# Question: How many moles are there in 280g of silicon?

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The molar mass of silicon is 28. Therefore, 28 gram of silicon is equivalent to one mole of silicon. Thus, 280 g of silicon is equivalent to 10 moles.

## What is the mole of I 280g of silicon?

Atomic wt. of Si is 28g. No. of moles = given mass /atomic mass = 280 g /28 g = 10 moles of Si atoms in 280g sample.

## How many moles are present in 4.68 milligram of silicon?

4.68 mg of Silicon = 4.68 x 10-3 g of silicon moles of Silicon = Mass of Silicon / Atomic Mass g = 4.68×10−3/ 28.1 = 1.66×10-4 mol.

## How many moles are present in 4.60 g of silicon?

In other words, 4.60 g Si <=> 0.164 mol Si.

## How many mole of silicon are present in 30.5 grams?

The answer is 28.0855. We assume you are converting between grams Silicon and mole. You can view more details on each measurement unit: molecular weight of Silicon or mol The molecular formula for Silicon is Si.

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## What is the molar mass of silicon?

So in order to calculate the number of moles of any substance present in the sample, we simply divide the given weight of the substance by its molar mass. Where ‘n’ is the number of moles, ‘m’ is the given mass and ‘M’ is the molar mass.

## How many moles are there in each of the following 280 grams of silicon?

The molar mass of silicon is 28. Therefore, 28 gram of silicon is equivalent to one mole of silicon. Thus, 280 g of silicon is equivalent to 10 moles.

## How many atoms are present in 52 moles of argon?

Therefore in 52 moles of Argon 3.13196×1025 atoms are present.

## How many moles are there in 19.0 atoms of fluorine?

A)Atomic wt. of F is 19. No. of moles = given mass /atomic mass = 19g /19g = 1 mole of F atoms in 19g sample of F.

## How many moles are in silicon?

From the Periodic Table we find Si has a gram molecular weight of 28.1 g/mole. Therefore, the number of moles of Si here is 11.8g/28.1g/mol = 0.42 moles Si.

## How many moles are there in 45g of CL?

= >0.6⋅mol Cl2 gas.

## How many molecules is 3 moles?

A mole of anything contains 6.022×1023 individual items of that something. You have 3 moles, so there are 3×6.022×1023 oxygen molecules .

## How many grams of silicon is present in?

1 gram atom of silicon weighs 28 g.

## How many grams of silicon is present in 35 g atom of silicon?

Hence 980 grams of silicon is present in 35-gram atoms.

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## How many g of Si are present in 9 moles of Si?

The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Silicon, or 28.0855 grams.