Explanation:
The given reaction equation is as follows.
The greatest molarity will be calculated as follows
=
= 0.00070584 mol/ml
or, = 0.70584 mol/L (as 1 l = 1000 ml)
The smallest molarity will be calculated as follows.
= 0.00070115 mol/ml
= 0.70115 mol/l
Now, we will find the average as follows.
= 0.703495
Now, half of the difference will be calculated as follows.
= 0.002
therefore, we can conclude that the resulting answer is 0.703 ± 0.002 mol/L .
The third beaker doesnt dissolve as fast as one and two
as it has nothing changed to it
when you stir it gives the sugar more kinetic energy to dissolve
when you heat up the solution it also gives the sugar more kinetic energy
hope that helps
Molar ratio is the quantity which will correctly convert between two different substances.
Answer: Option B
<u>Explanation:
</u>
Molar ratio is used to determine the number of moles of reactants required to convert to desired number of moles of the products and vice versa. As moles are the coefficient written in any chemical equation. The ratio of the number of moles of the reactants to the number of moles of the products will help to determine the molar ratio.
This molar ratio is used as the conversion factor to determine number of moles required in the reactant side for the reactants to form a desired product of desired moles. We can also determine the number of moles utilized from the reactants from the moles obtained in the products using this molar ratio conversion factor.
Answer:
46.85kJ
Explanation:
The specific latent heat of vaporization of water is =2.3 x 10⁶ J kg-1.
The specific heat capacity of water = 4.2×10³J/kgK
The latent heat of fusion of water= 3.36×10⁵ J/kg
The specific heat capacity of ice=2.108×10³ J/kgK
The heat of lost due to cooling of ice is calculated as follows by adding the heat lost during condensation of water vapor to the heat lost during cooling the water to freezing point plus the heat lost during freezing plus the heat lost during cooling the ice to -32.0°C
=MLv+MCΔT(water)+MLf+MCΔT(ice) where Lv=latent heat of vaporization of water , and Lf is the latent heat of fusion ice.
=(0.015kg×2.3 x 10⁶ J/kg)+(0.015kg×4.2×10³J/kgK×100K)+(0.015kg×3.36×10⁵ J/kg)+(0.015kg× 2.108×10³ J/kgK)×32K
=34500J+6300J+5040J+1011.84J
=46851.84J
=46.85kJ