Answer:
4 sig figs: 20.18
Explanation:
the smallest amount of digits was 4 in the expression
Answer:
The answer to your question is V2 = 2666.7 ml
Explanation:
Data
Pressure 1 = P1 = 2 atm
Volume 1 = V1 = 4000 ml
Pressure 2 = P2 = 3 atm
Volume 2 = V2 = ?
Process
To solve this problem use Boyle's law.
P1V1 = P2V2
-Solve for V2
V2 = P1V1 / P2
-Substitution
V2 = (2)(4000)/3
-Simplification
V2 = 8000 / 3
-Result
V2 = 2666.7 ml
-Conclusion
If we increase the pressure, the volume will decrease.
Answer:
An element is a substance that is made up of the same kind of atoms and
cannot be broken down into simpler substances by any known chemical means
examples of element are iron boron carbon helium calcium hydrogen etc
To find molarity
1) number of mol of solute.
Solute is HCl.
M(HCl)= 1.0+35.5 =36.5 g/mol
25g *1 mol/36.5 g = 25/36.5 mol HCl
2) Molarity is number of mole of the solute in 1 L solution.
150 mL = 0.150 L
(25/36.5 mol HCl )/(0.150 L) = 25/(36.5*0.150) ≈ 4.57≈4.6 mol/L