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alekssr [168]
3 years ago
11

Difference between cation and anion

Chemistry
1 answer:
Marrrta [24]3 years ago
7 0

A cation is an atom or a group of atoms bearing one or more positive electric charges. An anion is an atom or a group of atoms bearing one or more negative electric charges. Cations carry one or more positive charges. Anions carry one or more negative charges

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Write a balanced equilibrium equation for the dissolution of nai in water. include phases.
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Dissolution means to make the compound apart, So when we have ionic compounds like NaI which has metal and non-metal ions, It separates into parts of positive ions and negative ions. After we separate this compound apart we will put the charge of each on above its symbol and then start to balance the equation of the dissolution.

So the dissolution equation of NaI is:
NaI(s) → Na^+(s)  +   I^-(Aqu) 
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What method of heat transfer occurs when your skin feels hot outside on a sunny, summer day?
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Aqueous concentrated nitric acid is 69% hno3 by weight and has a density of 1.42 g/ml.
OleMash [197]

Answer: -

15.55 M

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Explanation: -

Let the volume of the solution be 1000 mL.

Density of nitric acid = 1.42 g/ mL

Total Mass of nitric acid Solution = Volume of nitric acid x Density of nitric acid

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Percentage of HNO₃ = 69%

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= 979.8 g

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Molarity is defined as number of moles per 1000 mL

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Molarity of HNO₃ = 15.55 M

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= 440.2 g

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Molality is defined as number of moles of HNO₃ present per 1000 g of water.

Molality of HNO₃ = \frac{15.55 x 1000}{440.2}

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Answer:

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