Answer:
The first one is 102.33 g/ml
Explanation:
307 divided by 3 gets u the answer 102.33(repeated)
Hope this helps :)
Answer:
Force of attraction = 35.96 N
Explanation:
Given: charge on anion = -2
Charge on cation = +2
Distance = 1 nm = m
To calculate: Force of attraction.
Solution: The force of attraction is calculated by using equation,
---(1)
where, q represents the charge and the subscripts 1 and 2 represents cation and anion.
k =
F = force of attraction
r = distance between ions.
Substituting all the values in the equation (1) the equation becomes
Force of attraction = 35.96 N
Answer:
4.76 × 10¯⁵ cm
Explanation:
The conversion of 476 nm to cm can be obtained as follow:
1. Conversion of 476 nm to m
Recall
1 nm = 1 × 10¯⁹ m
Therefore,
476 nm = 476 × 1 × 10¯⁹ = 476 × 10¯⁹ m
2. Conversion of 476 × 10¯⁹ m to cm
Recall:
1 m = 100 cm
Therefore,
476 × 10¯⁹ m = 476 × 10¯⁹ × 100
476 × 10¯⁹ m = 476 × 10¯⁷ cm
476 × 10¯⁹ m = 4.76 × 10¯⁵ cm
Therefore,
476 nm is equivalent to the 4.76 × 10¯⁵ cm
The distance covered by each atom of copper will be twice the radius of each atom, which is its diameter
it will be like as shown in diagram....
Let the number of atoms required is "n"
thus total atoms required will be
Let us convert pm to mm for unit cancellation.
Thus
hence