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Please Help! Explain if possible.

If an object has a density of 4.2 g/mL, what is its density in hg/L?

0.0042 hg/L
0.042 hg/L
42 hg/L
4,200 hg/L

Respuesta :

transitionstate

Answer:

             42 hg/L

Solution:

Converting Grams into Hectograms:

                                                          As we know one gram is equal to 0.01 Hectogram. Using this relation we can convert 4.2 g into hg as,

                                                 1 g  =  0.01 hg

So,

                                              4.2 g  =  X hg

Solving for X,

                     X  =  (4.2 g × 0.01 hg) ÷ 1 g

                     X  =  0.042 hg

We also know one millilitre (mL) is equal to 0.001 litre (L).

Therefore,

                               Density  =  Mass ÷ Volume

Putting new values,

                               Density  =  0.042 hg ÷ 0.001 L

                               Density  =  42 hg/L

Toxicthunder4

Answer:

            42 hg/L

Solution:

Converting Grams into Hectograms:

                                                         As we know one gram is equal to 0.01 Hectogram. Using this relation we can convert 4.2 g into hg as,

                                                1 g  =  0.01 hg

So,

                                             4.2 g  =  X hg

Solving for X,

                    X  =  (4.2 g × 0.01 hg) ÷ 1 g

                    X  =  0.042 hg

We also know one millilitre (mL) is equal to 0.001 litre (L).

Therefore,

                              Density  =  Mass ÷ Volume

Putting new values,

                              Density  =  0.042 hg ÷ 0.001 L

                              Density  =  42 hg/L

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