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lilavasa [31]
3 years ago
10

The minimum amount of methyl benzoate needed to trigger an alert for a drug dog is on the order of:

Chemistry
1 answer:
olga_2 [115]3 years ago
3 0

To trigger a drug-dog alert, the necessary threshold level would be around 1 to 10 micrograms of methyl benzoate.

 

In the 1999 Furton study, it was stated that it would take 500 milligrams of cocaine in order to emit 1 to 10 micrograms of Methyl Benzoate.

 

A colorless liquid that is poorly soluble in water is one of the properties of <span>methyl benzoate.</span>

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Answer:

+VE

Explanation:

If we look at the reaction profile pictured in the question, we can easily identify A as the enthalpy of the reaction. The enthalpy of reaction (ΔHrxn) is usually defined as the difference between the total enthalpy (heat content) of the products of a reaction and the total enthalpy (heat content) of the reactants in that reaction.

Looking at the figure, we can see that the enthalpy of products is greater than the enthalpy of reactants, hence ∆Hrxn is positive as stated in the answer above.

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s344n2d4d5 [400]

Answer:

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We'll begin by calculating the number of mole hydrogen gas, H2 that will occupy 80.3 mL at stp.

This is illustrated below:

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1 mole of any occupy 22.4L or 22400 mL at stp.

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Therefore, Xmol of H2 will occupy 80.3 mL at stp i.e

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Therefore, 3.58×10¯³ mole of Hydrogen gas was released.

Now, we can determine the mole of the unknown metal as follow:

The balanced equation for the reaction is given below:

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From the balanced equation above,

1 mole of the unknown metal reacted to produce 1 mole of H2.

Therefore, 3.58×10¯³ mole of the unknown metal will also react to produce 3.58×10¯³ mole of H2.

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kvv77 [185]

Answer:

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What this means is that as long as the pressure remains unchanged, when the volume increases, the temperature increases, and when the volume decreases, the temperature decreases

These can be represented by the mathematical formula below:

\frac{V_1}{T_1}\text{ = }\frac{V_2}{T_2}

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