Answer: Time needed: 2.5 s
Distance covered: 31.3 m
Explanation:
I'll start with the distance covered while decelerating. Since you know that the initial speed of the car is 15.0 m/s, and that its final speed must by 10.0 m/s, you can use the known acceleration to determine the distance covered by
on one side of the equation and solve by plugging your values
To get the time needed to reach this speed, i.e. 10.0 m/s, you can use the following equation
Explanation:
You have to use Avogadro's number which is 6.02x10^23. The units of Avogadro's number is molecules/mole so you divide the number of molecules by Avogadro's number which will give you the number of moles.
(2.0x10^22 molecules)/(6.02x10^23 molecules/mole)=0.033 moles
By increasing the amount of energy produced by friction of the cloth can generate a electrical charge.
Answer:
Percent yield = 82.5
Explanation:
Given data:
Actual yield of N₂ = 275 L
Theoretical yield = 333 L
Percent yield = ?
Solution:
Chemical equation:
4HCl + 6NO → 5N₂ + 6H₂O
Percent yield:
Percent yield = actual yield / theoretical yield × 100
Percent yield = (275 L/ 333 L ) × 100
Percent yield = 0.825× 100
Percent yield = 82.5%
