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The density of a certain type of steel is 8.1 g/cm3. What is the mass of a 124 cm3 chunk of this steel? Show

posledela

Mass of the steel is $1004.4 g$

density of a substance can be regarded as the ratio of the mass of that substance to that of it's volume.

Mass of substance can be regarded as the quantitative measure of inertia, it can be simply explained as a fundamental property of all matter

We can express this mathematically as ;

$Density= \frac{ mass }{volume }$

Given :

Density of this steel= 8.1g/cm3

$Mass= 124 cm^{3}$

If we make Mass subject of formula,

$Mass= ( density *volume)$

Then let us substitute the values into the expression

$Mass= (124*8.1)$

$= 1004.4 g$

Therefore, mass of the steel is $1004.4 g$

Learn more at: brainly.com/question/9196460?referrer=searchResults

8 0

3 years ago

A B C D 1) NaNH2 2) MeI 3) 9-BBN 4) H2O2, NaOH 1) Br2 2) Excess NaNH2 3) H2O 1) Br2 2) Excess NaNH2 3) H2O 4) H2SO4, H2O, HgSO4

marissa [1.9K]

Answer:

The question has some part missing which I have added in the attachment.

Explanation:

The reactions given occur under certain reagents, which we are told to pick for each of the reaction synthesis. Conventionally, halogens have the ability to undergo addition reactions with hydrocarbons by breaking down the double or triple bond in them to a single bond, this usually occur by electron donation and electron acceptor.

The attachment shows the reactions and the necessary reagents required for each

4 0

3 years ago

When magnesium chloride (MgCl2) dissolves in water, it dissociates into magnesium ions and chloride ions. How many moles of ions

timama [110]

0.448 moles of ions will form when a 42.66-gram sample of magnesium chloride is dissolved in water (option A).

<h3>How to calculate number of moles?</h3>

According to this question, when magnesium chloride (MgCl2) dissolves in water, it dissociates into magnesium ions and chloride ions as follows:

MgCl2(aq) ⟶ Mg2+(aq) + Cl−(aq)

However, if a 42.66-gram sample of magnesium chloride is dissolved in water, this means that 42.66g/molecular mass of MgCl2 will be the number of moles of the ionic products.

molecular mass of MgCl2 = 95.3g/mol

moles = 42.66g ÷ 95.3g/mol = 0.448mol

Therefore, 0.448 moles of ions will form when a 42.66-gram sample of magnesium chloride is dissolved in water.

Learn more about moles at: brainly.com/question/26416088

#SPJ1

7 0

2 years ago

Round to 4 significant figures. 35.5450

IrinaVladis [17]

Answer:

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Explanation:

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8 0

3 years ago

Read 2 more answers

A piece of metal with a mass of 147g and a volume of 21ml. Calculate the density of the metal.

kipiarov [429]

Answer:

density of a piece of metal = 7 gr/ml

Explanation:

See the file please

3 0

3 years ago

Read 2 more answers