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3 years ago

Which organic compound is correctly matched with the subunit that composes it?

1 answer:

7 0

It is the Starch-glucose. Glucose is a solitary sugar particle that your body can retain specifically in the digestive system. Sucrose and starches are starches shaped by at least two sugars reinforced together. The sugars in sucrose and starch must be separated into glucose particles in the gastrointestinal tract before your digestive organs can assimilate them.

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6. A sample of a gas has a mass of 0.527 g. Its volume is 0.35 L at a temperature of 88 degree Celsius and a pressure of 945 mm

Stels [109]

<u>Answer:</u> The molar mass of the gas is 35.87 g/mol.

<u>Explanation:</u>

To calculate the mass of gas, we use the equation given by ideal gas:

PV = nRT

or,

$PV=\frac{m}{M}RT$

where,

P = Pressure of gas = 945 mmHg

V = Volume of the gas = 0.35 L

m = Mass of gas = 0.527 g

M = Molar mass of gas = ? g/mo

R = Gas constant = $62.3637\text{ L.mmHg }mol^{-1}K^{-1}$

T = Temperature of gas = $88^oC=[88+273]=361K$

Putting values in above equation, we get:

$945mmHg\times 0.35L=\frac{0.527g}{M}\times 62.3637\text{ L.mmHg }mol^{-1}K^{-1}\times 361K\\\\M=35.87g/mol$

Hence, the molar mass of the gas is 35.87 g/mol.

5 0

4 years ago

Evaporation from the surface of the ocean is the main energy source for

astraxan [27]

Answer:

hurricanes

Explanation:

I also had this question, i put tsunamis and that was wrong. It gave me the answer and it was hurricanes.

8 0

3 years ago

Name

anzhelika [568]

Answer:

solubility- the degree to which a material will dissolve in another substance

mixture- different materials placed together but keeping their own properties

solution- a mixture in which substances are spread out evenly and will not settle

7 0

3 years ago

It’s science can some plz help me

sammy [17]

Yes? How may I help you!

4 0

3 years ago

Calculate the lattice energy (kJ/mol) of the hypothetical ionic compound MX from the information given below.IE1(M) = 538 kJ/mol

storchak [24]

Answer:

The correct answer is -494.6 kJ/mol

Explanation:

Find enclosed the Born Haber cycle for MX. The solid compound M (M(s)) is sublimated to M(g) and then it is ionizated to M⁺. The gaseous compound X₂(g) is first dissociated to its atoms in gaseous phase X(g) and then it is ionizated to give X⁻(g). Lattice energy (LE) is the energy required to form 1 mol of MX(s) from its ions in gaseous phase.

From the cycle, we have:

ΔHºf= ΔHsub + IE + ΔHdis + EA + LE

⇒LE= ΔHºf - ΔHsub - IE - 1/2 ΔHdis - EA

LE= -169.7 kJ/mol - (74.4 kJ/mol) - (538 kJ/mol) - 1/2 (157 kJ/mol) - (-366 kJ/mol)

LE= -494.6 kJ/mol

6 0

3 years ago