Question

answer sid dose to 48 Right ansaw c. 377.5 sos mas se esglass d. 12,100 g e. 369 g We can work with any unut as long as 31. How many grams of magnesium are required to produce 5.000 kg of Si? g bocog SiCl. + 2Mg → Si + 2MgCl2 Asix 2 mot ng 2x 277 885. Imotsi a. 7595 g 47 b. 7581 g 42.75 42 welc. 4327 g 24.23 d. 9999 g 55.99 e. 2164 g 12 _ 32. How many grams of oxygen are required to burn 0.10 mole of C-Hs? 48 5x 32 CzHg + 502 → 3CO2 + 4H20 olomat Imol CH my ansed a. 8.0 8 Jomal (3 Hp X 449 Cz Hq X-

can you please solve question # 31 step by step. The right answer is "a" but I got d.
Thank you

Answer 1

Mcq no 31.

Given option is wrong because correct answer is 8571.42 gms

From equation:

48 gms of Mg produced------>28 gms of Si

? - - - - ->5000 gms of Si

Gms of Mg required=5000*48/28

=8571.42 gms of Mg required

(don't worry, your answer is actually right)