glazevaida9

20.10.2020 • 

Chemistry

The term "solar noon" refers to the point when the sun has risen to its maximum height in the sky before appearing to begin its descent toward the west. Examine your light level versus time data. Can you tell from your data when it was "solar noon" at the light sensor on the "earth's" surface? Explain your thinking.

Ответ:

shhells

29.03.2023

Chemistry

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V = 75 mL = 0,075 L = 0,075 dm³
C = 2.1M
n = ?

C = n/V
n = C×V
n = 2.1×0,075
n = 0,1575 mol

mKCl: 39+35.5 = 74,5 g/mol

74,5g 1 mol
Xg 0,1575 mol
X = 74,5×0,1575
X = 11,73375g KCl

:•)

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