Calculate the molar mass for lithium carbonate, [latex]Li_{2}CO_{3}[/latex], used to treat bipolar disorder.

Question 7.8: Calculate the molar mass for lithium carbonate, Li2CO3, used...

General, Organic, and Biological Chemistry Structures of Life [1002561]
General, Organic, and Biological Chemistry: Structures of Life

Calculate the molar mass for lithium carbonate, $Li_{2}CO_{3}$ , used to treat bipolar disorder.

The blue check mark means that this solution has been answered and checked by an expert. This guarantees that the final answer is accurate.
Learn more on how we answer questions.

ANALYZE THE PROBLEM	Given	Need	Connect
ANALYZE THE PROBLEM	formula of $Li_{2}CO_{3}$	molar mass of $Li_{2}CO_{3}$	periodic table

STEP 1 Obtain the molar mass of each element.

\begin{array}{r c}\boxed{\frac{6.941  g  Li}{1  mole  Li } } & \boxed{\frac{12.01  g  C}{1  mole  C } } & \boxed{\frac{16.00  g  O }{1  mole  O } } \end{array}

STEP 2 Multiply each molar mass by the number of moles (subscript) in the formula.
Grams from 2 moles of Li:

2  \cancel{moles  Li} \times \boxed{\frac{6.941  g  Li}{1  \cancel{ mole   Li} } }=13.88  g  of  Li

Grams from 1 mole of C:

1  \cancel{mole  C} \times \boxed{\frac{12.01  g  C}{1  \cancel{ mole  C} } }=12.01  g  of  C

Grams from 3 moles of O:

3  \cancel{mole  O} \times \boxed{\frac{16.00  g  O}{1  \cancel{ mole  O} } }=48.00  g  of  O

STEP 3 Calculate the molar mass by adding the masses of the elements.

2 moles of Li = 13.88 g of Li
1 mole of C = 12.01 g of C
3 moles of O = $\underline{48.00 g of O}$
Molar mass of $Li_{2}CO_{3}$ = 73.89 g

How much heat, in kilojoules, is released when nitrogen and hydrogen react to form 50.0 g of ammonia? N2(g) + 3H2(g) → 2NH3(g) ΔH = -92.2 kJ ...

Verified Answer:

STEP 1 State the given and needed quantities (mo...

Question: 7.16

In the reaction of 1 mole of solid carbon with oxygen gas, the energy of the carbon dioxide gas produced is 393 kJ lower than the energy of the reactants. a. Is the reaction exothermic or endothermic? b. Write the balanced chemical equation for the reaction, including the heat of reaction. c. Is ...

Verified Answer:

a. When the products have a lower energy than the...

Question: 7.15

On a space shuttle, LiOH is used to absorb exhaled CO2 from breathing air to form LiHCO3. LiOH(s) + CO2(g) → LiHCO3(s) What is the percent yield of LiHCO3 for the reaction if 50.0 g of LiOH gives 72.8 g of LiHCO3? ...

Verified Answer:

STEP 1 State the given and needed quantities (mo...

Question: 7.14

When silicon dioxide (sand) and carbon are heated, the products are silicon carbide, SiC, and carbon monoxide. Silicon carbide is a ceramic material that tolerates extreme temperatures and is used as an abrasive and in the brake discs of cars. How many grams of CO are formed from 70.0 g of SiO2 and ...

Verified Answer:

STEP 1 State the given and needed quantities (mo...

Question: 7.13

Carbon monoxide and hydrogen are used to produce methanol (CH4O). The balanced chemical reaction is CO(g) + 2H2(g) → CH4O(g) If 3.00 moles of CO and 5.00 moles of H2 are the initial reactants, what is the limiting reactant, and how many moles of methanol can be produced? ...

Verified Answer:

STEP 1 State the given and needed quantities (mo...

Question: 7.12