Molar mass Argon ( Ar ) = 39.95 g/mol
39.95 g ---------------- 6.02 x 10²³ atoms
0.377 g ---------------- ( atoms Ar )
( atoms Ar ) = 0.377 x ( 6.02 x 10²³ ) / 39.95
( atoms Ar ) = 2.26954 x 10²³ / 39.95
= 5.68 x 10²¹ atoms Ar
hope this helps!
Answer:
<h3>The answer is 19.3 g/cm³</h3>
Explanation:
The density of a substance can be found by using the formula

From the question
mass = 57.9 g
volume = 3 cm³
We have

We have the final answer as
<h3>19.3 g/cm³</h3>
Hope this helps you
"0.538 g" would be the mass of the water.
Given values are:
Hydrated salt,
Anhydrous salt,
→ The mass of water lost by the salt will be:
= 
By substituting the given values, we get\
= 
= 
Thus the above answer is appropriate.
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Answer:
buffer action
Explanation:
the property of the solution to resist the changes in its pH value on the addition of small amounts of strong acid or base is known as buffer action