A. Metal ion can be pushed out of position B. Metal form covalent bond C. Metals are brittle

She dissolves a 10.0mg sample in enough water to make 30.0mL of solution. The osmotic pressure of the solution is 0.340torr at 2

uranmaximum [27]

Answer:

(a)The molar mass of the gene fragment is 18220.071g/mol = 18.22 kg/mol

(b)The freezing point for the aqueous solution is $-3.413\times10^{-5}$ C

Explanation:

The osmotic pressure (π) is given by the following equation:

$\pi =cRT$

$c$ = Concentration of solution

R = universal gas constant = 62.364 $\frac{L\times torr}{mol\times K}$

T = temperature

Weight of solute = w = 10.0 mg

Let the molecular weight of the solute be m g/mol.

Concentration = $c=\frac{n}{V}\\ n=\frac{w}{m}\\ n=\frac{10\times10^{-3}}{m}\\c=\frac{10\times10^{-3}}{m\times30\times10^{-3}}M$

$m=\frac{RT}{3\pi}$

m = 18220.071g/mol

Therefore, the molar mass of the gene fragment is 18220.071g/mol = 18.22 kg/mol

$\Delta T_{f}=K_{f}m$

m is the molality of the solution.

m = $1.835\times10^{-5}$ mol/kg

$\Delta T_{f}=1.86\times m$

$\Delta T_{f}$ = $3.413\times10^{-5}$ C

The freezing point for the aqueous solution is $-3.413\times10^{-5}$ C

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List the steps in the water cycle, in the correct order?

inn [45]

There are four main stages in the water cycle. They are evaporation, condensation, precipitation and collection. Let's look at each of these stages. Evaporation: This is when warmth from the sun causes water from oceans, lakes, streams, ice and soils to rise into the air and turn into water vapour (gas).

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The product of a combination reaction is Ca(OH)2. If one of the reactants is H20 wat is the other reactant

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Which phrase describes air density?

saw5 [17]

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Explanation:I got hacks :)

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Between a water molecule and an anion, like Cl-, a _____A_____ occurs between a _____B_____ of the water molecule and the anion.

AVprozaik [17]

Between a water molecule and an anion, like Cl-, a hydrogen bon occurs between hydrogen atom of the water molecule and the anion.

<h3>What is hydrogen bond?</h3>

Hydrogen bond is a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other. Hydrogen atom in water molecule attract anion due to presence of hydrogen bond.

So we can conclude that hydrogen bond occurs between hydrogen atom of the water molecule and the anion.

Learn more about bond here: brainly.com/question/819068

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