Answer:
The answer to your question is 0.13 M
Explanation:
Data
[HNO₃] = ?
moles of HNO₃ = 9.8 x 10⁻²
volume = 705 ml
Process
1.- Convert volume to milliliters
1000 ml ------------------ 1 L
705 ml ------------------ x
x = (705 x 1) / 1000
x = 705 / 1000
x = 0.75 L
2.- Calculate the molarity
Molarity = moles / volume
Molarity = 9.8 x 10⁻² / 0.75
Molarity = 0.13
Answer:
Draw the skeletal structure for: (E)-hept-5-en-2-one
Explanation:
The root word hept indicates that the given compound has seven carons in its longest chain.
-en- primary suffix indicates that the compound has one double bond in it.
2-one indicates that the compound has -C=O bond in the second carbon.
The prefix (E) indicates that the highest priority groups are on the opposite direction of the double bond.
The structure of the given molecule is:
A semiconductor is a substance, usually a solid chemical element or compound, that can conduct electricity under some conditions but not others, making it a good medium for the control of electrical current. Silicon is a very common element -- for example, it is the main element in sand and quartz.
Answer : The correct option is, (C)
Explanation :
Redox reaction occurs when the electrons are lost by an atom of one reactant and gained by an atom of another reactant. There are two process involved in the redox reaction.
Oxidation : It is a process in which the element lose an electron during a chemical reaction. An element that is oxidized in a reaction has a increased in it oxidation number.
Reduction : It is a process in which the element gain an electron during a chemical reaction. An element that is reduced in a reaction has a decreased in it oxidation number.
From this we conclude that
The option A and B are incorrect as per definition of the oxidation.
The option D is also incorrect because in this the oxidation number of fluorine decreases from (0) to (-2). So, this is a reduction process.
The option C is correct because in this the oxidation number of aluminium increases from (0) to (+3). So, this is a oxidation process.
Hence, the correct option is, (C).
