Answer:
volume = 0.288 L
Explanation:
To find the volume, you need to (1) convert grams LiBr to moles LiBr (via molar mass) and then (2) calculate volume (via molarity equation). It is important to arrange the ratios in a way tat allows for the cancellation of units (desired units in the numerator).
<u>(Step 1)</u>
Molar Mass (LiBr): 6.9410 g/mol + 79.904 g/mol
Molar Mass (LiBr): 86.845 g/mol
100 grams LiBr 1 mole
----------------------- x ------------------ = 1.15 moles LiBr
86.845 g
<u>(Step 2)</u>
Molarity (M) = moles / volume (L)
4 M = 1.15 moles / volume
(4 M) x volume = 1.15 moles
volume = 1.15 moles / 4 M
volume = 0.288 L
Answer:
The molecular formula of the compound is
.
Explanation:
Let the molecular formula of the compound is
.in
Molar mass of compound = 180 g/mol
Number of carbon atom = x
Number of hydrogen atom = y
Number of oxygen atom = z
Atomic mass of carbon = 12 g/mol
Atomic mass of hydrogen = 1 g/mol
Atomic mass of oxygen = 16 g/mol
Percentage of element in compound :

Carbon :

x = 46
Hydrogen :

y = 12
Oxygen:

z = 5.99 ≈ 6
The molecular formula of the compound is
.
Answer:
Heat causes the molecules to move faster (heat energy is converted to kinetic energy), which means that the volume of a solid or a liquid. ... The particles in the air do not have more kinetic energy than particles in the mercury, because they are the same.
Explanation:
I hope this help you!
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