Answer:
42 days
Explanation:
Half life = 8.4 days
Starting mass = 40.0 g
Time = ?
Final Mass = 1/16 * 40 = 2.5 g
First Half life;
Remaining mass = 40 / 2 = 20g
Second Half life;
Remaining mass = 20 / 2 = 10g
Third Half life;
Remaining mass = 10 / 2 = 5g
Fourth Half life;
Remaining mass = 5 / 2 = 2.5g
Time = Number of half lives * Duration of half life = 5 * 8.4 = 42 days
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Answer:
C because 77.0 CsF
Explanation:
That is the correct answer because I have that homework and i got it right
Answer:
From the solubility curve, which salt shows the least change in solubility as the temperature increases? NaCl
Explanation:
PH + pOH = 14
pOH=14-8=4
(OH-)=10^-4