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garik1379 [7]
3 years ago
11

Some important points for hadpicking​

Chemistry
1 answer:
Svet_ta [14]3 years ago
8 0

Answer:

Handpicking right?

It is a very simple and easy method of separation. It doesn't require any kind of equipment to proceed. It takes very less time when performed for small quantity of mixture. It doesn't require any kind of preparation

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a solution contains 29.1g per litre of aluminium sulphate.calculate the number ofsulphate ions in 350cm^3 of the solution(Al=27,
JulijaS [17]

Answer:

it is 0.24 M

Explanation

Find the molarity of all ions in a solution that contains 0.165 moles of aluminum chloride in 820. ml solution. " Answer: [Al 3+1= 0.201 M. (CI) = 0.603M. ... 2) Find the molartiy  of each ion present after mixing 27 ml of 0.25 M HNO3 with 36 ml of ... of each ion and the mass of any precipitate when a 0.300 mole of aluminum.

8 0
3 years ago
Assign an oxidation number to each element in the following species. H2O​
VikaD [51]

Answer:

the oxidation number of hydrogen is +2, while oxygen is -2

5 0
3 years ago
A student investigated the diffusion of ammonia gas, NH3, and hydrogen chloride gas, HCl. The damp red litmus paper for NH3 chan
Alex Ar [27]

Answer:

43.96secs

Explanation:

M1 = molar mass of NH3 = 14 + (3x1) = 14 + 3 = 17g/mol

t1 = time for NH3 to diffuse = 30secs

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t2 = time for HCl to diffuse =?

From Graham's law of diffusion:

t2/t1 = √(M2/M1)

t2/30 = √(36.5/17)

t2/30 = 1.465

Cross multiply

t2 = 30 x 1.465

t2 = 43.96secs

Therefore it will take 43.96secs for the damp blue litmus paper to change colour for HCl.

8 0
3 years ago
The<br>volume<br>occupied by 5.0g in neon<br>03368 atm and<br>a temperatureof <br>35°C will be?​
olga55 [171]

Answer:

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4 0
3 years ago
Deanna stirred a teaspoon of sugar into a glass of warm water. The sugar completely dissolved in the water. Check any statement
Sergeeva-Olga [200]

Answer:

D

Explanation:

From my experience this is what happens when I put sugar in warm water glass

4 0
3 years ago
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