Answer: A mutation because a change in DNA that is natural is a mutation. :)
In order to calculate average speed we will calculate the total distance in meters traveled by cindy.
Distance = 2 Km
1 km = 1000m
So distance in meters = 2000 m
Then let us calculate the total time taken by cindy to cover these 2000 meters
Total time in minutes = 2 + 4 + 1 + 3 = 10 minute
Average speed = total distance / total time
Average speed = 2000 m / 10 minutes
average speed = 200 m / min
There are 0.1 moles of solute in 250 mL of 0.4 M solution.
Explanation:
First, recognize that the molar concentration tells you how many moles of the solute are present in one liter of solution. In a 0.4 M solution, there are 0.4 moles of solute in every liter of solution. You can determine the number of moles of solute in 250 mL of the solution using dimensional analysis.
250mL⋅
1L/1000mL⋅
0.4mol1L
Units of liters and milliliters cancel, leaving you with a final answer in units of moles, at 0.1 mol.
