Answer:
The concentration resulting solution = 0.350 M
Explanation:
In case of dilution , the following formula can be used -
M₁V₁ = M₂V₂
where ,
M₁ = initial concentration ,
V₁ = initial volume ,
M₂ = final concentration , i.e. , concentration after dilution ,
V₂ = final volume .
from , the question ,
M₁ = 0.85 M
V₁ = 4.12 L
M₂ = ?
V₂ = 10.0 L
Using the above formula , the molarity of the final solution after dilution , can be calculated as ,
M₁V₁ = M₂V₂
0.85 M * 4.12 L = M₂ * 10.0 L
M₂ = 0.85 M * 4.12 L / 10.0 L
M₂ = 0.350 M
It depends on where it is locacated (close or far away from the equator)
Answer:
C2H5
Explanation:
you first find the number of moles of both substances then divide by the lowest number in this case carbon was 1 and hydrogen was 2,515... then you multiply by a whole number which was 2 then it was now C2H5
The initial state of the system is comprised of
(a) A metal sample
m₁ = 43.5 g, mass
T₁ = 100°C, temperature
c₁ (unknown) specific heat, J/(g-C)
(b) Water
m₂ = 39.9 g, mass
T₂ = 25.1°C, temperature
c₂ = 4.184 J/(g-C), specific heat
The final state of the system is
M = m₁ + m₂, total mass
T = 33.5°C, equilibrium temperature
Work in SI units. Note that changes in °C are equal to changes in °K.
Equate change in total thermal energy to zero because the energy is conserved.
m₁c₁(T-T₁) + m₂c₂(T-T₂) = 0
(43.5)*(c₁)(33.5 - 100) + (39.9)*(4.184)*(33.5 - 25.1) = 0
-2892.8c₁ + 1402.3 = 0
c₁ = 1402.3/2892.8
= 0.4848 J/(g-C)
Answer: The specific heat capacity of the metal is 0.485 J/(g-°C)
