Answer:
The formula mass of Na2S04 is 142.04 g/mol
Explanation:
Half life = 129s
Initial Concentration = 0.527M
Rate constant = ?
Order of reaction = ?
The half-life equation of a first-order reaction does not include a reactant concentration term. A half-life is independent of concentration and remains constant throughout the duration of the reaction.
Order of reaction = First Order
t1/2 = 0.693 / k; where k = rate constant
129 = 0.693 / k
k = 0.693 / 129 = 0.00537s-1
Answer:
<u>The direction of dipole moment is C→Cl and electronegativity difference = 0.5</u>
Explanation:
The dipole moment is formed when there is a separation of charges in a chemical bond. The electrons of the bond tend to be more localized near the more electronegative atom.
The electronegativity of chlorine atom = 3.0 and electronegativity of carbon atom = 2.5
Therefore, chlorine is more electronegative than carbon. So, the electrons tend to be localized more near the electronegative chlorine atom. <u>Therefore, the direction of dipole moment is C→Cl and electronegativity difference is equal to 0.5.</u>
Answer:
V = 172.28 mL
Explanation:
density is mass divided by volume
p = density
m = mass
V = volume
p = m/v
V = m/p
V = 392.8/2.28
V = 172.28 mL
Shrivel/shrink and become flaccid because the water inside of the potato leaves the potato and joins the salt water due to the lower concentration in the salt water