burner is named after its inventor Robert bunsen.

<h2>____________________________________</h2><h3>Mechanism:</h3>

Burner provide a single, continuous flame by mixing gas with air in a controlled fashion. The ratio of gas to air that is mixed together can be manually adjusted, allowing the user to control the intensity, temperature, and size of the flame.

<h2>____________________________________</h2><h3>PICTURE IS ATTACHED BELOW</h3><h2>____________________________________</h2><h2>Best Regards!</h2><h2>'Borz'</h2>