Attempt $2$

In a chemical reaction, exactly $2$mol of substance A react to produce exactly $3$mol of substance $B.$

$2$Alongrightarrow$3B$

How many molecules of substance B are produced when $29\mathrm{.}5g$ of substance A reacts? The molar mass of substance A is $25\mathrm{.}9\frac{g}{m}ol.$

Step $1$: Convert the mass of A to moles.

moles

iol

Step $2$: Convert the number of moles of A to the number of moles of B$.$

moles of B: mol

Step $3$: Convert the number of moles of B to molecules of B$.$