Answer:
The correct answer is B.2.52 mol
Explanation:
The molarity of a solution (M) expresses the number of moles of solute there is in 1 liter of solution. If we have the molarity (M) and the volume in liters (L), we simply multiply M x V to obtain the moles, as follows:
M = 2.21 = 2.21 moles/L
V = 1.14 L
M x V = 2.21 moles/L x 1.14 L = 2.5194 moles ≅ 2.52 moles
The molar ratio between glucose and oxygen is 1:6. Therefore, we can see that if 6 moles of oxygen are consumed, ONE mole of glucose will be consumed
Answer:
an Atom
Explanation:
A representative particle is the smallest unit of a substance that can be broken down without altering the composition. Atoms are the smallest particle that can be split. Substances that contain only one kind of atom are called elements.
Answer:
They are inversely related.
Explanation:
- Molarity is the no. of moles of solute per 1.0 L of the solution.
<em>M = (mass/molar mass)solute (1000/V) </em>
M is the molarity.
V is the volume of the solution.
<em>M ∝ 1/V.</em>
<em>∴ They are inversely related.
</em>
To calculate the atomic mass of an element, the atomic masses of their isotopes must be considered. Their abundances must also be taken into account. This is the formula used for the calculation:
avg. atomic mass= ∑ <span>(isotope × abundance).
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