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How many atoms are in the element copper and in the element carbon and in the element aluminum and how many atoms are in baking soda and how many atoms are in a sugar cube?
There are no "atoms in an element," but rather atoms OF an element. If you are trying to find the number of atoms in a sample of a pure element you divide its weight by its molar mass and then multiply by 6.022 x 10^23 to get the answer in atoms. The answer options are 2,3, or 4.
How many sodium atoms make up the sodium element?
23 g of sodium metal will have 6.023 x 1023 atoms (or 1 mole of atoms)
How many atoms are in 70.620 g of rhenium?
To determine the number of atoms in a given mass of an element, you need to know the molar mass of that element. The molar mass of rhenium (Re) is 186.207 g/mol. To find the number of atoms in 70.620 g of rhenium, divide the given mass by the molar mass, and then multiply by Avogadro's number (6.022 x 10^23). This gives approximately 1.590 x 10^23 atoms of rhenium.
How atoms and elements differ from one another?
An element is a composition of many atoms. Thus you can hold NaCl (salt) in your hand. You can't hold the atoms it makes up.
How many grams are there in 7.4 x10 to the 24th power atoms of silver?
To convert atoms to grams, you need to know the molar mass of the element. The molar mass of silver is 107.87 g/mol. First, calculate the number of moles in 7.4 x 10^24 atoms by dividing by Avogadro's number (6.022 x 10^23). Then, multiply the number of moles by the molar mass of silver to get the mass in grams.
How would we know how many moles are in a certain element?
number of moles = mass of the element/molar mass of the element
What does the molar mass of an element or compound tell you?
How many grams of the substance are in a mole of the substance. The molar mass of Carbon, for example, is 12 g/mol. This means that every 6.02*10^23 atoms mass 12 grams.
What is right numerically atoms for gold to be element?
Gold is the element gold no matter how many atoms of it you have.
How do you convert atoms to grams with Avogadro's number?
divide the number of atoms by avogadros number (6.022*10^23), the resulting number is the number of moles you have. Multiply the number of moles of atoms by the molar mass (found on any periodic table) and the answer is how many grams of the substance you have.
How are atoms and elements relate?
How are elements and atoms related? An element is a substance that contains only a single type of atom. The number of atoms is not important as long as all the atoms are of the same type. You cannot separate an element into other substances..... there are as many elements as atoms - more them 100.
How many atoms in c8h18?
There are 8 carbon (C) atoms and 18 hydrogen (H) atoms in C8H18.
What is the molar mass of KOH?
molar mass is the mass of one mole of a substance. A mole is an amount, refers to Avogadros number which is 6.022 x 1023. a mole of atoms is that many atoms. therefore the molar mass of potassium hydroxide KOH is the mass of that many molecules of KOH. On the periodic table the mass number for each element is molar, so all you need to do is add together the molar mass of each element in the compound. Molar mass of potassium (K) is 39 Molar mass of oxygen (O) is 16 Molar mass of hydrogen (H) is 1 There is one of each of these elements in a molecule of potassium hydroxide therefore the molar mass = 39 + 16 + 1 = 56
