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How do the atoms from one sample of the element carbon compare to the atoms of another sample of carbon?
They are usually identical. However, in special circumstances, such as when the carbon is derived from an ancient organism, the fractions of particular isotopes may vary. Atoms of a single isotope of carbon in their ground state are always identical, irrespective of source.
Which sample contains a mole of atoms?
A mole of atoms is defined as 6.022 x 10²³ atoms, which is Avogadro's number. Therefore, any sample containing this number of atoms, regardless of the element or compound, contains a mole of atoms. For example, a sample of 12 grams of carbon-12 (C-12) contains exactly one mole of carbon atoms. Similarly, a sample of any substance with a molar mass equal to its atomic or molecular weight in grams will also contain a mole of atoms when measured in that amount.
3 ways carbon atoms return to the nonliving part of the carbon cycle?
Decomposition of dead organisms releases carbon back into the atmosphere and soil. Burning of fossil fuels releases stored carbon back into the atmosphere as carbon dioxide. Weathering of rocks can release carbon into the soil and ocean, where it can be stored for extended periods.
How many moles of O atoms are present in a 254g sample of carbon dioxide?
To find the number of moles of oxygen atoms in a 254 g sample of carbon dioxide (CO₂), first calculate the molar mass of CO₂, which is approximately 44 g/mol (12 g/mol for carbon and 32 g/mol for two oxygen atoms). The number of moles of CO₂ in the sample is 254 g ÷ 44 g/mol = about 5.77 moles. Since each molecule of CO₂ contains two oxygen atoms, the total number of moles of oxygen atoms is 5.77 moles × 2 = approximately 11.54 moles of O atoms.
Do chemical formulas show the total number of atoms in a sample of a compound?
Yes, chemical formulas show the number of atoms in a compound. Water is H2O -- two hydrogen atoms bonded to one oxygen atom. Carbon dioxide is CO2 -- one carbon and two oxygen atoms.
According to Dalton how do the atoms from one sample of the element carbon compare to the atoms of another sample of carbon?
They are identical.
How many carbon atoms are there in a 12.5 kg sample of carbon?
The answer is 6,2729.10e+26 carbon atoms.
How do the atoms from one sample of the element carbon compare to the atoms of another sample of carbon?
They are usually identical. However, in special circumstances, such as when the carbon is derived from an ancient organism, the fractions of particular isotopes may vary. Atoms of a single isotope of carbon in their ground state are always identical, irrespective of source.
How many C-13 atoms are present on average in a 13000-atom sample of carbon?
Carbon-13 make up 1.1% of carbon atoms. .011 x 19000 carbon atoms = 209 carbon-13 atoms present.
Is there carbon atoms in a pickle?
Naturally. Carbon atoms are present in everything that are organic or are organic derivatives. In any substance obtained from plants or animals, carbon atoms are naturally present.
Which has more atoms 12 grams of carbon or 32 grams of carbon?
Both samples contain the same number of carbon atoms because the number of atoms in a sample is determined by Avogadro's number (6.022 x 10^23) and not by the mass of the sample itself.
What are three ways carbon atoms return to thr nonliving part of the carbon cycle?
Cellular respiration, combustion, and decomposition.
During the carbon cycle in what form are carbon atoms generally returned to the atmosphere?
Carbon atoms are generally returned to the atmosphere in the form of carbon dioxide (CO2) through processes like respiration, decomposition, and combustion.
Which sample contains a mole of atoms?
A mole of atoms is defined as 6.022 x 10²³ atoms, which is Avogadro's number. Therefore, any sample containing this number of atoms, regardless of the element or compound, contains a mole of atoms. For example, a sample of 12 grams of carbon-12 (C-12) contains exactly one mole of carbon atoms. Similarly, a sample of any substance with a molar mass equal to its atomic or molecular weight in grams will also contain a mole of atoms when measured in that amount.
A carbon-14 sample starts with 100 atoms and 5730 years later there are 50 atoms. What is the half-life of carbon-14?
The half-life is 5730. This is because the half-life is the amount of time it takes for half of a sample to decay. In this case, the sample is 100 atoms, and half of 100 is 50, so the amount of time it takes the sample to reach 50 atoms is it's half life...5730!
Is carbon monoxide an element or a compound mixture?
Pure carbon monoxide is a compound, containing equal numbers of carbon and oxygen atoms in any sample of the compound.
3 ways carbon atoms return to the nonliving part of the carbon cycle?
Decomposition of dead organisms releases carbon back into the atmosphere and soil. Burning of fossil fuels releases stored carbon back into the atmosphere as carbon dioxide. Weathering of rocks can release carbon into the soil and ocean, where it can be stored for extended periods.
