2 years ago

What is the density of an object with a mass with a mass of 60 g and a volume of 2 cm 3 ?

1 answer:

5 0

Density is mass over volume, so the density of this object is:
60grams/2cm3

Which is 30g/cm3 (30 grams per cubic centimeter)

Hope this helped

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nordsb [41]

I had the same question, it's most likely B.

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zzz [600]

The answer is B. Flammability

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DIA [1.3K]

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olga_2 [115]

Both containers have the same number of molecules= 5.62 x 10²³

<h3>Further explanation</h3>

Given

22.4 L of hydrogen gas

22.4 L of oxygen gas

25°C and 1 atm.

Required

true statement

Solution

Conditions at T 25 ° C and P 1 atm are stated by RTP (Room Temperature and Pressure). Vm in this condition = 24 liters / mol

and from Avogadro's Law :

<em>At the same temperature and pressure, the ratio of gas volume will be equal to the ratio of gas moles </em>

So two gas have the same molecules

1 mol = 6.02 x 10²³ molecules

24 L = 1 mol, so for 22.4 L :

$\tt \dfrac{22.4~L}{24~L}\times 6.02\times 10^{23}~molecules=5.62\times 10^{23}~molecules$

6 0

2 years ago