Answer:
Explanation:
1.026 g/204.23 g/mole= 0.00502 mole
0.00502/0.1 L= 0.0502 molar
Like a rabbit eats grass and a hawk eats a rabbit if you didint have grass there would be no rabbits and without rabbit the hawk wouldn’t have food so there would be no hawks nor rabbits without grass
Since this equation is balanced, we know that the law of conversation of mass id applied, and we could calculate easily.
Na= 2
NO3= 2
Ca= 1
<span>Cl= 1</span>
Answer:
7,1x10⁻⁵M = [OH⁻]
Explanation:
pH is the -log of hydronium ion. pOH is -log of hydroxide ion. Knowing pH + pOH = 14:
14 = 9,85 + pOH
pOH = 14 - 9,85
pOH = 4,15
-log [OH⁻] = 4,15
10^-4,15 = [OH⁻]
<em>7,1x10⁻⁵M = [OH⁻]</em>
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I hope it helps!
