The molecular formula of the compound is - C₁₁H₂₀O₂
formula mass is the sum of the products of the relative atomic masses of the elements by the number of atoms of the corresponding element
r.a.m -relative atomic mass
the elements making up the compound with their relative atomic masses are;
C - 12 r.a.m - 11 C atoms
H - 1 r.a.m - 20 H atoms
O - 16 r.a.m - 2 O atoms
the formula mass- (11 x r.a.m of C ) + (20 x r.a.m of H ) + ( 2 x r.a.m of O)
formula mass = (11 x 12) + (20 x 1) + (2 x 16)
= 132 + 20 + 32
= 184
formula mass of compound is 184
Answer:
a) 3.0076 E24 atoms
Explanation:
∴ mass Cl2 = 354.22 g
∴ molar mass Cl2 = 70.906 g/mol
⇒ mol Cl2 = (354.22 g)*(mol/70.906 g) = 4.9956 mol
⇒ atoms Cl2 = (4.9956 mol)*(6.022 E23 atoms/mol)
⇒ atoms Cl2 = 3.008 E24 atoms
Answer:
YIkES One thing u can do i ask your teacher about it or say that u need help with it the cant make fun of u because u need help with your work.
Br
First of all, As is a metalloid, not a nonmetal. Second of all, as the rows get higher on the periodic table, the elements are more reactive. As you move right on the periodic table, the elements become more reactive.
To convert from grams to moles, you must divide the given mass by the molecular weight. If this is so, then:
Water ≈ 18.02 grams/mol.
85.0 g/ 18.02 g/mol ≈ 4.72 moles
