Science is the knowledge and study of the structure and behaviour of the physical and natural world, whiles technology is more about the TOOLS used and applied to study the science. They are related because technology is beneficial in science, like in experiments or investigations.
Example:
Science is - structure of a leaf.
Technology is - microscope.
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Answer:
Density (ρ) = 5 kilogram/cubic meter
Explanation:
Steps:
ρ =
m
V
=
10 kilogram
2 cubic meter
= 5 kilogram/cubic meter
Answer: 10 ml of 200 mM is required and 30 ml of water is required.
Explanation:
According to the dilution law,
where,
= concentration of stock solution = 200mM
= volume of stock solution = ?
= concentration of resulting solution= 50mM
= volume of another acid solution= 40 ml
Thus 10 ml of 200 mM is required and (40-10) ml = 30 ml of water is to be added to make 40 ml of 50mM .
The 2 L of sucrose stock solution would contain similar
concentration with the 100 mL aliquot. Therefore the concentration of aliquot
is still 2 M.
The molar mass of sucrose is 342.3 g / mol. Therefore the
mass in a 100 mL (0.1 L) aliquot is:
mass = (2 mol / L) * 0.1 L * (342.3 g / mol)
<span>mass = 68.46 g</span>
Answer:
P = 0.444 atm
Explanation:
The reaction of decomposition of H₂S is:
H₂S(g) ⇄ H₂(g) + S(g)
<em>Initial</em> 0.245 0 0
<em>Equilibrium </em>0.245-x x x
The equilibrium constant (Kp) of the above reaction is the following:
(1)
Knowing that initally, only H₂S is present at P = 0.245, the Kp of equation (1) at equilibrium is:
Using the quadratic formula we get x₁ = 0.199 and x₂ = -1.058.
Taking only the possitive number we have that:
Therefore, the total pressure in the container at equilibrium is:
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