Radiation
hope that helped!
Answer: λ = 635 ~6.36 × 10^ −7 m
Explanation:
Explanation:
this explanation may help u to understand:)
Answer:
[C₅H₅N] = 1.34 X 10⁻⁵M
Explanation:
C₅H₅N(aq) having a pH of 9.17 would also have a pOH of 14 - 9.17 = 4.83.
Since Nitrogen derivatives form hydroxides in water then
C₅H₅N + H₂O => C₅H₅N:HOH => C₅H₆OH⁻ <=> C₅H₆⁺ + OH⁻
The [OH⁻] = 10⁻⁴.⁸³M = 1.348 x 10⁻⁵M
Molar mass O2 = 31.99 g/mol
Molar mass CO2 = 44.01 g/mol
Moles ratio:
<span>C3H8 + 5 O2 = 3 CO2 + 4 H2O
</span>
5 x 44.01 g O2 ---------------- 3 x 44.01 g CO2
( mass of O2) ------------------ 37.15 g CO2
mass of O2 = 37.15 x 5 x 44.01/ 3 x 44.01
mass of O2 = 8174.8575 / 132.03
mass of O2 = 61.916 g
Therefore:
1 mole O2 ----------------- 31.99 g
moles O2 -------------------- 61.916
moles O2 = 61.916 x 1 / 31.99
moles = 61.916 / 31.99 => 1.935 moles of O2
