c×v
n (NaOH) = ------
1000
0.1 × 500
n (NaOH) = ----------------
1000
n (NaOH) = 0.05 moles
Mass= Mr(NaOH) × moles
Mass= (23+16+1) × 0.05
Mass=2.15 g (2.15 grams)
although Edie had thought about quitting in the past , now she felt that she would stay forever
(a) 841 lb/in; (b) 89.36 cm
(a) 1220 lb/1.45 in = 841 lb/in
(b) To quadruple a measurement is to <em>multiply it by 4</em>.
∴ 4 × 22.34 cm = 89.36 cm
Since we are basing the rate with respect to O3, therefore
the rate would simply be the concentration divided by the total reaction time.
That is:
rate of reaction = 0.05 M / 16 seconds
rate of reaction = 3.125 x 10^-3 M / second
or
<span>rate of reaction = 0.003125 M / second</span>
<h2>Answer:</h2>
The mass of the system will remain the same if there is no conversion of mass to energy in the reaction.
<h3>Explanation:</h3>
- If the system is closed, then according to the law of mass conservation the mass of the reaction system will remain the same.
- <u><em>Law of conservation of the mass: In simple words, it is described as the mass of a closed system can never be changed, it may transfer from one form to another or change into energy.</em></u>
- But if the reaction involves energy transfer like heat or light production, in this case, the mass can be changed.
