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2 answers:
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Answer:
A. 0.1 M
Explanation:
Given data
- Mass of NaI (solute): 15 g
- Molar mass of NaI: 150 g/mol
- Volume of solution: 1 L
Step 1: Calculate the moles of solute
Step 2: Calculate the molarity of the solution
The molarity of the solution is equal to the moles of solute divided by the liters of solution.
The solution is 0.1 M.
Answer:
Acceleration is :
a = 2.89 m/s2
Explanation:
Acceleration : It is the change in the velocity of the object per unit time.
The object starts from the rest , so the initial velocity of the object is zero.
Initial velocity , u = 0
Final velocity = 100 km/h
Change the velocity to m/s because[ time unit is in second(9.60 s)]
1 km = 1000 m
1 hour = 60 x 60 sec = 3600 sec
v = 27.78 m/s
u = 0 m/s
time = 9.60 s
The acceleration"a" is calculated using :