Question

Most of the lithium used in a variety of applications comes from brine water sources like briny lakes. How many grams of Li are necessary to produce 59.5 grams of L3N? 6 Li(s) + N2(g) + 2 Li3N(S) use 1 decimal place for the answer and without scientific notation Type your answer... ! 1 point Theoretically, one of the electron transitions for hydrogen occurs when an electron in the n= 9 level moves to n = 1 level and emits a photon. What is the wavelength of the photon emitted, in nm? Please round your answer to the ones place and don't use scientific notation. Type your answer...

Answer 1

change of 0 але 3 g/mole Atomic and 7 g/mole 14 g/mole Ne respectively. masses of Li and N moleculan weight of of Lian 75 g/mole and that 2 Lian (s) 6 Li(s) + N2 (9) 59.5 mole Lign 59.5 g Lian 35 Liis 6 mole balanced reaction the According to Liz N. Hence, Produce mole 2 mole x 59. 35 needed Produce Lign moles of Li needed 159.5 mole 5.1 mole Li = 5.1 5-1*7) g Li = 35.7 g Li 5.1 mole needed . 2: is Hence, 35.7 g ds in Ho actom is expressed of Energy election 20 m z²e4 En n²4² at mo mass -27 esu емет 47 nith level of election g.lx10 change (neuclear] of t= 1 Planck's Constant = 6.626x10 eng - see election = 4,8x10-10 difference емел 49 between n=1 and AF = E-E 21 พ7.1 level n=9 h² Photon be u IM Wavelength of he [ca exermet emited Velocity of 3x10 10 cm/s liether] then

(4 안 규m 2e4 ch 크 2nx 91 93 4.8×10 17 3 10 3시이 (42.6x10 ) 107911 cm-l -6 9.267×lo cm don) MM 1079 T 7 0 cm = 107 um 1 cm - 8,267x106 1 ㅌ 10 92-668 mm rounded to one Place 9207 mm decimal 927 mm- of Hence, wavelength the Photon emitted