Answer:
its a chemical Reaction
Explanation:
2. Calculate the percentage yield for the production of ammonia if 23g of NH, was made from 56g of nitrogen and 12g of hydrogen. Give your answer to 2 decimal places. N₂ + 3H₂ → 2NH3
Answer:
the science behind this is 45
Explanation:
you times it by 4N²
divide it by ⁶Mn
Which Barium Salt is insoluble in water?
a) Calcium Bromide b) Potassium Bromide
c) Silver bromide d) Sodium bromide
Answer:
D
Explanation:
2. How do you make a solution of lower concentration, using a stock solution of higher concentration.
what is the difference between biology and anatomy?
Answer:
Biology is the study of nature, like plants and animals, while anatomy is the study of the human body, like our bones and muscles.
Explanation:
Hope it helped!
1) Find the mass of 2.7 moles of NaCl.
Answer:
157. 788 grams
Explanation:
number of moles = mass/molar mass.
hence the mass = molar mass × number of moles
m = 58.44 × 2.7 = 157.788 grams
The term mole concept is used here to determine the mass of sodium chloride. The mass of 2.7 moles of NaCl is 157.78 g.
What is a mole?One mole of a substance is defined as that quantity of it which contains as many entities as there are atoms exactly in 12 g of carbon - 12. The formula used to calculate the number of moles is:
Number of moles = Given mass / Molar mass
The mole concept is a convenient method to express the amount of a substance. The elementary particles in moles may be atoms, ions, molecules etc.
The molar mass of NaCl = 58.44 g/mol
Here the number of moles of NaCl = 2.7
Mass = Molar mass × Number of moles
58.44 g/mol × 2.7 = 157.78 g
Thus the mass of NaCl is 157.78 g.
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Kepler-186f
a. Identify the element that makes up the initial composition of the star.
b. Explain the process of fusion between these atoms that occurs in all stars