Answer:
The endpoint volume is 50.52 ± 0.14 mL
Explanation:
In a titration always is necessary to subtract the blank volume to the titrant volume to obtain the real volume of the titrant. Thus in this case, the total endpoint volume is the sum of the initial volume delivered and the second volume delivered, minus the blank volume:
V = (49.16±0.06 mL) + (1.69±0.04 mL) - (0.33±0.04 mL)
V = (49.16 + 1.69 - 0.33) ± (0.06+0.04+0.04) mL
V = 50.52 ± 0.14 mL
It is necessary to consider the sum of the errors too.
Answer:
The Law of Definite Proportions ensures that chemical compounds are always created using the same proportions, regardless of the amount of the compound which is being made
Answer:
If the chef is in a hurry we would assume he would want the pan to heat up so copper
Explanation:
Answer:
Nitrification is a biological process by which ammonia is oxidized to nitrites (
) and then to nitrates (
) by action of specialized bacteria in nature (such as <em>nitrosomonas</em> and <em>nitrobacter</em>).
Explanation:
This two-step process utilizes molecular atmospheric oxygen and ammonia and ammonium components of soil and nature.
<em>(a.) Ammonia and ammonium compounds to nitrite</em>
→ 
→ 
<em>(b.) Nitrite to nitrate</em>
→ 
<em>(c.) The reverse process involves reduction of nitrates to molecular nitrogen, called denitrification (with succinic acid in the equation below).</em>
→ 
(
and 
is an intermediate product in this process.)
Answer:
The inner core
Explanation:
Well, Jaron's tunneling machine would find it quite impossible to even penetrate the crust.
Our dynamic earth is arranged in concentric layers with each shell at varrying physical state and chemical properties.
As we go down the earth, the temperature and pressure increases significantly. The innermost layer of the erth is the inner core and it is expected that the temperature and pressure here should be the greatest. The pressure in the inner core is so great that the materials that were supposed to be in molten form exists as solid in there.
