Two cyclists leave a city at the same time, one going east and the other going west. The westbound cyclist bikes at 3 mph faster
1 answer:
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Answer:
The mass of 3.13*10²³ molecules of carbon dioxide is 22.88 g.
Step-by-step explanation:
Avogadro's Number or Avogadro's Constant is the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole and it applies to any substance.
Then you can apply the following rule of three: if 6.023*10²³ molecules are present in 1 mole, 3.13*10²³ molecules are present in how many moles?
moles= 0.52
Since the molar mass of carbon dioxide is 44 g / mole, then the following rule of three can be applied: if there are 44 g in 1 mole, how much mass is there in 0.52 moles?
mass= 22.88 g
<u><em>The mass of 3.13*10²³ molecules of carbon dioxide is 22.88 g.</em></u>
Answer:
Step-by-step explanation:
Given
Scarves: 1 green; 1 white
Hats: 1 blue; 1 red; 1 yellow; 1 purple
Required
Determine the probability of 1 blue hat and 1 white scarf
First, we need to determine the probability of blue hat
Hence;
Next, we determine probability of white scarf
Calculating the required probability;