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If a sample of pure sodium has a mass of 8.2 grams and sodium has an average atomic mass of 22.99 gmol how many sodium atoms are there in the sample?
To calculate the number of sodium atoms in the sample, first find the number of moles in the sample by dividing the mass (8.2 g) by the molar mass of sodium (22.99 g/mol). Then, use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles to atoms. Therefore, there are approximately 2.71 x 10^23 sodium atoms in a sample weighing 8.2 grams.
Why does a sample of pure sodium need to be kept in special oil so the air can't touch it?
Pure sodium is highly reactive with air and moisture, causing it to oxidize and form a layer of sodium oxide or hydroxide. This reaction can be exothermic and can lead to a fire or explosion in the presence of air. Storing pure sodium in oil creates a barrier between the sodium and air, preventing this dangerous reaction from occurring.
Is sodium metal composed of molecular crystals?
No, sodium metal is not composed of molecular crystals. Sodium metal is a pure elemental form of sodium, and it consists of a crystalline structure with a metallic bonding arrangement between the atoms.
What type of intermolecular forces would you expect to find in a pure liquid sample of carbon tetrachloride?
In a pure liquid sample of carbon tetrachloride (CCl4), you would expect to find London dispersion forces. Carbon tetrachloride is a nonpolar molecule, so it does not have dipole-dipole or hydrogen bonding interactions.
Is pure sodium a covalent or ionic bond?
Pure, elemental sodium is neither. Any element in its elemental form has no bonding unless it's a diatomic molecule such as Hydrogen, H2, or a covalent network such as some forms of carbon, in which case that would be a covalent bond.
In a pure sodium are there molecular bonding?
in pure metals, there is molecular bonding. These bondings are known as metallic bonds.
How many moles are there in 2.50 moles of sodium?
Sodium in its elemental form is just sodium metal, Na. Thus assuming that the sample of sodium is pure, there are 2.50 moles of sodium in a 2.50mol sample.
What type of solid is pure sodium classified as?
Pure sodium is a metallic crystalline solid.
What is the most important type of intermolecular forces between molecules in a sample of pure water?
Hydrogen bonding
How can you make a pure sample of sodium?
Sodium is to reactive for the average human to make. though scientists produce it every day in labs
Is NaCl a pure substance?
You could test a sample with a mass spectrometer, which would show all the elements present. If there are no elements present other than sodium and chlorine, then you have pure sodium chloride.
How many moles in 0.630gNaCl?
The formula mass of sodium chloride is 23.0 + 35.5 = 58.5 Amount of sodium chloride in a 0.630g pure sample = 0.0108mol
If a sample of pure sodium has a mass of 8.2 grams and sodium has an average atomic mass of 22.99 gmol how many sodium atoms are there in the sample?
To calculate the number of sodium atoms in the sample, first find the number of moles in the sample by dividing the mass (8.2 g) by the molar mass of sodium (22.99 g/mol). Then, use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles to atoms. Therefore, there are approximately 2.71 x 10^23 sodium atoms in a sample weighing 8.2 grams.
Why does a sample of pure sodium need to be kept in special oil so the air can't touch it?
Pure sodium is highly reactive with air and moisture, causing it to oxidize and form a layer of sodium oxide or hydroxide. This reaction can be exothermic and can lead to a fire or explosion in the presence of air. Storing pure sodium in oil creates a barrier between the sodium and air, preventing this dangerous reaction from occurring.
Why is sodium chloride a pure substance ispite the fact it contains two different elements?
Sodium chloride is a pure substance because it has a definite composition, NaCl, and cannot be broken down by physical means. It is not a mixture of sodium and chlorine, but is formed by the chemical bonding between ions formed from sodium and chlorine atoms, and has its own unique properties, different from either sodium or chlorine.
Is sodium metal composed of molecular crystals?
No, sodium metal is not composed of molecular crystals. Sodium metal is a pure elemental form of sodium, and it consists of a crystalline structure with a metallic bonding arrangement between the atoms.
Are diamonds an example of Metallic bonding?
No - pure covalent bonding
