4 years ago

Does pebbles dissolve in water?

Chemistry

2 answers:

Lyrx [107]4 years ago

6 0

Pebbles of salt or regular pebbles?
If it's regular pebbles than no

PolarNik [594]4 years ago

3 0

Hi there!

The answer is no.

Although the real answer depends on what the pebble is composed of (since different materials produce different effects), most pebbles don't dissolve in water.

Hope this helps!

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Question 14 A student dissolves 1.5g of styrene C8H8 in 225.mL of a solvent with a density of 1.02/gmL . The student notices tha

Yuki888 [10]

We must to know:

Cm = molarity = niu / Vs, when the niu = no. of moles and Vs = Volume of solution

the no. niu = mass / molecular mass of substance

molecular mass of C8H8 = 12x8+8x1 = 104 g/mol

=> niu = 1,5 / 104 = 0,0144 moles C8H8

=> Cm = 0,0144/0,225 = 0,06 mol/L

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=> p = mass / V => mass (solvent) = p x V