There are 0.5 moles of NaCl present in a 29.22g sample.
to find moles of a compound you would look at the periodic table to find the mass. in this case, the mass of NaCl is 58.44 g/mol. now, you divide the sample mass of 29.22g by 58.44 g/mol. the grams will cancel each other out and you’re left with 0.5 mol in that sample
hope this helps!
P = mv, where p is momentum, m is mass in kg and v is velocity in m/s
D. 18 x 10^23 is the total number of atoms in 1.0 mole of CO2
If I understood question correctly,
football 1.3 • 102=132.6
Answer is 132 students participate in football.
