Answer:
The motion of the atoms should vary depending on the state.
Ba(OH)₂ is a strong base, therefore completely ionises in the solution as follows
Ba(OH)₂ --> Ba²⁺ + 2OH⁻
1 mol of Ba(OH)₂ gives out 2 mol of OH⁻
therefore number of OH⁻ moles are twice the amount of Ba(OH)₂ moles in the solution
hence,
[OH⁻] = 2[Ba(OH)₂]
therefore hydroxide ion concentration = 2 x 1.37 x 10⁻⁵ M
[OH⁻] = 2.74 x 10⁻⁵ M
coefficient = 2.74
exponent = -5
Answer:
Let's assume that the erosion rate is "X/hour". The total volume of sand on a beach after 24 hours would be,
= total sand volume - (erosion rate per hour * 24)
= 1,278m - (X/hour * day)
Explanation:
Now assume that the erosion rate is 1 m per hour. Therefore, in 24 hours would be,
= 1,278m - (1/hour * 24)
= 1,278 - 24
= 1254 m.
Answer:2
Explanation:
This way they will balance.
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