<span>c = speed of light = 3.00 x 10^5 km/s = 3.00 x 10^8 m/s
λ = wavelength of the microwave radiation = 3.50 cm = 0.035 m
f = frequency (in Hertz) = to be determined
f = c/λ = 3.00 x 10^8 m/s / 0.035 m
f = 8.57 x 10^9 Hz Frequency</span>
I think answer should be the last option I hope this helps let me know if it’s correct thanks
I belive its b
hope this helps :)
2Al + 3CuCl2 ------> 3Cu + 2AlCl3
from reaction 2 mol 3 mol
given 0.357 mol x mol
x= 0.375*3/2 = 0.563 mol CuCl2