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kirill [66]
4 years ago
7

A 22.25 g piece of metal is dropped into a graduated cylinder with 126.3 mL of water. If the density of the metal is 4.43 g/cm3,

what is the total volume in the graduated cylinder in mL with the correct number of significant digits?
Chemistry
1 answer:
Klio2033 [76]4 years ago
5 0

Answer:

131.2 mL would be the total volume in the graduated cylinder.

Explanation:

Let's work with the density of metal to find out its volume

Metal density = Metal mass / metal volume

4.46 g/mL = 22.25 g / metal volume

Metal volume = 22.25 g / 4.46 g/mL = 4.98 mL

If we suppose aditive volume, total volume in the graduated cylinder will be:

126.3mL + 4.9mL =  131.2 mL

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Draw the skeletal (line-angle) structure for 2,2-dimethyl-4-propyloctane.
Allisa [31]

Answer :

Total carbons are in the structure = 13

Primary carbons are in the structure = 5

Secondary carbons are in the structure = 6

Tertiary carbons are in the structure = 1

Quaternary carbons are in the structure = 1

Explanation :

Primary carbon : It is a carbon atom that is bound to only 1 carbon atom.

Secondary carbon : It is a carbon atom that is bound to 2 carbon atom.

Tertiary carbon : It is a carbon atom that is bound to 3 carbon atom.

Quaternary carbon : It is a carbon atom that is bound to 4 carbon atom.

As we are given the name of compound is, 2,2-dimethyl-4-propyloctane.

In this compound, eight carbon are align in a straight line, two methyl group are attached at 2nd position of the carbon in main chain and a propyl group that is three membered carbon chain is attached at 4th position of the carbon in main chain.

The given compound skeletal structure is shown below.

6 0
3 years ago
What are some of the structures inside a cell that help it to live and perform its role in an organism.
Blababa [14]

Answer:

Cells have many structures inside them called organelles. These organelles are like organs in a human that help a organism survive. Mitochondria are the power House of the cell and provide energy for the cell.

4 0
3 years ago
Which practice is an unsustainable way of managing resources?
Sergeeva-Olga [200]

Explanation:

Unsustainable way of managing resources means using resources in an unjustifiable manner, using without keeping in the needs for future generations. That is disobeying the principles of sustainability.

For examples release of toxic industrial wastes in rivers and thus, polluting it. Or, Deforestation of land for agricultural or industrial purposes. Thus, reducing the oxygen carrying capacity of Earth.

7 0
3 years ago
Consider the following numbered processes: 1. A → 2B 2. B → C + D 3. E → 2D ΔH for the process A → 2C + E is
aivan3 [116]

Answer:

ΔH = ΔH₁ + ΔH₂ - ΔH₃

Explanation:

Given that:

1. A → 2B

2. B → C + D

3. E → 2D

Assuming from the corresponding ΔH for process 1, 2 and 3 are ΔH₁, ΔH₂, ΔH₃ respectively.

To estimate the ΔH for the process A → 2C + E

We multiply 2 with equation 2 where (B → C + D)

2B → 2C + 2D ⇒ 2ΔH₂

Also, let's switch equation (3), such that we have,

2D → E -ΔH₃

The summation of all the equation result into :

A → 2C + E

where; ΔH = ΔH₁ + ΔH₂ - ΔH₃

6 0
3 years ago
Consider the two electron arrangements for neutral atoms A and B. Are atoms A and B the same element? A - 1s2, 2s2, 2p6, 3s1 B -
iogann1982 [59]

✨✨✨✨✨✨✨✨✨✨✨✨

<h2><em><u>Technically yes but no because you have to fill the 3s orbital before the 5s orbital</u></em></h2>

<em><u>✨</u></em><em><u>✨</u></em><em><u>✨</u></em><em><u>✨</u></em><em><u>✨</u></em><em><u>✨</u></em><em><u>✨</u></em><em><u>✨</u></em><em><u>✨</u></em><em><u>✨</u></em><em><u>✨</u></em><em><u>✨</u></em>

3 0
3 years ago
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