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Yuki888 [10]
3 years ago
11

What is the molarity of 42.1 g of AgNO3 dissolved in 1.75 L of solution?

Chemistry
1 answer:
Vaselesa [24]3 years ago
4 0
B 0.248 is the answer
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Pleas help me i have to submit homework i hour<br> i will mark brainliest
steposvetlana [31]

Answer:

I can help

Explanation:

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6 0
3 years ago
8. What was the original concentration in the BHL sample, if the dilution is 1:500 and the concentration 0.07 mg/ml
Yakvenalex [24]

Answer:

The original concentration is "35 mg/ml".

Explanation:

According to the question,

The solution is diluted,

= 1:50

The initial volume,

V1 = 1 ml

Final concentration,

= 0.07 mg

then,

The final volume,

V2 = 500 ml

As we know,

⇒ V_1N_1=V_2N_2

or,

⇒ N_1=\frac{V_2N_2}{V_1}

On substituting the values, we get

⇒       =\frac{500\times 0.07}{1}

⇒       =\frac{35}{1}

⇒       =35 \ mg/ml

4 0
3 years ago
2Ni(OH) → Ni2O + H2O <br> How many moles of water forms from 4.20 mol of nickel (I) hydroxide?
butalik [34]

Answer:

2.1 moles of water formed.

Explanation:

Given data:

Moles of water formed = ?

Moles of Ni(OH) = 4.20 mol

Solution:

Chemical equation:

2Ni(OH)    →  Ni₂O + H₂O

Now we will compare the moles of Ni(OH)  with water.

             Ni(OH)           :            H₂O

                2                 :              1

              4.20             :            1/2×4.20 = 2.1 mol

2.1 moles of water formed.

5 0
3 years ago
In a given substance, as the temperature of a substance increases, the volume of that substance
steposvetlana [31]
C. Increases. Increasing temperature=Increasing Volume
3 0
3 years ago
What are some foods that require dry ice
Bond [772]
Doesn’t require it but can be used with red meat and seafood
6 0
3 years ago
Read 2 more answers
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