3 years ago

Question 1 of 10

Chemistry

1 answer:

Rzqust [24]3 years ago

7 0

Answer:

A. 1km

Explanation:

The 1 km is equal to 1000 m.

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Is chromate polar or nonpolar?

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Answer:

i THINK so

Explanation:

im not sure tho sorry if wrong

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Barbiturates are synthetic drugs used as sedatives and hypnotics. Barbital ( = 184.2 g/mol) is one of the simplest of these drug

DanielleElmas [232]

Answer:

118.75°C is the boiling point of a solution.

Explanation:

Mass of the solute that is barbiturates = 42.5 g

Molar mass of a solute = 184.2 g/mol

Moles of solute = $\frac{42.5 g}{184.2 g/mol}=0.2307 mol$

Mass of the solvent that acetic acid = 825 g = 0.825 kg

$molality=\frac{\text{Moles of solute}}{\text{Mass of solvent}}$

Molality of the solution (m):

$m=\frac{0.2307 mol}{0.825 kg}=0.2796 m$

Elevation in boiling point is given as:

$\Delta T_b=i\times K_b\times m$

i = 1 (organic compound)

$=1\times 3.07^oC/m\times 0.2796 m=0.8585^oC$

$\Delta T_b=T_b-T$

$T_b$ = Boiling temperature of solution.

T = boiling temperature of solvent that is acetic acid=117.9°C

$0.8585^oC=T_b-117.9^oC$

$T_b=118.75 ^oC$

118.75°C is the boiling point of a solution.

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3 years ago

If a car is going at a speed of 36 km/hr. what is the speed in m/s

blsea [12.9K]

To convert km/h into m/s = 5/18

36×5/18

10 m/s

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Non-examples of air pressure

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No pressure

Ahhhhhh (filling character req)

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What data would be most helpful to support the claim that the population of a certain plant is dependent on the rainfall in its

LekaFEV [45]

Answer: number 1 rainfall amounts

Explanation: i hope this heps you bye

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