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CaHeK987 [17]
2 years ago
11

What is one separation process that can be used to separate water from sand in a mixture?

Chemistry
1 answer:
alexandr1967 [171]2 years ago
3 0

Answer:

evaporation?

Explanation:

evaporate the water leaving behind the sand?

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Using the significant figure it would be 27.3
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If 30 ml of water containing 15 mg of salicylate is extracted with 30 ml of chloroform, 2.59 mg of salicylate remains in the wat
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Answer:

Distribution coefficient: 4.79

Explanation:

Distribution coefficient is the ratio between equilibrium concentration of non-aqueous phase and aqueous phase where both solvents are inmiscible. The equation for the problem is:

Distribution coefficient: Concentration in chloroform / Concentration in Water

<em>Concentration in water: 2.59mg / 30mL = 0.08633mg/mL</em>

<em>Concentration in chloroform: (15mg-2.59mg) / 30mL = 0.4137mg/mL</em>

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Distribution coefficient: 0.4137mg/mL / 0.08633mg/mL

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One litre of hydrogen at STP weight 0.09gm of 2 litre of gas at STP weight 2.880gm. Calculate the vapour density and molecular w
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Answer:

we know, at STP ( standard temperature and pressure).

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weight of 1 Litre of hydrogen gas = 0.09g

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similarly,

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hence, vapor density of the gas is 16.128g.

Explanation:

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What is the collision theory
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what is the molarity of a solution that has 1.54 moles NaCI in a 3.7L solution. How do you prepare 50ml of 0.5 M of KCI from a s
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