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egoroff_w [7]
3 years ago
15

Can alluminium sulphate or carbonate test the purity of water​

Chemistry
1 answer:
Dominik [7]3 years ago
7 0

Explanation:

When added to water, aluminum sulfate causes microscopic impurities to clump together into larger and larger particles. These clumps then settle to the bottom of the container and can be filtered out. This makes the water safer to drink

,

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oc Inmaking and Stu Dent are working together in lab to make a buffer. Doc measures exactly 30.0 mL of 0.0635 M acetic acid solu
MAXImum [283]

Answer:

The total volume of the buffer is 75,0mL

Explanation:

A buffer is a mixture of a weak acid with its conjugate base or a weak base with its conjugate acid.

The buffer than Stu and Doc made is:

CH₃COOH ⇄ CH₃COO⁻ + H⁺

Doc add 30.0 mL of 0.0635 M CH₃COOH while Stu add 45.0 mL of 0.0285 M NaCH₃COO (CH₃COO⁻)

Thus, the total volume of the buffer is:

30,0mL + 45,0mL =<em> 75,0 mL</em>

I hope it helps!

5 0
3 years ago
Describe how to make 1.50 liters of a 0.01 M ammonium chloride solution
Charra [1.4K]
Hello!

To know how many grams of Ammonium Chloride ( a solid) you'll need to make 1.50 L of a 0,01 M solution you'll need to use the definition of molar concentration (M=mol/L) in the following way:

1,50 L* \frac{0,01 mol NH_4Cl}{1L}* \frac{53,489gNH_4Cl}{1 mol NH_4Cl}=0,8023 g NH_4Cl

So, you'll need to dissolve 0,8023 g of Ammonium Chloride in 1,5 L of water to make this solution.

Have a nice day!
4 0
3 years ago
a chemical company makes pure silver by reacting silver nitrate with Zinc. the company needs to make 800 grams of pure silver fo
shutvik [7]

The reaction between zinc and silver nitrate is

Zn + 2 AgNO3 \rightarrow  Zn(NO3)2 + 2 Ag

Moles of Zn = m /M = 599 /65 = 9.2 mol

Moles of AgNO3 = m /M = 1500 /169 = 8.87 mol

Silver nitrate is reacting completely to give silver

Thus, moles of Silver nitrate is equivalent to silver = 8.87

For mass of silver produced

m /M = 8.87 = m /107

m = 949.24 g

Hence, the given quantity of reactants are sufficient to produce 800 g of silver as the amount of silver produced is 949.24 g

3 0
4 years ago
HELP PLEASE!
Lostsunrise [7]

If it is already balanced because the compounds aluminum(Al) and oxygen(O) have the same number of atoms

5 0
3 years ago
Which statements describe molecules? Check all that apply.
maria [59]

Answer:

Molecules are made of two or more atoms

Molecules range in size

Molecules are made of atoms of the same element or different elements.

5 0
3 years ago
Read 2 more answers
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