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Thepotemich [5.8K]
3 years ago
5

Express the following concentration of solution in terms of molarity: 3.00 L of solution contains 1.75 mol of solute.

Chemistry
1 answer:
DENIUS [597]3 years ago
5 0
Great to know when Im in college nobody will answer my tough questions

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How does a buffer work
Liono4ka [1.6K]

A buffer is simply a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid. Buffers work by reacting with any added acid or base to control the pH.

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8 0
3 years ago
The number of electrons in n=1 and n=2 shells of aluminum are
harina [27]

Answer:

n=1 holds two electrons and n=2 holds eight electrons.

Explanation:

Hello

In this case, since the atomic number of aluminum is 13, its electron configuration is:

Al^{13}: 1s^2,2s^2,2p^6,3s^2,3p^1

In such a way, we can see that the level n=1 is filled with two electrons since the subshell s is able to hold two electrons and the level n=2 is also filled but with eight electrons as s holds two whereas p holds 6. Moreover, n=3 is holding three electrons.

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5 0
3 years ago
state whether the following changes are physical or chemical for rancidipication fixation of water 2 tearing of paper 3 rusting
Artist 52 [7]
1. rancidification fixation of water is CHEMICAL CHANGE

2. Tearing of paper is PHYSICAL CHANGE

3. Rusting if iron is CHEMICAL CHANGE

4. Electrolysis of water is CHEMICAL CHANGE
5 0
3 years ago
Can someone plz help me with this plz?????
Otrada [13]

Answer:

We can't see the options so we don't know what we can put

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4 0
3 years ago
Measure out 2.87 moles of sodium chloride (Nacl) into a clean dry cup. ​
Anettt [7]

Answer: weigh is m = n × M = 2.87 mol × 58.44 g/mol

Explanation: mass = amount of substance × molar mass

M((NaCl) = 22.99 +35.45

6 0
3 years ago
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