Collect the molar masses of each element contained in LiOH.
- Lithium (Li) has a molar mass of 6.941 g/mol
- Oxygen (O) has a mass of 15.999 g/mol
- Hydrogen (H) has a mass of 1.008 g/mol
Together, LiOH has a molar mass of 23.948 g/mol.
Convert the given amount of LiOH from g to mol:
(67.03 g) * (1/23.948 mol/g) = 2.799 mol
Answer: $18.52
Step-by-step explanation: First you multiply the grocery store purchases by 3%, then you multiply the other purchases by 1.5%. Then you add together to get your total cash back
$326.79x.03=$9.80
$581.34x.015=$8.72
$9.80+$8.72=$18.52
The answer would be the first one
28 is 140% of 20
Hope this helps!