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If you are given a aluminium sphere with a mass of 0.0679kg and its atomic number and mass number which is 13 and 26.982 respectively.The question is how many electrons in kg of a sphere?
I assume you mean how many electrons in 0.0679 kg? Or why else have that number. 0.0679 kg Al (1000 grams/1 kg)(1 mole Al/26.982 grams)(6.022 X 10^23/1 mole Al) = 1.5 X 10^24 atoms ------------------------------------now you were given that number 13 for a reason. that many electrons in aluminum 1.5 X 10^24 atoms Al * 13 electrons per atom Al = 1.97 X10^25 electrons in mass of aluminum ( might call it 2.0 X 10^25 )
How many pounds of aluminum would contain 2.43 x 1023 atom?
2.43 X 1023 atoms aluminum (1 mole Al/6.022 X 1023)(26.98 grams/1 mole Al)(1 pound/454 grams) = 0.024 pounds of aluminum ==================( about 2/5 of an ounce )
What is the number of atoms in 4.1x10-5 of Al?
I assume you mean grams of aluminum. 4.1 X 10 -5 grams aluminum (1 mole Al/26.98 grams)(6.022 X 1023/1 mole Al) = 9.2 X 1017 atoms of aluminum ------------------------------------------
How many atoms are present in 4.2 moles of aluminium?
A mole is 6.022x1022. Therefore, 5.75x1024/6.022x1022 = 95.482323 moles (9.55 moles of Al).________________________________________________________________Source: e2020
How many atoms of oxygen are there in 698 grams of AlNo33?
Quite a few! 698 grams Al(NO3)3 (1 mole Al(NO3)3/213.01 grams)(9 moles O/1 mole Al(NO3)3)(6.022 X 1023/1 mole O) = 1.78 X 1025 atoms of oxygen ======================
How many atoms in one mole of phosphorus vapour?
Avogadro's number: 6.02 × 1023. A mole of anything is Avogadro's number.
If you are given a aluminium sphere with a mass of 0.0679kg and its atomic number and mass number which is 13 and 26.982 respectively.The question is how many electrons in kg of a sphere?
I assume you mean how many electrons in 0.0679 kg? Or why else have that number. 0.0679 kg Al (1000 grams/1 kg)(1 mole Al/26.982 grams)(6.022 X 10^23/1 mole Al) = 1.5 X 10^24 atoms ------------------------------------now you were given that number 13 for a reason. that many electrons in aluminum 1.5 X 10^24 atoms Al * 13 electrons per atom Al = 1.97 X10^25 electrons in mass of aluminum ( might call it 2.0 X 10^25 )
How atoms in a kilogram of aluminum?
There are 13 electrons in an Aluminum atom.
How many pounds of aluminum would contain 2.43 x 1023 atom?
2.43 X 1023 atoms aluminum (1 mole Al/6.022 X 1023)(26.98 grams/1 mole Al)(1 pound/454 grams) = 0.024 pounds of aluminum ==================( about 2/5 of an ounce )
How many protons does an atom of aluminium contain?
Atomic number of Al is 13. It contains 13 protons.
What is the number of atoms in 4.1x10-5 of Al?
I assume you mean grams of aluminum. 4.1 X 10 -5 grams aluminum (1 mole Al/26.98 grams)(6.022 X 1023/1 mole Al) = 9.2 X 1017 atoms of aluminum ------------------------------------------
How many atoms are present in 4.2 moles of aluminium?
A mole is 6.022x1022. Therefore, 5.75x1024/6.022x1022 = 95.482323 moles (9.55 moles of Al).________________________________________________________________Source: e2020
Does a mole of Al and a mole of Mg have the same mass?
no it does not!
How many moles og Al are in 2.16 mol of Al2O3?
so you find the ratio of Aluminum to Oxygenin this case it is 2:3and then because the total mole is 2.16for aluminum:2.16/5*2 = 0.864for oxygen:2.16/5*3 = 1.296hope this helped :D
How many moles of aluminum oxide (Al2O3) are formed in the reaction Fe2O3 plus 2Al and rarr Al2O3 plus 2Fe?
Fe2O3 + 2Al ===> Al2O3 + 2FeIn this reaction the number of moles of Al2O3 produced is dependent on the number of moles of Fe2O3 and Al that one starts with. For every 1 mole Fe2O3 and 2 moles Al, one gets 1 moles of Al2O3.
How many atoms of oxygen are there in 698 grams of AlNo33?
Quite a few! 698 grams Al(NO3)3 (1 mole Al(NO3)3/213.01 grams)(9 moles O/1 mole Al(NO3)3)(6.022 X 1023/1 mole O) = 1.78 X 1025 atoms of oxygen ======================
What is the oxidation number of AlF6-3 central atom?
The oxidation number of the central atom Al in AlF6^3- is +3. This is because each F atom contributes a -1 charge, and the overall charge of the complex ion is -3, so the Al atom must have a +3 oxidation state to balance it out.
