How can you measure the volume of air inside of a balloon?

1 answer:

8 0

You could let the air out of the balloon while it is under the water with a container filled with water upside down over it. And measure the water displacement.

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In an isothermal gas chromatography experiment using an ECD detector, 1.69 nmols of nchlorohexane, C6H13Cl, was added as an inte

prohojiy [21]

Answer:

The amount of Chlorodecane in the unknown is 0.105nmols

Explanation:

a) Since the GC is in an isothermal state, Chlorohexane C6H13Cl (1.69 nmols) because of its lower boiling point will elute first and Chlorodecane C12H21Cl will elute second.

The area of the first peak corresponding to Chlorohexane is 32434 units.

The area of the second peak corresponding to chlorodecane is 2022 units.

Since the response factor of the compound is not given in question and considering the response factor is same for both the compounds, the answer will be as follow:

1.69 nmols of Chlorohexane gives 32434 units

How much of chlorodecane gives 2022 units

By cross multiplication;

Moles of Chlorodecane = 2022*1.69/32434

=0.105nmols

4 0

3 years ago

3 A partial desert food web is shown.

Fofino [41]

Decomposeza is correct

8 0

3 years ago

Which one of the following represents an acceptable set of quantum numbers for an electron in an atom? (arranged as n, l, ml, an

vfiekz [6]

First, since l = n-1,
5,4,-5,1/2 and 2,1,0,1/2 are the only answer choices left.
Next, since ml = -l to l,
2,1,0,1/2
is the answer because in 5,4,-5,1/2, the ml value of -5 is not in the range of -4 to 4, as notes by the value 4 for l.

8 0

3 years ago

What is the chemical formula for monosaccharides?

goldfiish [28.3K]

Since monosaccharides are the simplest units of carbohydrates, then they are made up of carbon, hydrogen, and oxygen atoms.

empirical formula : CxH2xOx
where
$x \geqslant 3$
Monosaccharides can be classified by the number x of carbon atoms they contain: triose(3) tetrose (4), pentose (5), hexose (6), heptose (7), and so on.

5 0

3 years ago

The _____ number of an atom is equal to the sum of the protons and _____ in the nucleus of the atom.

Nookie1986 [14]

Answer:

atomic, neutrons

Explanation:

the mass number of an atom is equal to the sum of the protons and neutrons in the nucleus of the atom.

7 0

2 years ago