tublackboardcory et app sane ment take arch/ ptorse ann tment id\" 2477691&cours

Question

tublackboardcory et app sane ment take arch/ ptorse ann tment id" 2477691&coursed-; 14 121 1,1&co; te tid. 4756431&st; p Status QUESTION 10 po How many grams of water are produced from the reaction of 40.3 g of oxygen according to thas equation? 2H2 (g) +02(g)2H2O(g) O A 22.78 O B 200 g OC 45.3 g O D. 40.3g QUESTION 10 poi What is the molar ratio between butene (C4H8) and water in combustion reaction of butene? OA 14 O846 OC 1.6 0011 10 poin QUESTION 7 Which of the following correctly illustrates the conservation of mass for the reaction below earch

Explanation / Answer

(5) Mass of oxygen = 40.3 g

Molar mass of O2 = 32 g/mol

Number of moles of O2 = 40.3 g / 32 g/mol = 1.26 mol

From reaction, 1.0 mol of O2 produces 2 mol of H2O, hence 1.26 mol of O2 will produce 2*1.26 mol = 2.52 mol of H2O

Molar mass of H2O = 18 g/mol

Mass of H2O produced = (18 g/mol)*2.52 mol = 45.3 g

(6) I am unable to read so I cannot answer

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