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Johannie
Questions (14)
Find the angle ABC, if A = (4, –3, –1), B = (0, 0, 0) and C = (–2, –3, 5)
Could you lead me in the right direction I
1 answer
460 views
A 500.0-mL buffer solution is 0.100 M in HNO2 and 0.150 M in KNO2. Determine whether or not
each of the following additions would
3 answers
3,918 views
A KCl solution containing 42g of KCl per 100.0 g of water is cooled from 60 C to 0 C . What will happen during cooling?
2 answers
9,851 views
A KCl solution containing 42g of KCl per 100.0 g of water is cooled from 60 C to 0 C . What will happen during cooling?
0 answers
869 views
A KCl solution containing 42g of KCl per 100.0 g of water is cooled from 60 C to 0 C . What will happen during cooling?
2 answers
1,098 views
A solution containing 42 of per 100.0 of water is cooled from 60 to 0 . What will happen during cooling?
1 answer
464 views
Calculate the mass of nitrogen dissolved at room temperature in an 80L home aquarium. Assume total pressure of 1 atm and mole
1 answer
687 views
Calculate the mass of nitrogen dissolved at room temperature in an 80L home aquarium. Assume total pressure of 1 atm and mole
1 answer
752 views
If the hydroxide ion concentration in a lake is 10‐10 M what is the lake’s pH?
4 answers
604 views
If the hydroxide ion concentration in a lake is 10‐10 M what is the lake’s pH?
0 answers
423 views
What is the purpose in calculating formal charges?
What physical forces create the three dimensional structure of a molecule?
5 answers
937 views
Would the following structures be polar or nonpolar? (Not applicable if the structure is an ion. Pick "ionic" in that case).
SO2
8 answers
6,863 views
One reason carbon monoxide (CO) is toxic in that it bind to the blood protein hemoglobin more
strongly than oxygen does. The
3 answers
1,355 views
One reason carbon monoxide (CO) is toxic in that it bind to the blood protein hemoglobin more
strongly than oxygen does. The
1 answer
628 views
Answers (11)
Im still confused
The liquid in the stomach has a pH of approximately 2. What is the concentration of hydrogen ions in this liquid?
but when its hydrogen ions, do i use that second equation? ph+poh=14?
Formal charges are used as a bookkeeping to determine which resonance structure contribute the most to a molecules electron configuration. The resonance is sort of a measure of the stability. Is this correct?
for the first question, to be able to draw lewis structures correctly?
im just really confused on this topic, we havent gone over it in class yet and so i don't know much on it. for the first question i really don't know, but the second one im guessing that the opposite charges maybe?
so N20 is polar SO2 is polar and N3- is ionic ?
it tells me that it is incorrect..
SO2 polar N2O polar N3- non polar ?
SO2 polar N2O polar N3- non polar ?
so it would be 1/1953 = 5.12e-4 cm and then just convert that to nm?
