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Mamont248 [21]
2 years ago
8

WILL GIVE BRAINLIEST

Chemistry
2 answers:
Solnce55 [7]2 years ago
7 0

Answer:

ust use the equation

M1 X V1 = M2 X V2

where M1 is the initial concentration, V1 the volume of M1, M2 the final concentration and V2 the final volume. Here you are looking for V1 so, first solve for V1 and put in the numbers.

V1 = (M2 X V2)/M1 = (3 X 0.5)/18 = 0.5/6 = 0.083 L or 83 mL

Explanation:

pls make me brainliest

kati45 [8]2 years ago
4 0

Answer:

V₁  = 55.55 mL

Explanation:

Given data:

Initial volume V₁ = ?

Initial molarity M₁ = 18.0 M

Final volume V₂= 500.0 mL

Final molarity M₂= 2.00 M

Solution:

Formula:

M₁V₁   =   M₂V₂

V₁  = M₂V₂ /M₁

By putting values,

V₁  =  2.00 M × 500.0 mL/ 18.0 M

V₁  = 1000 M.mL /18.0 M

V₁  = 55.55 mL

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If 10 g of NaOH is diluted to 500 ml with water then  the concentration expressed in percent is 0.5 mol/L .

Calculation ,

Given mass in gram = 10 g

Number of moles = given mass /molar mass = 10 g / 40 g/mol = 0.25mole

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Putting the value of mass and volume in equation i we get concentration expressed in percent .

C = number of moles ×100/ volume in liter = 0.25mole ×100/ 0.5 L

C  =  0.5 mol/L

Concentration of solution in terms of percentage can be expressed in two ways

1) percentage by mass

2) percentage by volume

Hence, for liquid solutions, concentration is expressed in terms of percentage by volume.  

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1 year ago
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3 years ago
What are the possible values of ml for l=2<br> ​
Marrrta [24]

Answer:

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Explanation:

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For l= 2, the possible values of the magnetic quantum number are; -2, -1, 0, 1, 2

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