A certain reaction has a percent yield of 73.60%, and a chemist needs to synthes

Question

A certain reaction has a percent yield of 73.60%, and a chemist needs to synthesize (get an actual yield of) 100.0 g. What theoretical yield should the chemist plan for to get an actual yield of 100.0 g?

113.5 g

135.9 g

84.92 g

173.6 g

123.7 g

A 45.0 g piece of metal is heated to 632.0

113.5 g

135.9 g

84.92 g

173.6 g

123.7 g

A certain reaction has a percent yield of 73.60%, and a chemist needs to synthesize (get an actual yield of) 100.0 g. What theoretical yield should the chemist plan for to get an actual yield of 100.0 g? 113.5 g 135.9 g 84.92 g 173.6 g 123.7 g A 45.0 g piece of metal is heated to 632.0 degree C and dropped into 200.0 g of water initially at 22.0 degree C. The final temperature of both the metal and the water is 26.2 degree C. What is the identity of the metal? (Cs water = 4.184 J/(g. degree C)) Silver (Cs = 0.230 J/(g. degree C)) Iron (Cs = 0.450 J/(g. degree C)) Gold (Cs = 0.129 J/(g. degree C)) Scandium (Cs = 0.570 J/(g. degree C)) Copper (Cs = 0.385 J/(g. degree C)) Calculate ?Hrxn for the following reaction using the table provided below: H2O (g) + C (s, graphite) ? H2 (g) + CO (g) +131.3 kJ -140.3 kJ -678.9 kJ -802.5 kJ +172.5 kJ

Explanation / Answer

113.5 g

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