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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 ------------------------------------------
Does a mole of Al and a mole of Mg have the same mass?
no it does not!
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 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.
