The yellow beams in the model represent equal amounts of radiation coming from the Sun. Based on information shown in the model,
which statement is false?
A. Sunlight is more spread out at the poles than the equator.
B. The regions near the poles get the most-intense sunlight.
C. Higher latitudes get less-direct sunlight than lower latitudes.
D. The equator gets the most-direct radiation from the Sun.
(PLEASE HELP)
A. Sunlight is more spread out at the poles than the equator.
B. The regions near the poles get the most-intense sunlight.
C. Higher latitudes get less-direct sunlight than lower latitudes.
D. The equator gets the most-direct radiation from the Sun.
(PLEASE HELP)
2 answers:
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Answer:
Which language is this???
Answer:
1.44 x 10²⁵ ions of Na⁺
Explanation:
Given parameters:
Mass of NaCl = 1.4kg = 1400g
Unknown:
Number of ions of sodium = ?
Solution:
The compound NaCl in ionic form can be written as;
NaCl → Na⁺ + Cl⁻
In 1 mole of NaCl we have 1 mole of sodium ions
Now, let us find the number of moles in NaCl;
Number of moles =
Molar mass of NaCl = 23 + 35.5 = 58.5g/mol
Number of moles = = 23.93mol
So;
Since 1 mole of NaCl gives 1 mole of Na⁺
In 23.93 mole of NaCl will give 23.93 mole of Na⁺
1 mole of a substance = 6.02 x 10²³ ions of a substance
23.93 mole of a substance = 6.02 x 10²³ x 23.93
= 1.44 x 10²⁵ ions of Na⁺