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3 years ago

The mass of a block is 12 grams and the volume is 6 ml. Calculate the density of the

Chemistry

1 answer:

KengaRu [80]3 years ago

3 0

Answer:

The density of block is 2 g/mL.

Explanation:

Density:

Density is equal to the mass of substance divided by its volume.

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.

Given data:

mass of block = 12 g

volume = 6 mL

density = ?

Now we will put the values in the formula,

d= m/v

d = 12 g/ 6 mL

d = 2 g/mL

so, the density of block is 2 g/mL .

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Hello!

Ok so for this problem we use the ideal gas law of PV=nRT and I take it that the scientist needs to store 0.400 moles of gas and not miles.

So if we have
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Maksim231197 [3]

Answer:

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Explanation:

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This table shows such classification:

pH classification

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Thus, since the pH of the solution is 8.3, which is greater than 7, the solution is classified as basic (alkaline).

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You can calculate the concentration of hydronium ions using antilogarithm properties:

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