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3 years ago

How to separate a mixture of Sodium chloride (salt) and sugar

Chemistry

1 answer:

Zigmanuir [339]3 years ago

8 0

By using chromatography

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A sample of mercury has a mass of 607.0 lb and a volume of 0.717 ft. What is its specific gravity? Number SG= What are the units

stepan [7]

Answer:

Specific gravity of mercury is 13.56 and it is an unit-less quantity.

Explanation:

Mass of the mercury = m = 607.0 lb = 275330.344 g

1 lb = 453.592 g

Volume of the mercury = v = $0.717 ft^3=20,303.18 mL$

$1 ft^3 = 28316.847 mL$

Density of the mercury = d= $\frac{m}{v}=\frac{275330.344 g}{20,303.18 mL}$

d = 13.56 g/mL

Specific gravity of substance = Density of substance ÷ Density of water

$S.G=\frac{d}{1 g/mL}$

Specific gravity of mercury :

$S.G=\frac{13.56 g/mL}{1 g/mL}=13.56$ (unit-less quantity)

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A decrease in the overall volume of gases namely hydrogen would prevent nuclear fusion in a nebula.

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3 years ago

PLEASE ANSWER “Tessa uses a toy slingshot to launch a tennis ball across the park for her dog to fetch. For her first launch, sh

Inessa05 [86]

The third launch ( with 300 N force) had the greatest acceleration of the tennis ball

<h3>Further explanation </h3>

Newton's 2nd law explains that the acceleration produced by the resultant force on an object is proportional and in line with the resultant force and inversely proportional to the mass of the object

∑F = m. a

$\large{\boxed{\bold{a=\frac{\sum F}{m}}}$

F = force, N

m = mass = kg

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From the above equation it has been shown that the force acting on the object is directly proportional to its acceleration, so <em>the greater the force exerted on the object, the greater the acceleration of the object produced.</em>

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3 years ago

If most objects are made up of free space then why can we put our hands through a book or wall?

Mazyrski [523]

I suppose you mean to ask why we can't go through obstacles.

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4 years ago

How to separate a mixture of Sodium chloride (salt) and sugar​

How to separate a mixture of Sodium chloride (salt) and sugar