Chemistry, 19.01.2020 23:31 icantspeakengles

Sam prepares a solution of sodium chloride with a concentration of 8 g/dm³. if he only used 2g of sodium chloride, what volume of water did he dissolve it in, in cm³?

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Answer from: joedawg50

The volume of water for 2 g sodium chloride with concentration of $\rm 8g/dm^3$ has been $\rm \bold{250\;cm^3}$ .

Concentration has been defined as the mass of solute with respect to the solution. The concentration has been expressed in various ways such as density, molarity, molality, etc.

The concentration of given solution has been $\rm 8g/dm^3$ . It has been stating that 8 gram of sample has been present in 1 cubic decimeter solution.

Volume of water

The volume of water has been obtained for 2 gram of sodium chloride solution as:

$\rm 8\;g=1\;dm^3\\2\;g=\dfrac{1}{8}\;\times\;2\;dm^3\\2\;g=0.25\;dm^3$

The volume of water for 2 g of solution has been 0.25 cubic decimeter.

The decimeter cube has been given as in terms of cubic centimeter as:

$\rm 1\;dm^3=1000\;cm^3\\0.25\;dm^3=0.25\;\times\;1000\;cm^3\\0.25\;dm^3=250\;cm^3$

The volume of water for 2 g sodium chloride with concentration of $\rm 8g/dm^3$ has been $\rm \bold{250\;cm^3}$ .

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Answer from: redrhino27501

The volume of water he dissolved the solute is 250 cubic centimeter.

Explanation:

Concentration = mass of solute in g / volume in dm^3

The concentration of a solution is defined as the ratio of mass of solute in grams to the volume of water in dm^3.

If concentration of a solution = 8 g/dm^3.

mass of solute =2 g.

Volume of a water = 2 / 8 = 0.25 dm^3. (or) 250 cubic centimeter.

Answer from: Quest

1.consider the following balanced equation and answer parts a through. show calculations for each part.

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.

explanation:

Answer from: Quest

Sorry i dont understand the question can you rephase it?

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Sam prepares a solution of sodium chloride with a concentration of 8 g/dm³. if he only used 2g of so...