IN CHEMISTRY. IO 9 



48. How much CO 2 is formed in the combustion of one 

 ton of Cl 



C : CO a : : 2000 Ibs. : x. 



12 : 44 : : 2000 Ibs. : x. 



12 x = 88,000 Ibs. 



* = 7333-33+ Ibs. (CO 2 ). 



49. What weight of C is there in a ton of CO 8 ? 



C : CO a : : x : 2000 Ibs. 



12 : 44 : : x : 2000 Ibs. 



44 x 24,000 Ibs. 



^ = 545-45 + Ibs. (C). 



50. How much O is consumed in burning a ton ofCJ 



In any quantity of CO 2 , -fj- of the compound is O, and 

 ^ C. If -j^- = 2000 Ibs. (CO 2 ), then -^ = f of 2000 Ibs. 

 = 5333-33 + Ibs. (O). 



51. What weight of sodium carbonate (Na 2 CO 3 , ioH 2 O, 

 " carbonate of soda ") would be required to evolve 12 Ibs. 

 <?/C0 2 ? 



CO a : Na a CO 3 , ioH a O : : 12 Ibs. : x. 

 44 : 286 : : 12 Ibs. : x. 



44 x = 2432 Ibs. 



x = 50.72 Ibs. (Na a CO 3 ,ioH a O). 



52. How much CO 2 will be formed in the combustion of 



CO : CO a : : 30 grs. : x, 



28 : 44 : : 30 grs. : x. 



28 x = 1320 grs. 



x = 47.14 grs. (CO a ). 



5 3 . What weight of hydrogen sodium carbonate ( H NaCO 3 , 

 " bi-carbonate of soda ") would be required to evolve 12 Ibs. 



C0 a : HNaC0 3 : : 12 Ibs. : x. 

 44 : 84 : .- 12 Ibs. : x. 

 44 x = 1008 Ibs. 



x = 22.9 Ibs. (HNaCO,). 



