The answer is A for sure hit thanks !
Answer is: oil <span>has the highest viscosity.
</span>The viscosity<span> of a fluid is
a measure of its resistance to
gradual deformation by tensile stress and shear stress.
</span>The dynamic<span> viscosity of </span>water is 0,890 cP (centipoise) at about 25 °C.
The dynamic viscosity of acetone is 0,306 cP at about 25 °C.
The dynamic viscosity of olive oil for example is 81 cP at about 25 °C.
Explanation:
These elements are rare because:
<u>Helium fuses into the carbon by the combination of three helium nuclei (Z = 2) and one carbon nucleus (Z = 6), therefore bypassing elements with Z= 3, 4 and 5 which are lithium, beryllium, and boron respectively. Therefore, the fusion processes in cores of the stars do not form these three elements. </u>
Volume required for neutralization V will be:
V * 0.2125 M HCl = 25 mL * 0.17 M
V = 20 ml
First part:
When 10 mL is added we can apply Henderson equation to get the result, so:
The pH will be of basic buffer
pOH = pKb + log(salt/base)
or pOH = 4.19 + log (0.2125*10 / 25*0.17 - 10*0.2125 )
pOH = 4.19 and pH = 14 - 4.19 = 9.81
Second part:
When 20 ml is added, there is only salt formed
The pH will be salt of strong acid and weak base
So pH = 7 - 0.5 pKb - 0.5 log C
where C is the concentration of the salt formed so:
pH = 7 - (0.5*4.19) - (0.5 log (25*0.17) / (25+20))
= 5.42
Third part:
When 30 ml of the acid has been added,
The pH will be of the remaining strong acid
pH = - log (0.2125*10 / 25 + 30 )
= 1.326
Answer:
3000 K (2727°C)
Explanation:
Ideal gas law:
PV = nRT
Rearranging:
P/T = nR/V
Since n, R, and V are constant:
P₁ / T₁ = P₂ / T₂
Given:
P₁ = 760 mmHg = 1 atm
T₁ = 27°C = 300 K
P₂ = 10 atm
(1 atm) / (300 K) = (10 atm) / T₂
T₂ = 3000 K
The flask will explode when heated to 3000 K (2727°C).