Answer:
36.5 g CO2
Explanation:
First, Write a Balanced Equation
C + 2 ZnO → CO2 + 2 Zn
Useful Information,
MW of ZnO = 81.41 g
MW of CO2 = 44.01 g
135 g ZnO x (1 mol ZnO / 81.41 g ZnO) x (1 mol CO2/2 mol ZnO) x ( 44.01 g CO2 / 1 mol CO2 ) = 36.5 g CO2
It'd liquid because it's take up space and it doesn't have a definite shape
A is is a double replacement reaction (Cations and anions switch)
B is a Decomposition reaction (Breaks down into simpler substances)
C is a Synthesis or Combination reaction (both are the same thing)
D is a Combustion reaction (compound made of carbon and hydrogen reacts with oxygen)
and E is a Single replacement reaction (Cations trade)
Hope this helps! :)
Answer:
78.15 g
Explanation:
Number of moles of C₇H₆O₃ that reacted = mass/molar mass = 57.6g/126 gmol-1
Number of moles of C₇H₆O₃ = 0.457 moles of C₇H₆O₃
From the reaction equation;
1 mole of C₇H₆O₃ yields one mole of aspirin
0.457 moles of C₇H₆O₃ yields C₇H₆O₃ of aspirin
Hence theoretical yield of aspirin = 0.457 moles × 180 gmol-1 = 82.26g of aspirin
% yield = actual yield/theoretical yield ×100
Actual yield= % yield × theoretical yield/100
Actual yield = 95.0 × 82.26/100
Actual yield = 78.15 g
<span>The freezing point method will be no effect. Because both the normal freezing point and freezing point of the solution containing the solute will be 1 degree high.</span>