In determining the answer, we need to convert 880 torr to atm.
880 torr(1 atm/760 torr) = 1.157894737 atm (760 torr equals 1 atm)
Since water boils at 100 degrees Celsius at 1 atm, we multiply 1.157894737 atm with 100 degrees Celsius =
we would get 115.7894737 degrees Celsius.
According to the given reaction, 2 moles of As react with 6 moles of NaOH. Use this ratio to find how many moles of NaOH react with 492 moles of As.
It means that you need 1476 moles of NaOH to use 492 moles of As all up.
Answer:
6.022 × 10²² atoms
Explanation:
Generally 1 mol of any element contains 6.02×10^23 atoms. The number 6.022 × 10²³ is known as Avogadro's number.
Mass of Aluminium = 2.70g
Molar mass = 27g/mol
Number of moles = Mass / Molar mass = 2.70 / 27 = 0.1 mol
1 mol = 6.022 × 10²³
0.1 mol = x
x = 6.022 × 10²³ * 0.1 = 6.022 × 10²² atoms
