Metals on the left side, metalloids on the staircase, nonmetals on right side
Answer:
0.032 L or 32 mL
Explanation:
Use the dilution equation M1V1 = M2V2
M1 = 9.0 M
V1 = This is what we're looking for.
M2 = 0.145 M
V2 = 2 L
Solve for V1 --> V1 = M2V2/M1
V1 = (0.145 M)(2 L) / (9.0 M) = 0.032 L
Answer:
hope this help....
Explanation:
Neutralization is the reaction of an acid and a base, which forms water and a salt. Net ionic equations for neutralization reactions may include solid acids, solid bases, solid salts, and water.
Answer:
ΔPV = -9911 J
Explanation:
The combustion of 1 mole of heptane is:
C₇H₁₆(l) + 11O₂(g) → 7CO₂(g) + 8H₂O(l)
The change in number of moles of gas molecules is:
Δn = 7 moles products - 11 moles reactants = -<em>4 moles</em>
Using ideal gas ΔPV is:
ΔPV = ΔnRT
Where:
Δn is -4mol
R is 8,314472 J/molK
T is 298K
Replacing:
<em>ΔPV = -9911 J</em>
<em />
I hope it helps!
Answer:
The Molarity of KOH is
Explanation:
The endpoint indicates the volume necessary to neutralize the moles of acid.
In other words, the point at which the moles of both solutions are the same.
we match these equations and find the concentration of KOH
