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Neon is a monatomic gas (1 atom/entity), so finding the number of atoms is as simple as multiplying the quantity of gas by the number of entities in a mole:
(5.00 moles Ne gas) (6.022 X 1023 entities/1 mole Ne gas) (1 atom of Ne/entity)
= 3.01 X 1024 atoms of Ne
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You may notice that if the units are treated as factors, they cancel, leaving the desired unit (atoms) at the end.
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One 55-gram serving of a particular cereal supplies 270 mg of sodium 11 of the recommended daily allowance. How many moles and atoms of sodium are in the recommended daily allowance?
The recommended daily allowance of sodium is approximately 2,300 mg. To find the number of moles, divide this amount by the molar mass of sodium (approximately 23 g/mol): ( \frac{2300 , \text{mg}}{23,000 , \text{mg/mol}} \approx 0.1 , \text{mol} ). Since one mole of sodium contains Avogadro's number (approximately ( 6.022 \times 10^{23} )) of atoms, the total number of sodium atoms in the recommended daily allowance is about ( 0.1 , \text{mol} \times 6.022 \times 10^{23} , \text{atoms/mol} \approx 6.022 \times 10^{22} ) atoms.
How many liters of water can be made from 5 L of oxygen gas and an excess of hydrogen?
55 grams O2 × (1 mol O2 ÷ 32 g O2) × (2 mol H2O ÷ 1 mol O2) × (22.4 L ÷ 1 mol H2O) = 77 L H2O(g)In the liquid form, it works out to just under 62 milliliters.
How do you find the mol of Ca 50g?
Calcium is 40g per mole (according to the periodic table,) so 50/40=1.25 moles.
How many neutrons are in an atom of cesium 137?
In atomic form (as opposed to being an ion), cesium-137 has 55 electrons, just as all cesium atoms have.
How many ounces is .55 lbs?
16 X 55 = 880.
One 55-gram serving of a particular cereal supplies 270 mg of sodium 11 of the recommended daily allowance. How many moles and atoms of sodium are in the recommended daily allowance?
The recommended daily allowance of sodium is approximately 2,300 mg. To find the number of moles, divide this amount by the molar mass of sodium (approximately 23 g/mol): ( \frac{2300 , \text{mg}}{23,000 , \text{mg/mol}} \approx 0.1 , \text{mol} ). Since one mole of sodium contains Avogadro's number (approximately ( 6.022 \times 10^{23} )) of atoms, the total number of sodium atoms in the recommended daily allowance is about ( 0.1 , \text{mol} \times 6.022 \times 10^{23} , \text{atoms/mol} \approx 6.022 \times 10^{22} ) atoms.
How many representative particles are in 2.5 mol H2O2?
whats the difference between mass and weight
How many liters of water can be made from 5 L of oxygen gas and an excess of hydrogen?
55 grams O2 × (1 mol O2 ÷ 32 g O2) × (2 mol H2O ÷ 1 mol O2) × (22.4 L ÷ 1 mol H2O) = 77 L H2O(g)In the liquid form, it works out to just under 62 milliliters.
What is the range in size of atoms?
It is between 1 and 55 Angstroms.55 Angstroms equates to 5.5 nanometers.
How many molecules are contained in 55 grams of sulfuric acid?
To calculate the number of molecules in 55 grams of sulfuric acid (H2SO4), you first need to determine the molar mass of sulfuric acid, which is 98.08 g/mol. Next, find the number of moles in 55 grams by dividing the mass by the molar mass. Finally, use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules.
Whats the biggest 15 inch tire you can put on a neon without rubbing?
205/55/15
Is it OK to have in my 55 liters tank neon tetras and mollies together?
Provided you are not overstocking they should be OK.
What is the mass of 2.55 mol of KMnO4?
To find the mass of 2.55 mol of KMnO4, you can use the molar mass of KMnO4, which is approximately 158.034 g/mol. Multiply the molar mass by the number of moles: 158.034 g/mol * 2.55 mol = 402.84 g. Therefore, the mass of 2.55 mol of KMnO4 is 402.84 grams.
What is the element that has a mass of 55 and contains 30 neutrons in its atoms?
The element with a mass of 55 and 30 neutrons in its atoms is zinc (Zn). This can be determined by subtracting the number of neutrons from the atomic mass of the element.
How many carbon atoms are there in a diamond with a mass of 52mg?
A diamond is pure carbon, less subtle impurities, so..., 55 mg (1 gram/1000 mg)(1 mole C/12.01 grams)(6.022 X 1023/1 mole C) = 2.6 X 1021 atoms of carbon ==================
How many atoms are in chlorophyll?
Since there are many different chemical compounds which contain chlorine and hence are described as chlorides, there is no specific number of atoms in a chloride. There do have to be at least two, but it could be much more.
How may protons does caesium have?
there are 55 protons Cs in the periodic table .
