Answer:
The original molarity is 1,1030M.
Explanation:
A dilution consists of the decrease of concentration of a substance in a solution (the higher the volume of the solvent, the lower the concentration).
We use the formula for dilutions:
C1 x V1 = C2 x V2
C1= (C2 xV2)/V1
C1= ( 1400 ml x 0,286 M)/363 ml
<em>C1=1,1030 M</em>
Answer:
0.607mol
Explanation:
n(AR) = mass / molar máss
= 24.3 /40
=0.607
Answer:
Whoa
Explanation:
What the blankkkk is this
Answer:
BaF2(s) ------> Ba2 (aq) + 2F- (aq)
Explanation:
Entropy refers to the degree of disorderliness in a system. Processes that lead to greater disorderliness in a system are said to increase the entropy of the system or lead to a positive value of ΔS.
If we consider the process, BaF2(s) ------> Ba2 (aq) + 2F- (aq), we will notice that ions were produced in solution thereby increasing the disorderliness of the system.
Answer:
The answer is
<h2>11.33 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
From the question
mass of metal = 34 g
volume of metal = final volume of water - initial volume of water
volume = 25.3 - 22.3 = 3.0 mL
The density is
We have the final answer as
<h3>11.33 g/mL</h3>
Hope this helps you