Examlex
Calculate the atomic mass of element "X" if it has two naturally occurring isotopes with the following masses and natural abundances:
X-45 44.8776 u 32.88%
X-47 46.9443 u 67.12%
Cyclohexane
A saturated hydrocarbon with the formula C6H12, featuring a ring structure of six carbon atoms.
Axial
"Axial" refers to positions or orientations along the axis of a molecule, usually in cyclic compounds, opposed to equatorial positions which are off the axis.
Equatorial
Referring to the position of substituents in a cyclohexane ring, where they are oriented parallel to the equator of the molecule, leading to less steric strain.
DEPT-135
A specialized NMR spectroscopy technique used to differentiate between CH, CH2, and CH3 groups in molecules.
Q7: Identify the formula for barium hydroxide octahydrate.<br>A)
Q8: Round the following number to four significant
Q38: How many cubic metres (m<sup>3</sup>) are in
Q87: Which of the following is a precipitation
Q90: Gallium has an atomic mass of 69.723
Q128: Identify the compound with (an) ionic bond(s).<br>A)
Q147: What is the atomic mass for tin?<br>A)
Q173: When forming the nitride ion, nitrogen, N,
Q176: Determine the reducing agent in the following
Q188: When 280. mL of 1.50 × 10<sup>-4