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3 years ago

ANSWER PLEASE! QUICLKY!

Chemistry

2 answers:

Ira Lisetskai [31]3 years ago

6 0

Do you know what mixture it is talking about?

juin [17]3 years ago

4 0

Answer:

too late now LOL but the answer is a

Explanation:

i dont wanna explain rn

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Question 8 (1 point)

Sveta_85 [38]

Answer:

do u like fishing

Explanation:

because i do

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2 years ago

Read 2 more answers

A balloon is filled with 30L of helium gas at 1atm.What is the volume when balloon rises to an attitude where the pressure is on

Harrizon [31]

Answer:

$V_2=120L$

Explanation:

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In this case, since Helium is undergoing a volume-pressure change, according the Boyle's law, we infer the following equation is used:

$P_1V_1=P_2V_2$

Thus, since we are not given the volume at 0.25 atm, we can solve for V2 to do so:

$V_2=\frac{P_1V_1}{P_2}$

Thus, we plug in to obtain:

$V_2=\frac{1atm*30L}{0.25atm}=120L$

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3 years ago

Element that is pale-yellow

ryzh [129]

pls follow me

Explanation:

Fluorine.

6 0

3 years ago

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Which 0.1 M solution has a pH greater than 7? w 1. C6H1206 2.CH3COOH 3.КСІ 4.KOH

Marrrta [24]

Answer:

4) KOH

Explanation:

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3 years ago

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.

6 0

3 years ago