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2 years ago

How many molecules of water of hydration surround each molecule of sodium carbonate decahydrate, Na2CO3•10H2O

Chemistry

2 answers:

Leno4ka [110]2 years ago

7 0

Answer:

10 molecules of water of hydration surround each molecule of sodium carbonate. That's why it is known as sodium carbonate decahydrate.

Explanation:

When the soluble compound sodium carbonate dissolves in water, the partial negatively charged side of the polar water molecules surround the positively charged sodium ions, while the partial positively charged side of the polar water molecules surround the negatively charged carbonate ions.

Klio2033 [76]2 years ago

3 0

10 Molecules Because the coefficient shows how many molecules are there

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3 years ago

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To determine the concentration of an EDTA solution, 4.11 g of Zn metal was used. The volume of EDTA solution needed to reach the

USPshnik [31]

Answer:

2.23M

Explanation:

Molarity of a solution is calculated thus

Molarity = number of moles (n) ÷ volume (V)

According to this question, 4.11g of Zn metal was used in order to reach a volume of EDTA solution of 28.26 mL.

28.26mL = 28.26/1000

= 0.02826L

Using mole = mass/molar mass to calculate no. of moles of Zn

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3 years ago

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Hoochie [10]

Answer:

Kindly check the explanation section.

Explanation:

Based on the description of the reacting -OH group containing Compound, the drawing of the chemical compound is given in the attached picture.

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The reaction between the OH containing compound and PCC is an oxidation reaction.

Looking at the carbon number 1 which the first OH group and CH3 are attached to. Oxidation can not occur here as tertiary alcohol can not be oxidize.

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The equation for the reaction is also given the the attached picture.

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3 years ago

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