Question

Given the unbalanced equation, Or(NO3)3 Caq)+LiOH Caq)., Li Noglaq) + Crcoth how many grams og Cr(OH), are produced from 1.159 g Cr(NOx), (s) The percent yeild for a given reaction is 51.%. If the theoretical amount is predicted to be 5.229. what was the actual yeild for the reaction ? The reachon between iron (I)oxide and aluminum, to produce aluminum Oxide and iron, has a heat oy reachon COH) equal to - 851.5 kJ/mole How much energy is released in kJ)ig 0.77 moles oy aluminum are consumed ? D. The reaction between nitrogen and oxygen gases requires the absorption g 43 kJoy energy per moll og nitrogen according to the following Chemical equation, Nalg) + O2(g) → 2ND (9). How many grams of No are produced the reaction 1 353 KJ of heat are absorbed by the reaction? OM worn 20 bang OTH on t he blog

Answer 1

ex (NO3)2 +34:04 3lino - CeCOH) molas mass of GCNO3)= 20e5 & moler man of Cy(OH)₂ = 44.5 238.0 qr 103 z 238.09 cr(NO3) gives 158 Cr(NO3) gives – & Actual amount xlor 103.0 of celela 103 x1.15 = Te: 498] (6106) 238 lo . Theoretice amont Actual yield - 5.22x 512 [ 2.66 g Fe Oz +2A1 - Al2O3 +2Fe of SH = -851.5 kellot Energy released - 851. 5 0 77 = 1327.8 kJ Na + 2NO SH = 43 kJ 43 kJ Heat produced 353 ks Heat Preduces - 60.09 No 60 x 353= 1492.69 No (Molor man of NO = 300 g)