Answer: The molarity of the solution is 2.00 M
Explanation:
Molarity is defined as the number of moles of solute dissolved per liter of the solution.
where,
n = moles of solute
= volume of solution in L = 1.00 L
moles of solute =
Thus the molarity of the solution is 2.00 M
Answer:
1. Isotope 2 occurs most commonly
2. 39.02amu
Explanation:
1. Isotope 2 has a relative abundance of 78.68% i.e. 78.68 out of 100, hence, it is the isotope that occurs most commonly.
2. Isotope 1 = 9.67%, mass no: 38
Isotope 2 = 78.68%, mass no: 39
Isotope 3 = 11.34%, mass no: 40
Isotope 4 = 0.31%, mass no: 41
To find the average atomic mass of element X, we multiply each isotopes' relative abundance by its mass no and find the sum as follows:
We convert each percentage to decimal abundance:
Isotope 1 = 9.67% = 0.0967
Isotope 2 = 78.68% = 0.7868
Isotope 3 = 11.34% = 0.1134
Isotope 4 = 0.31% = 0.0031
(0.0967 × 38) + (0.7868 × 39) + (0.1134 × 40) + (0.0031 × 41)
3.6746 + 30.6852 + 4.536 + 0.1271
Average atomic mass = 39.02amu
A monomer is made up of a nitrogenous base, a five-carbon sugar, and a phosphate group bonded together. Hence, option A is correct.
<h3>What is a lipid?</h3>
A lipid is any of various organic compounds that are insoluble in water.
The smallest units of DNA are called nucleotides. These are organic molecules that serve as building blocks of DNA and RNA. They are monomers or subunits of nucleic acids like RNA and DNA. It is made up of a nitrogenous base, deoxyribose (five-carbon sugar), and at least one phosphate group.
They serve an important role in the metabolism of cells because they carry packets of energy in the form of nucleoside triphosphates (e.g. ATP, GTP, CTP, and UTP). They also play an important factor in cell signalling through enzymatic reactions and productions.
Hence, A monomer is made up of a nitrogenous base, a five-carbon sugar, and a phosphate group bonded together.
Learn more about lipids here:
brainly.com/question/1024207
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Answer:
Incomplete combustion of fuels produces a very poisonous gas called carbon monoxide:Excessive inhaling of carbon dioxide gas can kill a person.
I don't know if this is correct, your question did not have much context.