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3.9 moles of atoms
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∙ 11y ago
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How many molecules are in 39 moles of neon?
1 mole = 20.18 g of Neon = 6.023 x 1023 atoms of neon (A neon molecule has only one atom) So, 39 moles = 39 x 6.023 x 1023 atoms = 234.897 x 1023 atoms of neon
How many moles are in 48g of KCl?
KCl has a molar mass of 39+35.5=74.5g/mol, and 48/74.5=0.64mol.
What is the atomic number of potassium and sodium?
Potassium is a non metal element. Atomic number of it is 39.
How many neutrons are in an atom of this isotope if the atomic number of yttrium is 39 and the atomic mass of the isotope is 89?
50 because 89(the atomic number, which is the amount of protons+the amount of neutrons)-39(the amount of protons) is 50
An atoms of potassium has atomic mass of 39 amu and an atomic number it therefore has neutrons in its nulces?
17. (:
How many molecules are in 39 moles of neon?
1 mole = 20.18 g of Neon = 6.023 x 1023 atoms of neon (A neon molecule has only one atom) So, 39 moles = 39 x 6.023 x 1023 atoms = 234.897 x 1023 atoms of neon
How many moles are in 48g of KCl?
KCl has a molar mass of 39+35.5=74.5g/mol, and 48/74.5=0.64mol.
How much sodium in kosher salt?
Table salt and kosher salt are both 39% sodium by weight.
How many atoms are there in 39 g of potassium?
The atomic mass of potassium is 39 ,therefore the number of mole is 39 /39,which is 1then multiple by Avogadro number you get 6.022*10^24
How many atoms of krypton are in 2.50 moles of Kr gas?
The mass in grams of KBr contained in 2.50 moles of the compound is 2.5 times the sum of the gram atomic masses of hydrogen and bromine, or 2.50(1.008 + 79.904) or 202 grams, to the justified number of significant digits.
How many moles of potassium are contained in 449 g of potassium?
449 g K x 1 mole K/39 g K = 11.5 moles (3 sig figs)
What is the precent of increase 20 to 39?
percent increase = (new amount - original amount)/original amount = (39 - 20)/20 = 19/20 Increase is 19/20, ie 95%
What is the molarity of 0.1 normal KMnO4?
The formula mass of KMnO4 is 158.0Amount of KMnO4 = mass of sample / molar mass = 100/158.0 = 0.633 molThere are 0.633 moles in 100g of potassium permanganate.
What is the atomic number of potassium and sodium?
Potassium is a non metal element. Atomic number of it is 39.
Lisa has a certain amount of money she spent 39 dollars and has 75 of the original amount how much money did she have originally?
If Lisa had a certain amount of money and spent $39 of it and has 75% of the original amount left then Lisa originally started out with $156.00.
How many neutrons are in an atom of this isotope if the atomic number of yttrium is 39 and the atomic mass of the isotope is 89?
50 because 89(the atomic number, which is the amount of protons+the amount of neutrons)-39(the amount of protons) is 50
What is the highest amount of quest points you can get as a non member?
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