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3 years ago

Write the formal charge for C,H and O in CH3COOH

2 answers:

8 0

<span>The formal charge of an atom is the assigned charge to the atom. Carbon 1 and carbon 2 both have +4 charge, H has a charge of +1, while O is calculated by the equation -1=4+3+4+2x where -1 is the charge of CH3COO and x is the charge of each O atom. Charge of O atom is -6.</span>

dybincka [34]3 years ago

5 0

Answer:

The formal charge of an atom is the assigned charge to the atom. Carbon 1 and carbon 2 both have +4 charge, H has a charge of +1, while O is calculated by the equation -1=4+3+4+2x where -1 is the charge of CH3COO and x is the charge of each O atom. Charge of O atom is -6.

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3 years ago

What is the pH of a 0.08 M solution of Ca(OH),?

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Answer:

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Explanation:

Ca(OH)2 is a strong base, so it dissociates completely. A 0.08 M solution of Ca(OH)2 is 0.16 M OH-, since every mole of Ca(OH)2 has 2 OH-.

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3 years ago

If 100 ml of a 0.5 M HCI Solution is diluted with water to 1000ml, what is the new concetration?

Vesna [10]

Answer:

$0.05\ \text{M HCl}$

Explanation:

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$V_2$ = Final volume = 1000 mL

$M_1$ = Initial concentration = 0.5 M

$M_2$ = Final concentration

We have the relation

$\dfrac{M_1}{M_2}=\dfrac{V_2}{V_1}\\\Rightarrow M_2=M_1\dfrac{V_1}{V_2}\\\Rightarrow M_2=0.5\times \dfrac{100}{1000}\\\Rightarrow M_2=0.05\ \text{M HCl}$

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3 years ago

When magnesium combines with oxygen, the reaction involves

nikdorinn [45]

Answer:

The correct answer is option c. transfer of electrons from Mg to O.

Explanation:

Hello!

Let's solve this!

When Magnesium (Mg) reacts with oxygen (O), magnesium oxide is formed.

This reaction is spontaneous and occurs with oxidation number +2 of magnesium and oxidation number -2 of oxygen. It is an ionic union, so magnesium transfers its electrons to oxygen.

We conclude that the correct answer is option c. transfer of electrons from Mg to O.

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3 years ago