Calculate the ph and poh of a 0.0032 M solution of nitric acid NHO3
Answers
Answer:
HNO3 ->NO3²- + H+
Concentration of H+ ions= 0.0032M
pH = - log[ H+]
= - log (0.0032)
= 2.49
pH + pOH = 14
pOH = 14 - pH
= 14 - 2.49
= 11.51
pH = 2.49 and pOH = 11.51
Hope this helps.
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What sequence of enzymes allows for the synthesis of glycogen from glucose-6-phosphate?a. UDP-glucose pyrophosphorylase, phosphoglucomutase, glycogen synthase, amylo-(1,4α1,6)-transglycosylaseb. phosphoglucomutase, UDP-glucose pyrophosphorylase, amylo-(1,4α1,6)-transglycosylase, glycogen phosphorylasec. phosphoglucomutase, amylo-(1,4α1,6)-transglycosylase, UDP-glucose pyrophosphorylase, glycogen synthased. UDP-glucose pyrophosphorylase, phosphoglucomutase, amylo-(1,4α1,6)-transglycosylase, glycogen synthasee. phosphoglucomutase, UDP-glucose pyrophosphorylase, glycogen synthase, amylo-(1,4α1,6)-transglycosylase
What are the two parts of an atom?
What mass of oxygen is required to completely react with 2 moles of ch4
Dtermine the volume in liters occupied by 0.030 miles of a gas at stp
Answers
B- active volcano
C- extinct volcano
D-lava filled volcano
Answers
Hope this helps :D
Answer:
B active volcano
Explanation:
b. An atom must be identical in size.
c. An atom must be similar in size.
d. The substituting atom must be from the same period. E) The substituting atom must be from the same group.
Answers
The correct answer is options c and e.
A solid solution is basically a multi-component framework that comprises a mixture of two or more elements exhibiting a similar crystal lattice. The examples of solid solutions are alloys.
The requirements for one kind of atom to substitute for another in a solid solution are:
1. The size of the atom must be similar.
2. The substituting atom must be from a similar group.
Answer:
An atom must be similar in size.
The substituting atom must be from the same group.
Explanation:
A solid solution is a solid mixture containing a minor component uniformly distributed within the crystal lattice of another component called the major component. Metal alloys are typical examples of a solid solution.
Note that only atoms of similar size can substitute each other in a solid solution. Usually atoms of elements in the same group have atomic sizes that vary within narrow ranges. Hence atoms of elements in the same group have similar atomic sizes and can substitute each other in a solid solution.
Answers
Answer:
calculate grams and use mole ratio lol
Explanation:
Answer:
Explanation:
23
B. H3O+ ions as the only positive ions in solution
C. OH– ions as the only negative ions in solution
D. H– ions as the only negative ions in solution
Answers
Answer : The correct option is, (C) ions as the only negative ions in solution
Explanation :
According to the Arrhenius concept, an acid is a substance that ionizes in the water to give hydronium ion or hydrogen ion and a bases is a substance that ionizes in the water to give hydroxide ion
.
A sample of is considered to be an Arrhenius base because when it dissolves in the water to yield
ions as the only negative ions in solution.
Hence, the correct option is, (C)
Answers
The CCl₄ molecule has a tetrahedral geometry. It is a symmetrical molecule. The polarised bond thus cancels out each other due to the geometry of the molecule and that is why CCl₄is nonpolar.
Chlorine has a higher electronegativity than phosphorous. As a result, the chlorine atom has a partial negative charge relative to phosphorous. Since all three chlorine atoms pull electrons from the phosphate atom, the molecule is a polar molecule.
The reason why CCl₄is not soluble in water is because it is not soluble in polar solvents. Both PCl₃ and water are polar molecules. This is due to their shape and the electronegativity difference between the H and O molecules in water and the P and Cl molecules in PCl₃. Therefore, PCl₃in water is soluble.
To learn more about the tetrahedral geometry, refer to the link:
#SPJ6
In CCl4, the carbon molecule forms four bonds; one for each chlorine atom. Each bond contains 2 electrons, so it is satisfied.
In PCl3, Phosphorous forms only 3 bonds with chlorine, which means in order to have 8 valence electrons, it also has a lone pair of electrons, not bonded with chlorine.
Now, in CCl4, picture the shape of the molecule like a plus sign, with the carbon in the middle and the chlorine at the four ends. It is symmetrical, and therefore is nonpolar.
In PCl3, the lone pair electrons push, so to speak, the 3 chlorine atoms away, making a T-shaped molecule. Since the chlorine is more electronegative than carbon, the molecule is unbalenced, making it polar.