How to calculate the mass of copper

Chemistry

2 answers:

faust18 [17]3 years ago

7 0

You can acquire the atomic mass of any chemical element by using the periodic table. I've provided an example on a document below to help you identify the components of an element block from the periodic table. Now if you want to find the mass of an exact amount of a substance you use moles for that. That's why it's called molar mass. To find the molar mass of a substance follow this little guide:

Start with the number of grams of each element given.
Convert the mass of each element to moles utilizing the molar mass from the periodic table.
Divide each mole value by the smallest number of moles deciphered.
Round your answer. This is the mole ratio of the element.

*Use the third document I've inserted below to follow the guide.

*All documents used here are property of their respective owners*

timurjin [86]3 years ago

7 0

You can obtain the atomic mass of any chemical element by using the periodic table.

The molar mass is usually listed underneath the chemical symbol. The units associated with molar mass is grams per mole .

Reference - https://www.tutoreye.com/

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What is the mass in grams of 5.40 moles of lithium.

Maslowich

You would use the formula:

n = $\frac{m}{M}$

Where m is the mass, and M is molar mass (the periodic table would be used for this)

In this case, we need to rearrange the formula to find m

m = nM
= 5.40 x 6.941
= 37.5g

Hope this helped! Ask me if there's any part of the working you don't understand :)

3 0

4 years ago

Read 2 more answers

Please help this is on my exam

Vikentia [17]

Answer:

D. The time of day

Explanation:

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6 0

3 years ago

What else is produced during the replacement reaction of magnesium and hydrochloric acid? Mg 2HCl â†’ H2.

irina [24]

A reaction in which the chemical element of the reactant is replaced by another to produce a product is called a single replacement reaction.

In a reaction, a hydrogen, metal or halogen element can get replaced with other more reactive elements to yield products.

The reaction of magnesium and hydrochloric produces:

$\rm MgCl_{2}$

The reaction can be explained as:

The reaction between the $\rm Mg$ and $\rm HCl$ is a single displacement reaction in which the more reactive metal replaces the less reactive metal from the compound.