Answer:
0.0957 M
Explanation:
Equivalence appears to occur upon addition of 20 mls of 0.0957 M HCl.
0.02 L x 0.0957 mole/L = 0.001914 moles HCl added
CH3NH3 + HCl ==> CH3NH4^+ Cl^-
Molarity of CH3NH3 initially present = 0.0957 M
pH < 7 because the reaction is between a strong acid (HCl) and a weak base (methylamine)
Season it well! (: Even salt can make a ton of a difference, honestly! Just try not to add too much of anything if it's meant to be healthy and you're just trying to lose weight!
Good luck, rockstar!
Answer: The percent yield of the reaction is 83.5 %
Explanation:
The given balanced equation is
is the limiting reagent as it limits the formation of product and 
is the excess reagent.
According to stoichiometry :
60.08 g of produce = 40.11 of 
Thus 50.0 of will produce=
of
Experimental yield of SiC = 27.9 g
Percent yield = 
Thus percent yield of the reaction is 83.5 %
Given:
114.32g of water
14.85oC is raised
to 18.00oC
Required:
Change in heat
energy
Solution:
This can be solved
through the equation H = mCpT
where H is the heat, m is the mass, Cp is the specific heat and T is the change in temperature.
The specific heat
of the water is 4.18 J/g-K
Plugging in the
values into the equation
H = mCpT
H = (114.32g) (4.18
J/g °C) (18 – 14.85)
H = 1,505.3 J
