How do scientists answer questions?
1 answer:
You might be interested in
Answer: The mass of sodium bromide dihydrate is 0.208 grams
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.
where,
n = moles of solute
= volume of solution in ml = 250 ml
moles of =
Now put all the given values in the formula of molality, we get
Therefore, the mass of sodium bromide dihydrate is 0.208 grams
Answer:
The choice of the answer is fourth option that is -61 degrees.
Therefore the temperature drop is -61°Centigrade.
Explanation:
Given:
The temperature in a town started out at 55 degrees
Start temperature = 55°Centigrade. (Initial temperature)
End of the Day = -6°Centigrade. (Final temperature)
To Find:
How far did the temperature drop?
Solution:
We will have,
Substituting the above values in it we get
Therefore the temperature drop is -61°Centigrade.