how to find number of atoms in a gram sample?
530489
To calculate the number of atoms in a sample, divide its weight in grams by the amu atomic mass from the periodic table, then multiply the result by Avogadro's number: 6.02 x 10^23.
237223
['Step 1: Obtain the mass of each element present in grams. Element % = mass in g = m.', 'Step 2: Determine the number of moles of each type of atom present. ... ', 'Step 3: Divide the number of moles of each element by the smallest number of moles. ... ', 'Step 4: Convert numbers to whole numbers.']
1163699
['C = 3.05 atoms.', 'H = 8.1 atoms.', 'O = 1 atom.']
25582
['Start with the number of grams of each element, given in the problem.', 'Convert the mass of each element to moles using the molar mass from the periodic table.', 'Divide each mole value by the smallest number of moles calculated.', 'Round to the nearest whole number. This is the mole ratio of the elements and is.']
634740
Answer Expert Verified 6.02 × 10²³ × 0.25 = 1.505 × 10²³ atoms.
87697
Thus, there are 3.35 * 10^22 molecules of water in 1 gram. Now, each molecule of water has 2 hydrogen atoms and 1 oxygen atom. This means that there are 3 atoms in each molecule.
36133
The answer is 3.012×1022. So now we know the number of atoms in a gram of sand, we've got to figure out how many grains of sand there are in a gram and multiply it by the number of atoms in that same weight. (Pssst, pay attention here) That means that there are 43 quintillion atoms in one grain of sand.
747887
To convert grams to moles, start by multiplying the number of atoms by the atomic weight for each element in the compound. Then, add all of your answers together to find the molar mass of the compound. Finally, divide the number of grams of the compound by the molar mass of the compound to find the number of moles.
1135248
One mole of any element has a mass in grams that is equal to its atomic number, and has exactly 6.02 x 1023 atoms - however because the atoms of each element have different sizes and weights, then the volume that each one occupies is different.
1201251
Divide given mass (in gram) of substance with its molecular mass, the number you get is number of moles. Here given mass is 4 gram and molecular mass of nitrogen is 28 (nitrogen has two atoms in each molecule and atomic weight of nitrogen is 14).
225992
For every mole, there are 6.02*10^23 atoms so in 1 gram of hydrogen there are 6.02*10^23 hydrogen atoms (in scientific notation) this is equal to 602000000000000000000000 hydrogen atoms.
257387
How many atoms of Ag? 1 mol = 6.022 x 1023 items, particles, things, etc.
728227
U mentioned element here so one gram atom of an element has 6.022×10^23 atoms :-) in oxygen(molar mass=16g/mol) 1g=1/16mol so it's 1/16 of the avogadro number.
403918
Start with the number of grams of each element, given in the problem. Convert the mass of each element to moles using the molar mass from the periodic table. Divide each mole value by the smallest number of moles calculated. Round to the nearest whole number.
113871
['The number of protons in the nucleus of the atom is equal to the atomic number (Z).', 'The number of electrons in a neutral atom is equal to the number of protons.']
698579
Ag atoms=15.0gAg ×1molAg 107.87gAg ×6.022×1023atoms1molAg =8.37×1022 atoms Ag .
846735
['Find Mass in Grams. Calculate the mass in grams of each reactant. ... ', 'Find Atomic Weight. Determine the atomic weight of each element using the periodic table. ... ', 'Calculate Grams per Mole. ... ', 'Divide Grams by Grams per Mole. ... ', 'Find Reaction Coefficients. ... ', 'Determine Limiting Reactant. ... ', 'Determine Product Mass. ... ', 'Compare Reaction Results.']