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NISA [10]
3 years ago
9

How many Neutrons are in a ^15N isotope?

Chemistry
1 answer:
Goshia [24]3 years ago
5 0
There are 150 neutrons in 15N
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Calculate the volume of .987 mol of gas at stp will occupy
aalyn [17]
Number of moles = volume / (molar volume)
Molar volume at stp = 22.4 dm^3
Volume = no of moles × molar volume
= 0.987 × 22.4
= 22.1088 dm^3
= 22108.8 cm^3

Hope it helped!
5 0
4 years ago
Read 2 more answers
Calculate the molarity of 0.50 mol MgCl2 in 750 ml of solution.
Vedmedyk [2.9K]

Answer : The correct answer for molarity of MgCl₂ solution is 0.67 M.

Molarity :

It expresses concentration of any solution . It can be defined as mole of solute present in volume of solution in Liter .

It uses unit M or \frac{mol}{L}

It can be formulated as :

Molarity (\frac{mol}{L} ) = \frac{mole of solute (mol)}{volume of solution (L)}

Given : mol of MgCl₂ (solute ) = 0.50 mol

Volume of solution = 750 mL

Following steps can be done :

Step 1 ) To convert volume of solution from mL to L

1 L = 1000 mL

Volume of solution = 750 mL * \frac{1 L}{1000mL}

Volume of solution = 0.750 L

Step 2) To find molarity

Plugging mole of solute and volume of solution in molarity formula as :

Molarity = \frac{0.50 mol}{0.750 L }

Molarity = 0.67 \frac{mol}{L}

Hence molarity of MgCl₂ solution is 0.67 M

4 0
4 years ago
Read 2 more answers
A man walks 4 miles in 2 hours. Calculate his average speed in miles per hour (mi/hr).
marishachu [46]

Answer:

2mi/1 hr

Explanation:

4÷2=2

2÷2=1

hope this helps

6 0
3 years ago
Chemical reaction that releases energy, usually as heat
PolarNik [594]
Sodium has a very violent reaction with water. And burns in cold water having a highly exothermic reaction.
2Na + 2H2O ➡ 2NaOH + H2
7 0
4 years ago
SnBr2<br><br> what is the name of this formula?
Grace [21]
Answer:

Tin bromide


Explanation:

Tin(II) bromide is a chemical compound of tin and bromine


3 0
3 years ago
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