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3 years ago

States two properties a solute need to satisfy to be responsible for the colligative properties?

Chemistry

1 answer:

devlian [24]3 years ago

6 0

Answer:

the properties are:

vapor pressure lowering
osmotic pressure
freezing point depression
boiling point elevation

these are all the properties but I think the two a solute needs to satisfy are

boiling point elevation
vapor pressure lowering

I hope this helps

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PLEASE HELP ME I HAVE NO IDEA “Heat (thermal) energy is being applied to the substance whenever the Bunsen Burner is on. Before

svetlana [45]

TLDR: The energy was being used simply to heat the substance up.

Whenever something melts, it performs what is called a "phase transition", where the state of matter moves from one thing to something else. You can see this in your iced drink at lunch; as the ice in the cup of liquid heats up, it reaches a point where it will eventually "change phase", or melt. The same can be achieved if you heat up that water enough, like if you're cooking; when you boil eggs, the water has so much thermal energy it can "change phase" and become a gas!

However, water doesn't randomly become a boiling gas, it has to heat up for a while before it reaches that temperature. For a real-life example, the next time you cook something, hold you hand above the water before it starts boiling. You'll see that that water has quite a high temperature despite not boiling.

There's a lot of more complex chemistry to describe this phenomena, such as the relationship between the temperature, pressure, and what is called the "vapor pressure" of a liquid when describing phase changes, but for now just focus on the heating effect. When ice melts, it doesn't seem like its heating up, but it is. The ice absorbs energy from its surroundings (the warmer water), thus heating up the ice and cooling down the water. Similarly, the bunsen burner serves to heat up things in the lab, so before the solid melts in this case it was simply heating up the solid to the point that it <u>could</u> melt.

Hope this helps!

5 0

4 years ago

What is the product of magnesium metal + silverchloride ?

katrin2010 [14]

Mg + 2AgCl —> MgCl2 + 2Ag

3 0

3 years ago

PLEASE HELP WITH ALL! Do the following Mole conversions:

ExtremeBDS [4]

Answer:

The answer to your question is below

Explanation:

1) number of molecules = x

23 g of CoCl₂

Molar mass CoCl₂ = 59 + 71 = 130 g

130 g ------------------ 6.023 x 10²³ molecules

23 g ----------------- x

x = (23 x 6.023 x 10²³) / 130

x = 1.066 x 10²³ molecules

3.2 moles of H₃PO₄ to grams

Molar mass = 3 + 31 + (16 x 4)

= 98 g

98 g ------------------- 1 mol

x ------------------- 3.2 moles

x = (3.2 x 98)/1

x = 313.6 g

2.2 moles of (NH₄)₂ to grams

Molar mass = (14 x 2) + (8 x 1)

= 36 g

36 g of (NH₄)₂ ---------------- 1 mol

x ---------------- 2.2 moles

x = (2.2 x 36)/1

x = 79.2 grams

Molecules = ? 4.5 g of NH₄SO₂

Molar mass = 14 + 32 + 32 + 4

= 82 g

82 g of NH₄SO₂ --------------- 6.023 x 10²³ molecules

4.5 g ---------------- x

x = (4.5 x 6.023 x 10²³) / 82

x = 3.3 x 10²³ molecules

Liters of N₂ = ? 7.9 x 10³⁰ particles

22.4 l --------------------- 6.023 x 10²³ particles

x -------------------- 7.9 x 10³⁰

x = (7.9 x 10³⁰ x 22.4) / 6.023 x 10²³

x = 2.93 x 10⁸ particles

7 0

3 years ago

Which process lets convection plays a role in the water cycle?

Sergio039 [100]

The best and most correct answer among the choices provided by your question is the third choice or letter C.

Convection is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it. Convection plays a role in the water cycle when "<span> gases cycle up and down based on air pressure."

I hope my answer has come to your help. Thank you for posting your question here in Brainly.
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5 0

3 years ago

Determine the oxidation states of the elements in the compounds listed. None of the oxygen-containing compounds are peroxides or

Ahat [919]

Answer :

Oxidation number or oxidation state : It represent the number of electrons lost or gained by the atoms of an element in a compound.

Oxidation numbers are generally written with the sign (+) and (-) first and then the magnitude.

Rules for Oxidation Numbers are :

The oxidation number of a free element is always zero.
The oxidation number of a monatomic ion equals the charge of the ion.
The oxidation number of Hydrogen (H) is +1, but it is -1 in when combined with less electronegative elements.
The oxidation number of oxygen (O) in compounds is usually -2.
The oxidation number of a Group 17 element in a binary compound is -1.
The sum of the oxidation numbers of all of the atoms in a neutral compound is zero.
The sum of the oxidation numbers in a polyatomic ion is equal to the charge of the ion.

Now we have to determine the oxidation state of the elements in the compound.

(a) $H_2SO_4$