Chemistry, 02.11.2019 07:31 saguil3388

Asolution x is made by taking 10.00 ml of a 1.0 m solution and add enough water to make 100.0 m
total volume. solution y is made by taking 5.0 ml of solution x and diluting it again by adding it to
95 ml of water. calculate the molarity of solutions x and y.

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Answer from: MeTooFoodYum

Molarity of solution X is 0.1 M

Molarity of solution Y is 0.05 M

Explanation:Dilution involves addition of more solvent to a solution resulting to a decrease in concentration.Solution X is made by taking 10 mL of a 1.0 M and adding water to make a total volume of a 100 mL.Using dilution equation we can determine the Molarity of solution x.Dilution equation is given by, M₁V₁ = M₂V₂, where M₁ and M₂ are the initial and diluted solution concentrations while V₁ and V₂ are the start and the final volume respectively.

Therefore;

M₂ = M₁V₁ ÷ V₂

= (1.0 M × 0.01 L) ÷ 0.1 L

= 0.1 M

Thus, the concentration of solution X is 0.1 M

On the other hand, solution Y is made by using 5 mL of solution X and diluting it again by adding it to 95 mLTherefore, using dilution equation we can find the molarity of solution Y

M₁V₁ = M₂V₂

M₁ = 0.1 M (molarity of solution X)

V = 5 mL

V₂ = 5 mL + 95 mL

= 100 mL

Thus, M₂= M₁V₁ ÷ V₂

= (0.1 M × 0.005 L) ÷ 0.01 L

= 0.05 M

Therefore, the molarity of solution Y is 0.05 M

Answer from: Quest

most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).

Answer from: Quest

the pseudoscience are like beliefs, theories, or like practices that are considered scientific

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Asolution x is made by taking 10.00 ml of a 1.0 m solution and add enough water to make 100.0 m

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