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Jet001 [13]
3 years ago
15

What happens if you place celery with leaves into a glass of water with red food coloring? 2-3 hours later what happens to the l

eaves?
Chemistry
1 answer:
Fudgin [204]3 years ago
3 0
The leaves begin to have a reddish tint. This happens because the veins have absorbed the liquid and the color of the liquid. It travels up the stalk to the leaves where nutrients are held.
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If 135.7 J of heat are added to 54.0 g of water initially at 25.0 °C . What is the final temperature of the water?
german

Answer:

The final temperature of the water is 25.6 °C.

Explanation:

We have,

Heat added to water is 135.7 J

Mass, m = 54 g

Initial temperature was 25 °C

It is required to find the final temperature of the water. The heat added when temperature is increased is given in terms of specific heat capacity as :

Q=mc(T_f-T_i)

T_f is final temperature

c is specific heat capacity, for water, c=4.184\ J/g^{\circ} C

So,

T_f=\dfrac{Q}{mc}+T_i\\\\T_f=\dfrac{135.7}{54\times 4.184}+25\\\\T_f=25.6^{\circ} C

So, the final temperature of the water is 25.6 °C.

3 0
4 years ago
PCl5 is placed in a sealed container at an initial pressure of 0.0730 bar . What is the total pressure at equilibrium
Georgia [21]

Answer:

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7 0
2 years ago
How many milliliters of sodium metal, with a density of 0.97 g/mL, would be needed to produce 43.6 grams of sodium hydroxide in
GaryK [48]

Answer is: 25.84  milliliters of sodium metal.

Balanced chemical reaction: 2Na + 2H₂O → 2NaOH + H₂.

d(Na) = 0.97 g/mL; density of sodim.

m(NaOH) = 43.6 g; mass of sodium hydroxide.

n(NaOH) = m(NaOH) ÷ M(NaOH).

n(NaOH) = 43.6 g ÷ 40 g/mol.

n(NaOH) =1.09 mol; amount of sodium hydroxide.

From chemical reaction: n(NaOH) : n(Na) = 2 : 2 (1: 1).

n(Na) = 1.09 mol.

m(Na) = 1.09 mol · 23 g/mol.

m(Na) = 25.07 g; mass of sodium.

V(Na) = m(Na) ÷ d(Na).

V(Na) = 25.07 g ÷ 0.97 g/mL.

V(Na) = 25.84 mL.

7 0
4 years ago
Science:my chosen place is bonifacio global city<br> i choose this place because?
FrozenT [24]

Answer:

Rewrite the following sentence in reported speech

The chair person said,"A hearty welcome to all present!"

3 0
3 years ago
Briefly explain how you will isolate p-tert-butylphenol after you have extracted it into naoh solution.
GREYUIT [131]
To segregate p-tert-butylphenol after you have removed it into NaOH arrangement one would accelerate the p-tert-butylphenol by adding 3M HCl to the cooled arrangement until the point when it is acidic. At that point as the phenol isolates as an oil, one needs to cool the blend in an ice shower to encourage crystallization. The precious stones that are then framed are the p-tert-butylphenol which can be isolated from the arrangement by filtration utilizing the Hirsch pipe
6 0
4 years ago
Read 2 more answers
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