Question

Вычислите количесво молекул воды:1)0,2 (2)2,0 (3)5,0 моляхВыразите в молях:1)12,04*10²³ атомов железа2)3,01*10²³ атомов водорода.3)6,02 * 10²³ атомов углерода!!!!ПОЖАЛУЙСТА,ПОДРОБНО В ВИДЕ ЗАДАЧИ С ДАНО И РЕШЕНИЕМ!!!!

Answer 1

количество молекул = N=n x 6,02 *10^23

1) N= 0.2моль x 6.02*10^23 = 1.204 * 10^23

2) N= 2.0 моль x 6.02*10^23 = 12.04* 10^23

3)N = 5 моль x 6.02*10^23= 30.1 * 10^23 

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 количество молекул = N=n x 6,02 *10^23 , где n= количество атомов / N

1) n = 12.04* 10^23 / 6.02* 10^23 = 2 моль 

2)n = 3.01* 10^23 / 6.02* 10^23 = 0.5 моль

3)n = 6.02* 10^23 / 6.02* 10^23 =1 моль

Вникай, тут ДАНО писать как бы и не надо.  

Answer 2

Calculation of the Number of Water Molecules:

To calculate the number of water molecules, we need to convert the given quantities from moles to molecules. The conversion factor is Avogadro's number, which is approximately 6.022 x 10^23 molecules per mole.

1) For 0.2 moles of water: - Multiply the number of moles by Avogadro's number to get the number of molecules: 0.2 moles * 6.022 x 10^23 molecules/mole = 1.2044 x 10^23 molecules of water.

2) For 2.0 moles of water: - Multiply the number of moles by Avogadro's number to get the number of molecules: 2.0 moles * 6.022 x 10^23 molecules/mole = 1.2044 x 10^24 molecules of water.

3) For 5.0 moles of water: - Multiply the number of moles by Avogadro's number to get the number of molecules: 5.0 moles * 6.022 x 10^23 molecules/mole = 3.011 x 10^24 molecules of water.

Therefore, the number of water molecules is: 1) 0.2 moles of water = 1.2044 x 10^23 molecules of water. 2) 2.0 moles of water = 1.2044 x 10^24 molecules of water. 3) 5.0 moles of water = 3.011 x 10^24 molecules of water.

Conversion to Moles:

To convert the given quantities from atoms to moles, we need to divide the number of atoms by Avogadro's number, which is approximately 6.022 x 10^23 atoms per mole.

1) For 12.04 x 10^23 atoms of iron: - Divide the number of atoms by Avogadro's number to get the number of moles: (12.04 x 10^23 atoms) / (6.022 x 10^23 atoms/mole) = 2 moles of iron.

2) For 3.01 x 10^23 atoms of hydrogen: - Divide the number of atoms by Avogadro's number to get the number of moles: (3.01 x 10^23 atoms) / (6.022 x 10^23 atoms/mole) = 0.5 moles of hydrogen.

3) For 6.02 x 10^23 atoms of carbon: - Divide the number of atoms by Avogadro's number to get the number of moles: (6.02 x 10^23 atoms) / (6.022 x 10^23 atoms/mole) = 1 mole of carbon.

Therefore, the conversion to moles is: 1) 12.04 x 10^23 atoms of iron = 2 moles of iron. 2) 3.01 x 10^23 atoms of hydrogen = 0.5 moles of hydrogen. 3) 6.02 x 10^23 atoms of carbon = 1 mole of carbon.

I hope this helps! Let me know if you have any further questions.