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2 years ago

Most scientific investigations are driven by the desire to answer a question. true or false

Chemistry

1 answer:

beks73 [17]2 years ago

8 0

This awnser will be true because that's what it is and will always be

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A nitrde ion has 7protons,8nutrons and 10 electrons. what is the overall change

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the overall charge on the nitride anion is

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N power 3 − → the nitride anion

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2 years ago

Which family is most likely to form a 2+ ion?

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I think the family of Group 2 metals are most likely to form a 2+ion.

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Two children on a seesaw are able to balance perfectly while on Earth.would they still be balanced if you saw was brought to the

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3 years ago

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2 years ago

8. What volume (ml) of a 5.45 M lead nitrate solution must be diluted to 820.7 ml to make a

Ganezh [65]

212 ml of lead nitrate is required to prepare a dilute solution of 820.7 ml of lead nitrate.

Answer:

Option A.

Explanation:

Similar to Avagadro's law, there is another law termed as dilution law. As the product of volume and normality of the reactant is equal to the product of volume and normality of the product from the Avagadro's law. In dilution law, it will be as product of volume and concentration of the solute of the reactant is equal to the product of volume and concentration of solution.

$C_{1} V_{1} =C_{2} V_{2}$

So, as per the given question C1 = 5.45 M of lead nitrate and V1 has to be found. While C2 is 1.41 M of lead nitrate and V2 is 820.7 ml.

Then, $(5.45*V_{1} ) = (820.7*1.41)$

$V_{1}=\frac{820.7*1.41}{5.45}= 212.33 ml$

So nearly 212 ml of lead nitrate is required to prepare a dilute solution of 820.7 ml of lead nitrate.

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2 years ago