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3 years ago

Please help me :( i have no idea what i’m doing

Chemistry

1 answer:

nikklg [1K]3 years ago

8 0

Second one is the correct answer to this.

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Orange juice is _____.<br> an acid<br> a base<br> a neutral

weqwewe [10]

An acid because of its high content of citric acid

4 0

3 years ago

HELP ASAP

sveta [45]

Uhh I think d sorry if wrong ;-;

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3 years ago

Read 2 more answers

A solution is prepared by mixing 0.0300 mol CH2Cl2 and 0.0500 mol CH2Br2 at 25 degrees C. Assuming the solution is ideal, calcul

Vinil7 [7]

Answer:

CH2Cl2 mole fraction = 0.833

CH2Br2 mole fraction = 0.167

Explanation:

Step 1: Data given

Number of moles CH2Cl2 = 0.0300 moles

Number of moles CH2Br2 = 0.0500 moles

Temperature = 25 °C

Vapor pressure of pure CH2Cl2 = 133 torr

Vapor pressure of pure CH2Br2 = 11.4 torr

Step 2: Calculate mol fraction in solution

Mol fraction CH2Cl2 = 0.0300 moles / (0.0300 + 0.0700)

Mol fraction CH2Cl2 = 0.300

Mol fraction CH2Br2 = 0.0700 moles / (0.0300 + 0.0700)

Mol fraction CH2Br2 = 0.700

Step 3: Calculate partial pressure

Partial pressure CH2Cl2 = 133 torr * 0.300 = 39.9 torr

Partial pressure CH2Br = 11.4 torr * 0.700 =7.98 torr

Step 4: Calculate the total pressure

total pressure = 39.9 + 7.98 = 47.88 torr

Step 5: Calculate mol fraction

partial pressure / total pressure = mole fraction

CH2Cl2 mole fraction = 39.9 / 47.88 = 0.833

CH2Br2 mole fraction = 7.98 / 47.88 = 0.167

3 0

3 years ago

How do properties move if in solid

Schach [20]

Answer:

In the solid phase, the forces of attraction have completely overcome molecular motion, and the movement of the particles has been reduced to vibrating in place. The particles cannot move past one another and are held in a tightly-packed pattern, so there is very little space between the particles.

5 0

3 years ago

At which step(s) pictured on the graph below, does the temperature remain constant?

ElenaW [278]

Answer:

Option D. Condensation

Explanation:

Condensation is the proces in which gaseous molecules are converted into liquid. During condensation, the temperature remains constant as there is no change in kinetic energy of the gaseous molecules.

From the graph given above, we can see that the temperature at the Gas – Liquid remains the same. At this state, condensation occurs as the gas molecules are converted into liquid.

8 0

3 years ago