Homework Help: Chemistry

Posted by Hannah on Thursday, February 24, 2011 at 10:10pm.

Balance this equation.

NaHCO3(s) + heat ----> Na2CO3(s) + H2O(l) + CO2(g).

i balanced it & got: 2NaHCO3(s)+ heat -->Na2CO3(s)+ H2O(g)+CO2(g) is this right ?
Determine how many moles of CO2(g) is
produced when 7mols of NaHCO3 are consumed. how do i do this ?

Chemistry - DrBob222, Thursday, February 24, 2011 at 10:22pm
The equation looks balanced to me. Your question. Use the coefficients to make conversions from moles of one material to moles of another material. For example, 2 moles NaHCO2 will produce 1 mole CO2, 1 mole H2O, and 1 mole Na2CO3. How many mols NaHCO3 will it take to produce 10 moles CO2. 10 moles CO2 x (2 moles NaHCO3/1 mole CO2) = 20 moles NaHCO3. Note how the unit CO2 cancels and leaves the unit NaHCO3 which you want to keep.
Chemistry - Hannah, Thursday, February 24, 2011 at 10:27pm
would the answer be 14 moles of CO2?
Chemistry - DrBob222, Thursday, February 24, 2011 at 10:43pm
14 is correct.
Chemistry - Anonymous, Friday, February 24, 2012 at 8:13pm
balance equation
----Cl2 (g)+----KBr (aq)-----Br2 (l) +---KCl (aq)
Chemistry - Anonymous, Friday, February 24, 2012 at 8:19pm
----Cl2 (g)+----HBr (aq)-----Br2 (1)+-----KCl (aq)

Answer this Question

Related Questions

Chemistry - 2NaHCO3(s)+ heat -->Na2CO3(s)+ H2O(g)+CO2(g) is this right ? ...
Chemistry - 0.7g of an unknown mixture of NaHCO3 and Na2CO3 is mixed with 3mL of...
Chemistry - How do write a skeleton equation for this reaction? When heated, ...
chemistry - You have 1.600g mixture of NaHCO3 and Na2CO3. You find that 11.60 ml...
chem - Balance the following equation by entering the correct coefficients. ...
Science/Chemistry - Write a Balanced equation for the chemcial reaction ...
chemistry - Sodium carbonate reacts with nitric acid according to the following ...
science (chem) - what is the chemical eqzn of Na2CO3 + HClO4? Na2CO3 + HClO4 ==&...
chemistry - Sodium carbonate, Na2CO3(s), can be prepared by heating sodium ...
chemistry - How do you translate a chemical equation into a sentence? Example: ...

For Further Reading

First Name:
School Subject:
Answer: