Chemistry, 07.12.2020 08:10, Ashwaf23474

Mass in grams of 6.023×1023 atom of Ca

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answered: yeehaw777

$\boxed {\boxed {\sf 40.08 \ grams}}$

Explanation:

First, find the molar mass of calcium (Ca). This can be found on the Periodic Table.

40.08 g/mol

Next, find the number of moles.

Avogadro's Number tells us the number of atoms in one mole.

It is 6.023*10²³

Therefore, there are 6.023*10²³ atoms in 1 mole.

We have 6.023*10²³ atoms of calcium, so it must also be 1 mole of calcium.

Finally, find the mass. Set up a proportion using the molar mass of calcium.

$1 \ mol \ Ca * \frac{40.09 \ g}{1 \ mol \ Ca}$

Multiply. The moles (mol Ca) will cancel.

$1 * 40.08 \ g$

$40.08 \ g$

There are 40.08 grams in 6.023*10²³ atoms of calcium.

answered: Guest

explanation:

the largest database of organic compounds lists about 10 million substances, which include compounds originating from living organisms and those synthesized by chemists. the number of potential organic compounds has been estimated at 1060—an astronomically high number. the existence of so many organic molecules is a consequence of the ability of carbon atoms to form up to four strong bonds to other carbon atoms, resulting in chains and rings of many different sizes, shapes, and complexities. the simplest organic compounds contain only the elements carbon and hydrogen, and are called hydrocarbons. even though they are composed of only two types of atoms, there is a wide variety of hydrocarbons because they may consist of varying lengths of chains, branched chains, and rings of carbon atoms, or combinations of these structures. in addition, hydrocarbons may differ in the types of carbon-carbon bonds present in their molecules. many hydrocarbons are found in plants, animals, and their fossils; other hydrocarbons have been prepared in the laboratory. we use hydrocarbons every day, mainly as fuels, such as natural gas, acetylene, propane, butane, and the principal components of gasoline, diesel fuel, and heating oil. the familiar plastics polyethylene, polypropylene, and polystyrene are also hydrocarbons. we can distinguish several types of hydrocarbons by differences in the bonding between carbon atoms. this leads to differences in geometries and in the hybridization of the carbon orbitals.

answered: Guest

The answer is 1.82 j/g°c

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Mass in grams of 6.023×1023 atom of Ca...