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Arsenic is a non metallic element. Mass number of it is 75.
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∙ 9y ago
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∙ 14y agoTo three significant figures, the mass of arsenic is 74.922
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∙ 11y ago25
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∙ 11y ago75
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How many gram are in 238 moles of arsenic?
Atomic mass of Arsenic = 74.9g/mol Using the formula: mass = Atomic mass x number of moles mass = 74.9g/mol x 238 mol = 17826.2 grams
How many atoms are there in 3.5 moles of arsenic?
In one mole of Arsenic contains 6.02 x 10^23 atoms. This is the Avogadro's number. So in 3.5 moles of Arsenic, there would accordingly be 2.11 x 10^24 atoms.A mole of As has the Avogadro number of moles. It is equivalent to 6.022 x 10^23. Therefore, 3.5 moles of the element contains 2.11 x 10^24 atoms of Arsenic.
What element has the atomic number 77?
Well, I couldn't get any stable element with mass number of 77. However the closest ones are arsenic with mass number 75 or selenium with mass number 79. Note: All the following elements listed below have isotopes with mass number 77, but are unstable with half life ranging from a few hours to nano seconds: Nickel, Copper, Zinc, Galium, Germanium, Arsenic, Selenium, Bromine, Krypton, Rubidium, Strontium and Yttrium. If you had meant atomic number, then iridium has the atomic number of 77.
What element has 21 neutrons and 40 mass number?
as it is actually "As" the "A" has to be capitalized to be correct, or it could stand for something totally different. In addition to the above, it might be helpful to see how the answer is derived:- First deduct the number of neutrons from the mass number - 73 minus 40 equals 33 This gives the Atomic Number 33. Reading down the Periodic Table to find element number 33, we find that it is Arsenic, chemical symbol As.
What is the name of the compound with the formula of AsF5?
The compound AsF5 is arsenic pentafluoride.
What group number is arsenic in?
Arsenic As. 33(Atomic Number) 75(Relative Atomic Mass)
What is the mass number of As-3?
Arsenic is a non metallic element. Mass number of it is 75.
How many subatomic particles are in arsenic?
Arsenic has 33 electrons and protons; the number of neutrons is specific for each isotope. Number of neutrons in an arsenic isotope = Mass number - 33
Which element has atomic number of 33 and mass number of 67?
Arsenic has atomic number of 33 and mass number of 67.
What is the atomic number in arsenic?
Atomic number: 33 (Atomic mass: 74.92)
What is arsenics mass number?
Arsenic is a non metal element. Atomic mass of it is 75.
In the notation arsenic-76 the number 76 represents?
This the mass number of the isotope As-76.
What mass of arsenic in grams contains the same number of atoms as 39.95 g of Argon?
74.92 grams of arsenic, approx.
How many gram are in 238 moles of arsenic?
Atomic mass of Arsenic = 74.9g/mol Using the formula: mass = Atomic mass x number of moles mass = 74.9g/mol x 238 mol = 17826.2 grams
What is the mass number of AS?
Asenic is a non metal element. Atomic mass of it is 75.
What element has the number of proton of 33?
None - this is energetically impossible. However, all energetically possible combinations involving 33 protons would be of the element arsenic, As.
How many nuetrons are in arsenic?
42 neutrons Think of it this way: Arsenic 75. The number of protons and electrons of an element are always the same. Well, we obviously know that there are 33 electrons in arsenic from the periodic table, and therefore we have 33 protons. So, to find the number of neutrons is simple. The number of neutrons and protons added together will equal the mass number (75). So it is basic algebra. You want to think logically. Take75 (your mass number) and subtract 33 (the number of protons) and you will get 42. Hope that helps!
