Whats the si unit chemist use to measure the amount of an element substance?

1 answer:

4 0

The SI unit for the amount of substance present is the mole.

The mole is defined as the amount of substance that has the same amount of particles as there are atoms in 12 grams of carbon-12. Mathematically, the moles of a substance may be computed using:

moles present = mass of substance / molecular mass of substance

You might be interested in

What is the scientific name for weight?

katovenus [111]

Hello the term for weight is newton

hope this helped.

Cody

5 0

3 years ago

Read 2 more answers

A gold nugget has a volume of 20.0 cm3 and its density is 19.3 g/cm3. What is the mass of the gold nugget?

salantis [7]

Density * Volume = Mass

Now we substitute the values in.

19.3 g/cm^3 + 20 cm^3 = 386 g

Mass = 386 g

5 0

4 years ago

Read 2 more answers

Deserts are only found near the equator.

Goshia [24]

True because it is warmer closer to the equator

8 0

3 years ago

Na+ + Cl– NaCl Which statement best describes the relationship between the substances in the equation?

ANTONII [103]

Answer : The number of sodium ions is equal to the number of formula units of salt.

Explanation : In the given reaction of NaCl the statement which describes it the best is that the number of sodium ions is found to be same along with the formula units in the product side.

$Na^{+}$ + $Cl^{-}$ ----> NaCl.

Its clear from the equation that one mole of Na and one mole of Cl combines together to give the product, which is one mole of NaCl. The number of ions on both the sides are equal.

3 0

3 years ago

Read 2 more answers

How can we calculate empirical formula

Serggg [28]

Explanation:

TO calculate emperical formula , we need percentage composition of the elements and molecular mass of a specific compound which is already given in the question

then create a table with 1.name of element, 2.percentage given and its atomic mass , 3.no. of moles

( %given/at.mass of element) ... then take the least value in the no. of moles you have found now and divide with each no. of moles value .. to get a simple digit number.

You have got the empirical formula

7 0

3 years ago