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3 years ago

Alcohol is a ______ drug that affects your coordination, judgment, perception, and emotional state.

Chemistry

1 answer:

BARSIC [14]3 years ago

8 0

Answer: barbiturates

Explanation: barbiturates is a kind of drug that can produce effects similar to those of alcohol, ranging from mild relaxation to an inability to feel pain, loss of consciousness, and impaired judgment.

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A certain substance X condenses at a temperature of 123.3 degree C . But if a 650. g sample of X is prepared with 24.6 g of urea

Pavel [41]

Answer:

The molal boiling point elevation constant is 1.59 ≈ 1.6 $Kkgmol^{-1}$

Explanation:

To solve this question , we will make use of the equation ,

Δ $T_{b} = i*K_{b} *m$

where ,

Δ $T_{b}$ is the change in boiling point of the substance $X$ ( ° $C$ or $K$ )

$i$ is the Vant Hoff Factor which = 1 in this case ( no unit )

$K_{b}$ is the mola boiling point elevation constant of X ( $Kkgmol^{-1}$ )

$m$ is the molality of the solution which has $(NH_{2})_{2} CO$ as the solute and $X$ as the solution ( $molkg^{-1}$ )

Δ $T_{b}$ = $124.3 -123.3 = 1$ ° $C$ or $K$ ;
$i$ =1;
$m$ = $\frac{moles of solute}{weight of solvent(kg)}$ $molkg^{-1}$

∴ $m = \frac{\frac{24.6}{60} }{\frac{650}{1000} }$

as the weight of $(NH_{2})_{2} CO$ is $60g$ and thus number of moles = $\frac{24.6}{60}$

and the weight of solvent in $kg$ is $\frac{650}{1000}$

4. $K_{b}$ ⇒ ?

∴

$1=1*K_{b} *\frac{\frac{24.6}{60} }{\frac{650}{1000} }$

⇒ $K_{b}$ = $1.59$ ≈ 1.6 $Kkgmol^{-1}$

4 0

3 years ago

Which has the greater number of particles, 1 mole br2 or 80g br2?

KengaRu [80]

They have the same amount of particles.

If you convert 80g to moles, you will find that 80g of diatomic bromine is 1 mole.

3 0

4 years ago

How many moles of Na3PO4 are in 820. grams of it?

kotegsom [21]

Answer:Hello

D is correct

Explanation:

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3 years ago

Type of energy that is stored in the core of an Adam

lorasvet [3.4K]

Answer: nuclear energy

Explanation:

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4 years ago

How is the scientific meaning of salt different from the common meaning of salt

kondaur [170]

The scientific meaning of salt is an ionic compound that is formed when an acid and a base reaction take place and is neutralized.
The common meaning of salt (table salt) is specifically the organic mineral of sodium chloride (NaCl) and is digestible.
Ionic salts are often not digestible (or not commonly digested, anyway)

7 0

3 years ago