HCl (g) + O2 Cl2 (g) + H2O (g)

1 answer:

4 0

PV = nRT

Pressure times volume = number of moles times ideal gas constant times temperature

50mL = .05L

1 atm (.05) = n (.0821) (273)

.05 = n (22.4133)

.022 = n (number of moles)

6.022E23 molecules = 1 mole

.022 x 6.022E23 = 1.325E23 molecules

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1. Fill in the blanks. Example: A nitrogen atom takes on a 3- charge when it forms an anion and becomes nitride. a. A magnesium

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Answer: a. +2, cation and magnesium ion .

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Explanation:

When an atom accepts an electron negative charge is created on atom and is called as anion.

When atom loses an electron positive charge is created on atom and is called as cation.

Magnesium (Mg) with atomic number of 12 has electronic configuration of 2,8,2 and thus it can lose 2 electrons to form $Mg^{2+}$ cation and becomes magnesium ion.

Chlorine (Cl) with atomic number of 17 has electronic configuration of 2,8,7 and thus it can gain 1 electron to form $Cl^{-}$ anion and becomes chloride.

Oxygen (O) with atomic number of 8 has electronic configuration of 2,6 and thus it can gain 2 electrons to form $O^{2-}$ anion and becomes oxide.

Potassium (K) with atomic number of 19 has electronic configuration of 2,8,8,1 and thus it can lose 1 electron to form $K^{+}$ cation and becomes potassium ion.