DIRECTIONS: This series of questions deal with wavelength (λ), frequency (ν), and energy (E) of certain kinds of light. In each problem, one variable is given. You must find the other two. ν = 4.5 x 10 13Hz

E = 8.62 x 10-18 J

λ = 1250 nm

ν =8.22 x 10 15 Hz

E = 1.22x 10-20 J

λ = 355. nm

ν =3.362 x 10 14 Hz

E = 3.604 x 10-17 J

the answer isI'll send you later and send the photo of this answer and I will send you at this and I'll send you ok then you can help helpful for rich ke

the maximum mass of nh3 is nh3 in grams

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o