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Osmotic Pressure and Osmotic Potential

How much NaNo...

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How much NaNo3 must be weighed out to make 50 mL of an aqueous solution containing 70 mg Na+ per ml?

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N a N O_{3}

must be weighed out to make

100 m L

of an aqueous solution containing

23 m g o f N a^{+} p e r m L

?

N a N O_{3}

weighed to make

50 m L

of an aqueous solution containing 70.0

m g

N a^{+}

m L

g

. (Rounded off to the nearest integer)

[Given: Atomic weight in

g m o l^{- 1}

. Na: 23; N: 14; O: 16.]

Q. Find the weight of

N a N O_{3}

in grams (Rounded off to nearest integer), required to make 50 mL of an aqueous solution containing 70 mg per mL of

N a^{+}

ions

[Given:Atomic weight in

g m o l^{- 1} [N a : 23; N : 14; O : 16]

Q. A solution contains

75

N a C l

per mL. To what extent must it be diluted to give a solution of concentration

15

N a C l

per mL of solution?

Q. How many ml of water must be added to

48 m l

of alcohol to make a solution that contains

25 %

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