You're starting with
(12.0 mL) (0.550 M) = (0.0120 L) (0.550 M) = 0.00660 mol
of FeCl₃.
For every mole of FeCl₃ in the balanced reaction, you need 3 moles of NH₄OH, so you need a minimum 0.0198 mol NH₄OH per mole FeCl₃.
Then the requisite volume of NH₄OH solution needed is <em>V</em> such that
(0.0198 mol) / <em>V</em> = 0.200 M
Solve for <em>V</em> to get
<em>V</em> = (0.0198 mol) / (0.200 M) = 0.0990 L = 99 mL
Answer:
Smoke hood. Garrett Morgan invented a safety hood smoke protection device after seeing firefighters struggling from the smoke they encountered in the line of duty. ... Disguised as Big Chief Mason, he would enter the tent full of black smoke, and would remain there for 20 minutes before emerging unharmed.
Answer:
No, it's not an exponential increase.
Explanation:
Given the following data;
Monday = 8 flu cases.
Tuesday = 12 flu cases.
Wednesday = 24 flu cases.
Thursday = 30 flu cases.
An exponential increase has a constant ratio of proportion such as 2, 4, 16, 256, etc.
To determine if the increase is exponential, we would find the ratio of each successive reports
Tuesday : Monday = 12/8 = 1.5
Wednesday : Tuesday = 24/12 = 2
Thursday : Wednesday = 30/24 = 1.25
From the above calculations, we can deduce that the ratio of increase isn't constant. Therefore, the newspaper's claim of an exponential increase is incorrect and not accurate.
Answer:
what's the question
officer feel about himself ???
it's an incomplete questions
