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3 years ago

Which of the following is NOT n intensive property?

Chemistry

1 answer:

kvasek [131]3 years ago

8 0

The answer is D Volume. Volume is an extensive property.

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How much heat is required to vaporize 43.9 g of acetone at its boiling point?

bogdanovich [222]

The heat required to vaporize 43.9 g of acetone at its boiling point is calculated as below

the heat of vaporization of acetone at its boiling point is 29.1 kj/mole

find the moles of acetone = mass/molar mass
= 43.9g /58 g/mol =0.757 moles

heat (Q) = moles x heat of vaporization

= 29.1 kj/mole x 0.757 moles = 22.03 kj

5 0

3 years ago

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What group of elements generally have the lowest second ionization energy?

ICE Princess25 [194]

By definition, the first ionization energy is the energy required to remove the most loosely held electron from one mole of gaseous atoms to produce 1 mole of gaseous ions each with a charge of 1+.

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3 years ago

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How many molecules are in 100 g of C6H120,?*

Grace [21]

Answer:

3.37 × 10²³ molecules

Explanation:

Given data:

Mass of C₆H₁₂O₆ = 100 g

Number of molecules = ?

Solution:

Number of moles of C₆H₁₂O₆:

Number of moles = mass/molar mass

Number of moles = 100 g/ 180.16 g/mol

Number of moles = 0.56 mol

Number of molecules:

1 mole contain 6.022 × 10²³ molecules

0.56 mol × 6.022 × 10²³ molecules /1 mol

3.37 × 10²³ molecules

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3 years ago

Which material is a mixture? 1. water 2. air 3. methane 4. magnesium

skelet666 [1.2K]

Pure air is a mixture of several gases that are invisible and odorless. Consists of 78% nitrogen, 21% oxygen, and less than 1% of argon, carbon dioxide.

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3 years ago

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What mass of helium is in a 2.00 L balloon at STP? pls help me lol

sertanlavr [38]

Once upon a time there was a lovely

princess. But she had an enchantment

upon her of a fearful sort which could

only be broken by love's first kiss.

She was locked away in a castle guarded

by a terrible fire-breathing dragon.

Many brave knights had attempted to

free her from this dreadful prison,

but non prevailed. She waited in the

dragon's keep in the highest room of

the tallest tower for her true love

and true love's first kiss. (laughs)

Like that's ever gonna happen. What

a load of - (toilet flush)

Allstar - by Smashmouth begins to play. Shrek goes about his

day. While in a nearby town, the villagers get together to go

after the ogre.

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3 years ago