The best answer would be sedimentary rock because it forms from seiment and layers.
Molar mass methane ( CH₄) = 16.04 g/mol
number of moles:
mass CH₄ / molar mass
8.67 / 16.04 => 0.5405 moles
1 mole ------------------ 22.4 L ( at STP )
0.5405 moles --------- ??
0.5405 x 22.4 / 1 => 12.1072 L
hope this helps!
Answer:
9.0345 × 10¹⁸
Explanation:
Given:
Volume = 1.5 μL = 1.5 x 10⁻⁶ L
Molarity = 10 M
Now,
Number of moles = Molarity × volume
on substituting the values, we get
Number of moles = 10 × 1.5 x 10⁻⁶
or
Number of moles = 1.5 x 10⁻⁵
Also,
1 mole contains 6.023 × 10²³ molecules
therefore,
1.5 x 10⁻⁵ moles will contain = 6.023 x 10²³ × 1.5 × 10⁻⁵ = 9.0345 × 10¹⁸
Hence,
The number of C₆₀ molecules present are 9.0345 × 10¹⁸
A physical property is any property that is measurable whose value describes a state of a physical system.A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.Isotopes are variants of a particular chemical element which differ in neutron number, although all isotopes of a given element have the same number of protons in each atom.The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number (number of protons), electron configurations, and recurring chemical properties. A period is the name given to a horizontal row of the periodic table.a group is a column of elements in the periodic table of the chemical elements.
