x(0.5)(320)=(1.2)(48)(325)
160x=18720
x=18720/160
x=117
3 significant figures
Answer - A, B, D, E
to prevent scheduling conflicts
to help meet deadlines
to maintain a consistent schedule
It is because precise amount measured is required for the reaction to take place chemically, and an accurate conclusion will prevent any dangerous and misleading conclusions made due to inaccurate data.
For example, in physics, every measurement we state the instrument uncertainty after the measurement, stating that it is not a definite certain measurement, but the smaller the value for the uncertainty, the more precise that instrument's data is.
Precise is important in terms of knowing how many moles or grams of reactant is required for this reaction to complete without any shortage or excess chemically. Accuracy is based on the conclusions we make in regards to the data and observations we make experimentally.
Just divide!
60 seconds = 1 min
60 mins = 1 hour
1987 seconds divided by 60 seconds = 33.11 minutes
Your answer would be 33 minutes and 11 seconds
