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Alexus [3.1K]
3 years ago
7

Why are the densities of corn syrup and gasoline expressed as a range of values?

Chemistry
2 answers:
SVETLANKA909090 [29]3 years ago
6 0

Answer:

The answer is because they are not a substance, but a mixture of organic compounds.

Explanation:

A range of values is used because they are not a substance, but a mixture of organic compounds that has a range of molar masses. Corn syrup contains glucose in not less than 70% by weight of total solids and a reducing sugar content of 20% by weight on a dry basis. The composition of gasoline depends on the source from which it is extracted, therefore it has different molar masses. A gasoline with a long carbon chain is heavy and has a higher mass for a fixed volume, so its density will increase. Any change affecting the product will lead to an increase or decrease in density.

Have a nice day!

Maslowich3 years ago
4 0
A range of values is given for the density of gasoline and corn syrup could be because these substances changes their volumes along with the changes in temperature which will result to a change in density as well. Hope this answers the question. 
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RUDIKE [14]

Answer: read your book

Explanation: if you read it should be in there

3 0
3 years ago
Calculate the average reaction rate expressed in moles h2 consumed per liter per second
djyliett [7]

Answer:

Average rate of reaction expressed in moles H₂ consumed per liter per second = 0.0025 M/s = 0.0025 mol/L.s

Explanation:

The complete, correct Question, is presented in the attached image to this answer.

The average rate of reaction in terms of the reactant is defined as the total amount of reactant consumed over a period of time divided by total period of time.

Mathematically,

Average rate of reaction = (change in concentration of H₂ over a period of time) ÷ (total period of time)

Average rate of reaction = (-ΔC)/(Δt)

The minus sign is there because the concentration of reactants reduce with time.

change in concentration of H₂ = -ΔC

= -(0.02 - 0.03) = 0.01 M

Time = Δt = 4 - 0 = 4.0 s

Average rate of reaction = (0.01/4) = 0.0025 M/s

We could solve for the average rate of reaction expressed in moles Cl₂ consumed per liter per second

change in concentration of Cl₂ = -ΔC

= -(0.04 - 0.05) = 0.01 M

Time = Δt = 4 - 0 = 4.0 s

Average rate of reaction = (0.01/4) = 0.0025 M/s = 0.0025 mol/L.s

Hope this Helps!!!

8 0
3 years ago
sample of atmospheric gas collected at an industrial site is stored in a 250 mL amber glass bottle that has a pressure of 1.02 a
Nady [450]

Answer:- New pressure is 0.942 atm.

Solution:- The volume of the glass bottle would remain constant here and the pressure will change with the temperature.

Pressure is directly proportional to the kelvin temperature. The equation used here is:

P_1T_2=P_2T_1

Where, T_1 and T_2 are initial and final temperatures, P_1 and P_2 are initial and final pressures.

T_1 = 20.3 + 273.15 = 293.45 K

T_2 = -2.0 + 273.15 = 271.15 K

P_1 = 1.02 atm

T_2  = ?

Let's plug in the values in the equation and solve it for final pressure.

1.02atm(271.15K)=P_2(293.45K)

P_2=\frac{1.02atm*271.15K}{293.45K}

P_2 = 0.942 atm

So, the new pressure of the jar is 0.942 atm.


5 0
3 years ago
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grigory [225]

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4 0
3 years ago
Name the following compound with a polyatomic ion: Na₂SO₄ *
Helga [31]

Answer:

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6 0
2 years ago
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