27*9=243 if one mole is equal to 27 grams times that by 9
Ma = 1.66 M
Va = 30.7 mL
Mb = 0.704 M
Vb = 16.7 mL
Using the law <span>of dilution :
</span>
Mf = Ma x Va + Mb x Vb / Va + Vb
Mf = 1.66 x 30.7 + 0.704 x 16.7 / 30.7 + 16.7
Mf = 50.962 + 11.7568 / 47.4
Mf = 62.7188 / 47.4
Mf = 1.323 M
hope this helps!
An orbital is the most probable location of an electron. This is because you can't pinpoint the exact location of an electron because as soon as you do it will have moved again, so orbitals are used to find the probability of where a certain electron is.