Answer:
Mass = 13.23 g
Explanation:
Given data:
Mass of oxygen = 48.0 g
Mass of propane burn = ?
Solution:
Chemical equation:
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
Number of moles of oxygen:
Number of moles = mass/molar mass
Number of moles = 48.0 g/ 32 g/mol
Number of moles = 1.5 mol
now we will compare the moles of propane and oxygen.
O₂ : C₃H₈
5 : 1
1.5 : 1/5×1.5 = 0.3 mol
Mass of propane burn:
Mass = number of moles × molar mass
Mass = 0.3 mol × 44.1 g/mol
Mass = 13.23 g
Because sucrase will react with product and lower his concentration, so measurement of product concentration will not be accurate.
Sucrase activity is greater when sucrose concentration went from 2.5 to 7.5 g/l, because difference (increase<span>) between two concentration (numbers) is greater.</span>
The answer for this question is:
B. Scientific notation is used to keep track of very small and very large numbers during mathematical calculations.
When wood burns, some of the mass is released as a gas. So if you were to combine the small fraction of ash with the gases released, you would get the mass of the original wood.
If a freezer is not cold, maybe the condenser coils are dirty. You should clean these every 6-12 months. If not check the evaporator fan motor, it draws air over the evaporator coil and circulates it through the freezer. Your last option is to start relay, the start relay provides power to the compressor. Hope this helped!
