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3 years ago

The reason salt crystals, such as kcl, hold together so well is because the cations are strongly attracted to

2 answers:

5 0

The answer is anions. Cations are positively-charged ions (in this case K+) while anions are negatively-charged ions (in this case Cl-). The ions attract each other through electrostatic charges and arrange themselves in an ordered fashion to form a lattice

Anna007 [38]3 years ago

3 0

Explanation:

A bond formed due to the transfer of electrons is known as an ionic bond.

For example, KCl is an ionic compound and due to the difference in electronegativity potassium has partial positive charge and chlorine have partial negative charge.

Also, it is known that opposite charges attract each other. So, cations have positive charge and anions have negative charge.

Thus, we can conclude that the reason salt crystals, such as kcl, hold together so well is because the cations are strongly attracted to anions.

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3 years ago

Suppose you have an aqueous solution containing 158.2 g KOHper

postnew [5]

Answer:

1132.8 ml of water

Explanation:

you have an aqueous solution contains 158.2 g KOH per liter

so concentration =158.2/56 = 2.825M

Molarity =2.825

that means you have 2.825 moles of KOH in 1.00L solution

Mass of Soluet(KOH)= 152.8g

Volume of solution= 1.00L

density of solution= 1.13g/cm3 =1.13g/ml

therefore mass of solution = VolumeX density = 1000mL X 1.13g/ml.=1130g

Mass of solvent(water)= mass of solution- mass of solute(KOH)=1130-152.8= 997.2g

Molality= moles of solute/mass of solvent(Kg)

=2.825/(997.2/1000)= 2.832molal

to prepare a 0.250 molal solution of KOH, starting with 100.0ml ofthe orginal solution

0.250*X =2.832 *100

X = 1132.8 ml of water you have to add

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3 years ago