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Sergio039 [100]
3 years ago
10

A sample of 8.5 g NH 3 on oxidation produces 4.5 g of NO. Calculate the percent yield.

Chemistry
1 answer:
yanalaym [24]3 years ago
3 0

Answer:

nvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnv

Explanation:

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A chemist prepares a solution of magnesium chloride MgCl2 by measuring out 49.mg of MgCl2 into a 100.mL volumetric flask and fil
Flura [38]

Answer:  Molarity of Cl^- anions in the chemist's solution is 0.0104 M

Explanation:

Molarity : It is defined as the number of moles of solute present per liter of the solution.

Formula used :

Molarity=\frac{n\times 1000}{V_s}

where,

n= moles of solute

Moles=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{0.049g}{95g/mol}=5.2\times 10^{-4}moles  

V_s = volume of solution in ml = 100 ml

Now put all the given values in the formula of molarity, we get

Molarity=\frac{5.2\times 10^{-4}moles\times 1000}{100ml}=5.2\times 10^{-3}mole/L

Therefore, the molarity of solution will be 5.2\times 10^{-3}mole/L

MgCl_2\rightarrow Mg^{2+}+2Cl^-

As 1 mole of MgCl_2 gives 2 moles of Cl^-

Thus 5.2\times 10^{-3}  moles of MgCl_2 gives =\frac{2}{1}\times 5.2\times 10^{-3}=0.0104

Thus the molarity of Cl^- anions in the chemist's solution is 0.0104 M

6 0
3 years ago
What is thr valency of scadium
Hoochie [10]

scandium is a transition metal and shows a valency of 3.

4 0
4 years ago
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Nata [24]
Oregon trail would be the best answer
8 0
4 years ago
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How many protons and electrons are present in an argon atom?
scoray [572]
Protons: 7Electrons:7
4 0
3 years ago
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What number is equal to the amount of protons<br> and neutrons on the periodic table?
DENIUS [597]

Answer:

The mass number

Explanation:

The mass number of an atom is its total number of protons and neutrons.

I hope this helps a bit.

7 0
3 years ago
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