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2 years ago

A 141mg sample was placed on a watch glass that has a mass of 9.203g. what is the mass of the watch glass and sample in grams?

Chemistry

1 answer:

Volgvan2 years ago

8 0

Given the mass of sample placed on the watch glass = 141 mg

Converting mass of the sample from mg to g:

$141 mg * \frac{1 g}{1000 mg} =0.141 g$

Mass of watch glass = 9.203 g

So, the total mass of watch glass and the sample = 9.203 g +0.141 g = 9.344 g

Therefore, the mass of the watch glass and the sample in grams is 9.344 g

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OLga [1]

Answer:

Avogadro’s number was calculated by determining the number of atoms in 12.00 g of carbon-12.

Explanation:

The number of particles presents in one mole of a substance is known as Avogadro's number.

Avogadro's number is $6.022\times10^2^3$ atoms or molecules or ions or particles present in one mole of a substance. It is denoted by the symbol $L$ or $N_A$ . It is a dimensionless quantity.

Avogadro's number was proposed by Jean Perrin but named in the honor of italian scientist Amedeo Avogadro.

Avogadro's number is the number of atoms present in 12 grams of carbon-12.

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Hello user, you did not add a picture of an attachment to enable me help you solve this problem. Please check the attachment I added i believe it is the question that needs to be solved.

Explanation:

1. In the first column

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2 years ago

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1 year ago

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