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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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4 years ago
A sample of Ammonia gas at 650mmHg and 15 degree has a mass of 56.8g.calculate the volume occupied by the gas. Take N=14, H=1,R=
avanturin [10]

Answer:

The first thing we have to do is change and state all the units so that we can use our ideal gas law equation (PV = nRT).

650 mmHg is a pressure unit, we have to convert this to kiloPascals. We know that 760 mmHg gives us 101 kPa.

650 \ mmHg \ * \ \frac{101kPa}{760 mmHg} = 86 \ kPa

P = 86kPa

T = 15°C + 273K = 288K

R (Gas constant) = 8.31 kj/mol  

Molar mass of Ammonia (NH_{3}) = (1 x 3) + (14) = 17g/mol

n (moles) = \frac{mass}{molar \ mass} = \frac{56.8}{17} = 3.34 mol

V = ?

Rearrange the equation to solve for Volume:

V = \frac{nRT}{P}

Substitute the values inside:

V = \frac{(3.34)(8.31)(288)}{(86)} = 93 L (rounded)

<u>Therefore 93 L of volume is occupied by the ammonia gas.</u>

<u></u>

4 0
2 years ago
For the reaction
stepan [7]
Yea lol do that and maybe 71
7 0
3 years ago
Which of the following describes a crystal? *
Lynna [10]

Answer:

has a highly ordered microscopic structure

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