<span>Answer
is: mass of burned butane is 11.6 g.</span>
Chemical reaction: 2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O.
m(butane)
= 50,0 g.
<span>
V(CO</span>₂) = 17,9 L.<span>
n(CO</span>₂) = V(CO₂) ÷
Vm.<span>
n(CO</span>₂) = 17,9 L ÷ 22,4 L/mol.<span>
n(CO</span>₂) = 0,8 mol.<span>
From chemical reaction n(CO</span>₂) :
n(C₄H₁₀) = 8 : 2.<span>
n(C</span>₄H₁₀) =
0,8 mol ÷ 4.<span>
n(C</span>₄H₁₀) =
0,2 mol.<span>
m(C</span>₄H₁₀) =
n(C₄H₁₀) · M(C₄H₁₀).<span>
m(C</span>₄H₁₀) =
0,2 mol · 58 g/mol.<span>
m(C</span>₄H₁₀) =
11,6 g.
To find the IUPAC name for compounds, you must memorize prefixes and suffixes and other terms in determining or naming a compound. The IUPAC name for compound ZnO is Oxozinc or Zinc Oxide. I hope this helps you on your assignment.
Personally the first thing i do, is expand the number
.0000001004
4 sig figs.
<span>HCl(aq)+CH3NO2(aq)⇄CH3NH3+(aq)+CL-(aq)
Given that the concentrations of the HCl and methyamine are equal, so at the equivalence point the volume is doubled. The resulting concentration of CH3NH3+ is 0.095M
CH3NH3+(aq)⇄H+(aq)+CH3NH2(aq)
I 0.095 0 0
C -x +x +x
E 0.095-x x x
Ka=x^2/0.095-x
Ka=1.0x10^-14/5.0x10^-4
=2.0x10^-11
x^2/0.095-x=2.0x10^-11
x=1.38x10^-6
pH=-log(1.38x10^-6)
=5.9</span>
Answer:
I'm pretty sure the answer would be B
Explanation:
A few months ago I had an obsession with this volcano book but it sounds the most accurate I mean everything else on there would cause stuff but earthquakes cause so much damage to the earth.
