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How many grams of bromine atoms are present in a 12.9 mole sample of pbr3?
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How many moles of bromine atoms are in 2.60x102 grams of bromine?
2,60x102 grams of bromine (Br) is equal to 1,627 moles Br2.
How many atoms are in sample of chromium with a mass of 13 grams?
Take the actual sample weight of 13grams, and divide it by the atomic weight of chromium. This gives you your molar percentage of atoms. Now multiply this molar percentage by Avogadro's constant, the number of atoms in one mole, and this will give you your number of atoms in the sample.
What is the mass of a sample of sodium that contains 2980 atoms?
Not much! 2980 atoms sodium [1 mole Na/6.022 X 1023 (atoms)][22.99 grams/1 mole Na] = 1.138 X 10 -19 grams sodium ====================
How many Sn atoms are there in a 86.0 gram sample of Sn?
86.0 grams Sn (1 mole Sn/118.7 grams)(6.022 X 1023/1 mole Sn)= 4.36 X 1023 atoms of tin=================
How many atoms and molecules are present in 64 grams of sulphur?
12.044*10^23 atoms 1.5055*10^23 S8 molecules
How many molecules of bromine are present in 120 grams of bromine gas?
904,000,000,000,000,000,000,000 (9.04 X 10^23) Bromine atoms.
How many moles of bromine atoms are in 2.60x102 grams of bromine?
2,60x102 grams of bromine (Br) is equal to 1,627 moles Br2.
How many grams are in 2.92 x 1023 atoms of tin?
There are 57.6 grams of tin in that sample.
How many grams of hafnium contains the same number of atoms as 10.7nanograms of bromine?
24,163 ng
Is The chemical formula CuBr2 that this compound is composed of 1 gram of copper and 2 grams of bromine?
It is 1 copper and 2 bromine but they are not grams they are atoms, it is a particle made up of 1 copper atom and 2 bromines
How many atoms of aluminum are there in a sample of aluminum sulfide with a mass of 100 g?
Aluminum sulfide has a molar mass of 150.16 grams per mole. This means there are 0.666 moles present, or 4.01 E23 molecules. Each molecule of Al2S3 has 2 aluminum atoms, so there are 8.02 E23 atoms of aluminum present.
How many grams would a sample of 3.01 x 1023 atoms of tellurium be?
63.8g
How many atoms are in sample of chromium with a mass of 13 grams?
Take the actual sample weight of 13grams, and divide it by the atomic weight of chromium. This gives you your molar percentage of atoms. Now multiply this molar percentage by Avogadro's constant, the number of atoms in one mole, and this will give you your number of atoms in the sample.
How many grams of bromine contain 602200000000000000000000 atoms?
Taking Avogadro constant to be 6.022 X 1023The no. corresponds to 1 mol Br atoms = 80 g(Approx)
What is the atomic weight used for?
You can use atomic weight to calculate the number of atoms in a given sample of an element. # g of sample element x (6.02 x 1023 / atomic weight in grams) = # of atoms
How many oxygen atoms are present in 1.659 grams of ozone gas?
1.659 [grams] / 47.998 [grams / mol] * 6.02214179(30)×1023 [molecules / mole] * 3 [atoms / molecule]. A bunch.
How many hydrogen atoms are present in 3.65 grams of water?
3.65 grams of water is equal to .203 moles of H2O. This means there is also .203 moles of H2 present, or .408 grams.
