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There are many different sizes and weights of gold bars or ingots. Everything from 1 gram to 50 pounds depending on the smelter. The gold in Fort Knox, however, is said to be held in standard 400 troy ounce (12.4 kg or 27.4 lb avoirdupois) gold bars which would be bars that are roughly 7 inches by 3 inches by 2 inches (18 cm x 7 cm x 5 cm). At a gold price of $850 per ounce, a standard gold ingot would be worth about $350,000.
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What is the mass of 175 atoms of gold?
equation: g= 175 atoms x 1 mol/6.02x10^23 x 196.97g/1 mol ---> 175 atoms of gold weigh 5.73x10^-20 grams.
How many atoms does 4KNO3?
One mole of KNO3 contains 4 potassium atoms, 4 nitrogen atoms, and 12 oxygen atoms, giving a total of 20 atoms.
How many atoms do Ca have?
There are 20 protons in a calcium atom. You can find the number of atoms in any element by looking at the atomic number which is in the top right corner of the element's box on the periodic table. e.g. Ca 20 40.078
A sample of gold has a mass of 5.00 x 10-3g. what amount of gold in atoms does the sample contain?
To determine the number of gold atoms in the sample, you can use the molar mass of gold (197 g/mol) to first find moles, then convert moles to atoms using Avogadro's number (6.022 x 10^23 atoms/mol). First, find moles: 5.00 x 10^-3 g ÷ 197 g/mol = 2.54 x 10^-5 mol. Then, convert moles to atoms: 2.54 x 10^-5 mol x 6.022 x 10^23 atoms/mol = 1.53 x 10^19 atoms.
How many atoms are in one molecule of Tylenol?
There are 22 atoms in one molecule of Tylenol (chemical name: acetaminophen). This includes 9 carbon atoms, 8 hydrogen atoms, 1 nitrogen atom, and 4 oxygen atoms.
How many atoms are in an equivalent of calcium?
there are 20 atoms in calcium
How many many atoms and what kinds of atoms are in C6H8O6?
There are 20 atoms and there are 6 Carbon atoms, 8 Hydrogen atoms, 6 Oxygen atoms.
How many atoms are in the element C8H12?
C8H12 8 Carbon atoms + 12 Hydrogen atoms = 20 atoms total
What is the mass of 175 atoms of gold?
equation: g= 175 atoms x 1 mol/6.02x10^23 x 196.97g/1 mol ---> 175 atoms of gold weigh 5.73x10^-20 grams.
How many hydrogen atoms are in a molecule of borax?
The borax decahydrate - Na2B4O7.10 H2O has 20 H atoms in the molecule.
How many atoms are there in 20 mole of sulphur?
20 moles x 6.02x10^23 atoms/mole = 1.2x10^25 atoms
How many moles of He are 1.201025 atoms He?
20 moles
How many hydrogen atoms are in a molecule of borax (Na2B4O710H2O)?
20
How many individual oxygen atoms are present in 20 moles of oxygen gas?
20 x 2 x 6.022x1023 = 2.409x1025 atoms of oxygen
How many penny weights is in an ounce of gold?
There are 20 pennyweights in an ounce of gold.
How many pennyweight in 1oz of gold?
20 pennyweight.
How many gold medals did the GB win?
20
