How many molecules are in 1. 8 g of H2O?.

Answers

Answer 1

There are approximately 6.022 x 10^22 (6.022 x 10²²) molecules in 1.8 grams of H2O.

To determine the number of molecules in 1.8 g of H2O, we first need to know the molar mass of H2O. The molar mass of H2O is 18.015 g/mol. To convert the mass of H2O to moles, we divide it by the molar mass:

1.8 g H2O / 18.015 g/mol = 0.1 mol H2O

Next, we use Avogadro's number (6.022 x 10^23) to convert moles to number of molecules:

0.1 mol H2O x 6.022 x 10^23 molecules/mol = 6.022 x 10^22 molecules

So, there are approximately 6.022 x 10^22 (6.022 x 10²²) molecules in 1.8 grams of H2O.

It is worth noting that, 1 mole of any substance contains Avogadro's number of entities of that substance. And Avogadro's number is a fundamental constant of nature which is used to express the number of atoms, ions, or other elementary entities in a given sample of a substance.

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Related Questions

What share of modern renewable energy supplies does hydroelectric power account for?.

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The shares of modern renewable energy supplies in the Hydroelectric power is 22%.

The Hydropower technologies generate power by using the elevation difference created by a dam or diversion structure of water flowing. The Hydropower is the affordable source of electricity that costs less than others. Hydropower relies only on the energy from moving water. As compared to other electricity sources, hydropower has relatively low costs throughout in terms of maintenance, operations, and fuel. Hydropower's have longer lifespan with low costs. It is a reliable form of backup power during major electricity outages or disruptions. Hydroelectric power produces a number of benefits outside of electricity generation such as flood control, irrigation support, and water supply.

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