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Vlada [557]
4 years ago
5

What happens when

Chemistry
1 answer:
jolli1 [7]4 years ago
3 0

Answer:

a i think but idk

Explanation:

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Does the moon make its own light? Explain.
-Dominant- [34]

Answer:

No moon has no light.

Explanation:

It only reflects the light coming from the sun. Only star produces light and moon is a satellite that revolvs around the earth.

5 0
3 years ago
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Suppose 10.0 mL of 2.00 MNaOH is added to (a) 0.780 L of pure water and (b) 0.780 L of a buffer solution that is 0.682 Min butan
katrin2010 [14]

Answer:

a) pH will be 12.398

b) pH will be 4.82.

Explanation:

a) The moles of NaOH added = molarity X volume (L) = 2 X 0.01 = 0.02 moles

The total volume after addition of pure water = 0.780+0.01 = 0.79 L

The new concentration of /NaOH will be:

molarity=\frac{molesofsolute}{volumeofsolution}=\frac{0.02}{0.79}=0.025M

the [OH⁻] = 0.025

pOH = -log [OH⁻] = 1.602

pH = 14 -pOH = 12.398

b) The buffer has butanoic acid and butanoate ion.

i) Before addition of NaOH the pH will be calculated using Henderson Hassalbalch's equation:

pH=pKa+log\frac{[salt]}{[acid]}

pKa=-logKa=-log(1.5X10^{-5})=4.82

ii) on addition of base the pH will increase.

8 0
4 years ago
Which process takes place in both plant and animal cells? Conversion of solar energy Cellular respiration Formation of glucose P
Vitek1552 [10]

Answer:

Cellular Respiration

Explanation:

6 0
3 years ago
In Klinefelter syndrome males have chromosomes XXY. This is an example of:
Anit [1.1K]
The correct response is A. Non-disjunction of sex chromosomes.
7 0
4 years ago
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Sodium metal reacts with water to form aqueous sodium hydroxide and hydrogen gas. which equation below best describes the balanc
love history [14]
Sodium metal and water form aqueous sodium hydroxide and hydrogen gas:

Na(s) + 2H2O(l) → (Na+)(aq) + 2(OH-)(aq) + H2(g)

Looks like your entries didn't translate well on screen, so find the solution with the coefficients and ions which match this one.
6 0
3 years ago
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