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3 years ago

How do carbohydrates relate to organic chemistry

Chemistry

1 answer:

GREYUIT [131]3 years ago

3 0

Answer:

The answer to your question is below

Explanation:

Organic chemistry studies the compounds that have carbon, hydrogen, oxygen and other elements in their structure.

Carbohydrates are biomolecules that are composed of carbon, hydrogen, and oxygen that is why they are studied by organic chemistry.

Other biomolecules that are also studied by organic chemistry are Proteins, Lipids, and Vitamins.

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A balloon contains 2.0 L of air at 101.5 kPa . You squeeze the balloon to a volume of 0.25 L.

8_murik_8 [283]

<h3>Answer:</h3>

812 kPa

<h3>Explanation:</h3>

According to Boyle's law pressure and volume of a fixed mass are inversely proportional at constant absolute temperature.

Mathematically, $P\alpha \frac{1}{V}$

At varying pressure and volume;

P1V1=P2V2

In this case;

Initial volume, V1 = 2.0 L

Initial pressure, P1 = 101.5 kPa

Final volume, V1 = 0.25 L

We are required to determine the new pressure;

$P2=\frac{P1V1}{V2}$

Replacing the known variables with the values;

$P2=\frac{(101.5)(2.0L)}{0.25L}$

= 812 kPa

Thus, the pressure of air inside the balloon after squeezing is 812 kPa

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3 years ago

Suppose you were calibrating a 100.0 ml volumetric flask using distilled water. the flask temperature was at 20°c, and you assum

kicyunya [14]

The density of water at 12°C is lower than the density of water at 20°C.

Now density is related to volume as per: density = mass / volume =>

mass = volume * density.

So, the greaer the density the higher the mass of the same volume of water.

Therefore, 100.0 ml of water at 12°C has a mass greater than 100.00 ml of water at 20 °C.

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4 years ago

1 CHEM QUESTION PLEASE HELP<br> What is meant by the phrase, “conservation of mass”?

Pavel [41]

It is a principle that states that mass cannot be loss or gained in a chemical reaction.

5 0

3 years ago

Identify the type of chemical bond in a molecule reactant

e-lub [12.9K]

Draw the electron-dot (Lewis) structure of O2. You will see that there is a double bond, thus making the chemical bond a covalent bond since they have to share a pair of electrons in order to complete their octet.

8 0

3 years ago

Read 2 more answers

How many dm3 of hydrogen are released when 3 g of potassium is reacted with hydroiodic acid?

nlexa [21]

Answer:

V = 0.0859dm³

Explanation:

Hydroiodic acid, HI, reacts with potassium, K, to produce potassium iodide, KI, and hydrogen, as follows:

2HI + 2K → 2KI + H₂(g)

To solve this question we have to find the moles of hydrogen produced knowing that 2 moles of K produce 1 mole of H₂. With the moles of hydrogen we can find the volume of hydrogen assuming there are STP conditions:

<em>Moles K -Molar mass: 39.0983g/mol-</em>

3g * (1mol / 39.0983g) = 0.0767 moles of K

<em>Moles H₂:</em>

0.0767 moles of K * (1mol H₂ / 2mol K) = 0.03836 moles H₂

Using: PV = nRT; V = nRT / P

<em>Where V is volume in dm³,</em>

<em>n are moles of gas: 0.03836 moles,</em>

<em>R is gas constant = 0.082atm*dm³/molK</em>

<em>T is absolute temperature = 273.15K at STP</em>

<em>and P is pressure = 1atm</em>

The volume of the gas is:

V = 0.03836mol*0.082atm*dm³/molK*273.15K / 1atm

8 0

3 years ago