4 years ago

A ___ is the part of the solution that usually stats as a solid and dissolves in solvent ?

Chemistry

1 answer:

mrs_skeptik [129]4 years ago

4 0

a substance is the part of the solutin

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faust18 [17]

Answer:

the scientific study of the relations between heat and other forms of energy

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3 years ago

12.5 mL of 6.0 M KCl is diluted to make a 1.5 L solution. The molarity of the dilution solution is ___ M. (Round atomic masses t

horsena [70]

The molarity of the dilution solution is 0.050 M

<h3>Further explanation</h3>

Molarity is a way to express the concentration of the solution

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

$\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}$

Where

M = Molarity

n = Number of moles of solute

V = Volume of solution

Dilution formula :

$\tt M_1.V_1=M_2.V_2$

M₁=6 M

V₁=12.5 ml

V₂=1.5 L=1500 ml

$\tt 6\times 12.5=M_2\times 1500\\\\M_2=\dfrac{6\times 12.5}{1500}=0.05~M\\\\for~sig.fig\rightarrow 0.050~M$

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3 years ago

If you have 8.5 moles of Al2(SO4)3 how many grams of the compound<br> do you have?

Zepler [3.9K]

Answer:

$RFM \: of \: aluminium \: sulphate = (2 \times 27) + (32 + (16 \times 4)) \times 3 \\ = 294 \\ 1 \: mole \: weighs \: 294 \: g \\ 8.5 \: moles \: weigh \: (8.5 \times 294) \: g \\ = 2499 \: g$

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Answer:

I don't remember how to label it, but it is 20.

Explanation:

The answer is 20 because once you dat the rock in the water, that is how much it changed.

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2 years ago