Lithium carbonate, li2co3, contains 18.8 % lithium and is used in the treatment of mental illnesses such as bipolar disorder. what mass of lithium is present in a 1.00−g dose of lithium carbonate?

Assuming that the 18.8% composition is based on mass, therefore the mass of Lithium would simply be the product of the fractional composition and the total dose. That is:

18.8 % = 0.188

mass Lithium = 0.188 * 1.00 g = 0.188 g

0.188 g

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.