Recall that a mole is defined as Avogadros number of particles.
What the formula of caffeine basically tells us is that for every molecule of caffeine, you will have 4 atoms of nitrogen
So, if we have 0.3 moles of caffeine we will have 4*0.3 moles of nitrogen which is 0.12.
And you got the idea
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Answer:- Volume of the 5.0 carat diamond is 
.
Solution:- It is a unit conversion problem. Need to convert carat to grams and then using grams and density the volume could easily be calculated.
We have 5.0 carat diamond and asked to calculate it's volume. Density of diamond is given as 
and 1 carat = 0.200 g. Let's do this step by step:
First step is the conversion of carat to grams:
= 1.0 g
In second step, grams are converted to volume using the given density as:
So, the volume of the 5.0 carat diamond is .
The average speed of the blocks are 0.36 m/s.
Explanation:
Average speed is defined as the ratio of distance covered per unit time. So if it is said that blocks are pulled to 0.9 m in the right side. This means the blocks cover a distance of 0.9 m from the origin and that distance is covered in 2.5 s. Thus, the average speed can be calculated from the change in speed with respect to time. As at time t = 0 , the speed is also zero, and at time t = 2.5 s , the speed will be
Since, in this case, the speed is equal to the average speed of blocks. So the average speed of the blocks will be 0.36 m/s.
Is this an actual question?
Answer:
The answer is growth rate
Explanation:
it will help you
