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3 years ago

4. A. What is the percent by mass of water present in CoCl2.6H20? B. Name the hydrate.

Chemistry

1 answer:

romanna [79]3 years ago

8 0

52.17%

using periodic table.. We get the molar mass respectively for C, O, Cl and H20 . You get an answer as 207 by adding all of them . Then as we have 6 water molecules and we get 108 . so we have to divide 108 and 207 then multiply the decimal with 100 . we get 52.17%

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To compute the required mass of the element to form the given molecules, we'll use the general formula shown below:

{eq}\displaystyle m_1=\frac{M_1}{M_2}\times m_2 {/eq}, where,

{eq}M_1 {/eq} is the molecular weight of the element.

{eq}M_2 {/eq} is the molecular weight of the given molecule.

{eq}m_2 {/eq} is the mass of the given molecule.

Answer and Explanation:

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The given value is:

The value of the mass of the water molecule is {eq}m_2=\rm 50\ grams {/eq}.

The chemical reaction for the formation of water...

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Formula for Mass: Definition & Examples

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Chapter 28 / Lesson 42

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What is mass? Learn the mass definition and how to find the mass of an object using the mass formula. See common mass characteristics and properties.