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What is the molarity of 930 mL of LiCl solution that contains 139.9 g of LiCI?
A. 3.5 mol/L
B. 150 mol/L
C. 3.3 mol/L
D. 3.5 x 10-3 mol/L
Answers
Explanation:
To determine the molarity, we have to find the number of moles in the volume given, and then extrapolate to find the number of moles that would be in 1 L.
Determine the moles in the given volume
moles of LiCl = mass ÷ molar mass
= 139.9 g ÷ 42.39 g/mol
= 3.30 mol
Find the moles in 1 L
Since 930 mL of LiCl = 3.30 mol
then 1000 mL of LiCl = (3.30 mol × 1000 mL/L) ÷ 930 mL
= 3.55 mol/L
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A. it demonstrates that a water molecule consists of two hydrogen atoms and one oxygen atom.
B. it demonstrates that water consists of atoms
C. it demonstrates that water is a compound
D. it demonstrates that water is an element
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Answer:
A
Explanation:
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Only one of the following is a characteristic of a heterogeneous mixture
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Explain how copper conducts electricity?
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Answer:
Copper is a metal made up of copper atoms closely packed together. As a result, the electrons can move freely through the metal. For this reason, they are known as free electrons. They are also known as conduction electrons because they help copper be a good conductor of heat and electricity.
Explanation:
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Answer:
The boiling point wouldn´t be effected. The amount of time it would take to get it to that point would increase
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The atoms of which elements tend to gain electrons? Which tend to lose electrons?
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A. Chloride ions (CI)
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before making a covalent bond, where do the atom's electrons spend most of their time?
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Answer:
Before bonding, the atom's electrons spend most of their time around the nuclei of each atom. Once bonded, the electrons spend most of their time between the two nuclei
Use metric and U.S. conversion factors to solve the problem.
Question - If a student is 175 cm tall, how tall is the student in meters?
Answers
Explanation:
100cm = 1m
1cm=1/100 m
175cm = 175/100 m = 1.75m.
hope this helps you.
If a student is 175 cm tall, then according to the metric system the same student is 1.75 m tall.
What is a Metric system?A metric system may be defined as a type of system that significantly weighs and measures the mass and distance respectively in which the meter is the unit of length and the kilogram is the unit of weight.
A metric system is a standard system of measurement which utilizes the meter, liter, and gram as base units of length for distance, capacity for volume, weight for mass, etc.
According to the question, the height of a student in cm = 175 cm.
Then, from the general conversion rule,
1 meter = 100 cm.
1 cm = 1/100 meter.
175 cm. = 175/100 = 1.75 meters.
Therefore, if a student is 175 cm tall, then according to the metric system the same student is 1.75 m tall.
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Answers
Answer:
B) Oxygen
Explanation:
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Any species that contain negative charge over it called anion. Out of sodium, oxygen, argon and calcium, oxygen is the only element that can form anion. So option B is correct option.
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Answer:
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Answer:
This is false
Explanation:
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Answer:
True
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true or false?
Brainiest plz and hope this answer helped let me know if you need any more help I am glad to help!
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In the formation of NH₃, -22 kcal are released when 6.0 moles of H₂ react.
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Answer:
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Answers
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