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3 years ago

If you know the mass of Earth, what other single value would you need to know to calculate Earth's average density?

Chemistry

1 answer:

Dennis_Churaev [7]3 years ago

7 0

Answer:

Volume

Explanation:

Density:

Density is equal to the mass of substance divided by its volume. In order to find the density of earth when mass is given we have to calculate its volume. The volume of earth is calculated by using the volume formula for sphere. i.e 4/3 π r³. we also require radius to find the volume and we know that

Diameter = 2 × radius

The diameter of earth equator is 12756.75 Km. So we calculate the radius by dividing the diameter by 2. Then by putting the value of radius in 4/3 π r³ we will get the volume and then we can calculate the density of earth.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

Symbol:

The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.

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UkoKoshka [18]

Answer:

Follows are the answer to this question:

Explanation:

pleas find the attachment file.

Formula for ΔE:

$\Delta E = \sum \text{Bond energy of recatants}- \sum \text{Bond energy of Products}$

$= 6 ( B.E_{C-C}) +12 (B.E_{C-H}) +(B.E_{o \ = \ o}) - 6(B.E_{C-C})-10(B.E_{C-H}) -( B.E_{C=0}) -2(B.E_{0-H})\\\\ = \bold{2 (B.E_{C-H}) +(B.E_{o \ = \ o}) -( B.E_{C=0}) -2(B.E_{0-H})}\\\\$

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4 0

3 years ago

1.25 x 1025 molecules of glucose (C H202) is<br> how many moles of glucose?

ExtremeBDS [4]

Answer:

1281.25 Moles of glucose

Explanation:

Multiply 1.25x1025= 1281.25

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3 years ago

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Nesterboy [21]

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3 years ago

A 0.307-g sample of an unknown triprotic acid is titrated to the third equivalence point using 35.2 ml of 0.106 m naoh. calculat

Jet001 [13]

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3 years ago

What is pseudo - order reaction

zubka84 [21]

Explanation:

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For example, hydrolysis of ester

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2 years ago

Read 2 more answers