Please answer i’m in a test rn!! Convert 8.1X1025 molecules of water to moles O 1.5X10^27 mol
O 4.5X10^24 mol
O 4.9X10^49 mol
O 1.3x10^2 mol

D) 1.3×10^2

Explanation:

n = N/Na

n =8.1×10^25÷6.02×10^23

n=1.3×10^2 mol

THANK YOU

sry but any answer choices

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.