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Harlamova29_29 [7]
3 years ago
10

Calculate the density of the four solutions. All of the solutions has the volume equal to 25 ml. Red solution has 25.0 g of mass

. Green has 26.5 g of mass. Yellow has 28.2 g of mass and Blue one has 30.0 g of mass.
(mark the one best answer)

A.
Red solution density is1.00 g/ml and the blue solution density is 0.83 g/ml

B.
Green solution density is 1.06 g/ml and blue solution density is 1.20 g/ml

C.
Green solution density is 0.94 m=g/ml and yellow solution density is 0.88 g/ml

D.
Blue solution density is 1.00 g/ml and Red solutio density 1.20 g/ml
Chemistry
1 answer:
Scilla [17]3 years ago
3 0

Answer:

              B. Green solution density is 1.06 g/ml and blue solution density is 1.20 g/ml

Explanation:

Density is given as,

                               D = Mass / Volume

Red Solution,

                               D = 25 g / 25 mL

                               D = 1 g/mL

Green Solution,

                               D = 26.5 g / 25 mL

                               D = 1.06 g/mL

Yellow Solution,

                               D = 28.2 g / 25 mL

                               D = 1.128 g/mL

Blue Solution,

                               D = 30 g / 25 mL

                               D = 1.20 g/mL

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<h3>Further explanation </h3>

In general, the reaction takes place in the open air. If the reaction results in the form of gas as in combustion, the mass of the reaction results will be smaller than the original mass.  

Conservation of mass applies to a closed system, where the masses before and after the reaction are the same

So In a closed/isolated system, the total mass of the substance before the reaction will be equal to the total mass of the reaction product.

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Mass of solution A  = 70 g

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The planet Mercury takes 176 days to do one spin around its pole. Compared to the Earth,
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The sun would appear to move more slowly across Mercury's sky.

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