Q54E - Chemistry (OpenStax)

Question

Question : Write the formulas of the following compounds: 

(a) lithium carbonate 

(b) sodium perchlorate 

(c) barium hydroxide 

(d) ammonium carbonate 

(e) sulfuric acid 

(f) calcium acetate 

(g) magnesium phosphate 

(h) sodium sulfite

Step-by-Step Solution

Answer

1. \(L{i_2}C{O_3}\)
2. \(NaCl{O_4}\)
3. \(Ba{\left( {OH} \right)_2}\)
4. \({\left( {N{H_4}} \right)_2}C{O_3}\)
5. \({H_2}S{O_4}\)
6. \(Ca{\left( {C{H_3}COO} \right)_2}\)
7. \(M{g_3}{\left( {P{O_4}} \right)_2}\)
8. \(N{a_2}S{O_3}\)

Step 1. Writing individual atoms/molecules with their charge

\(L{i^ + }\)   \(CO_3^{2 - }\)   \(N{a^ + }\)    \(ClO_4^ - \)   \(B{a^{2 + }}\)   \(O{H^ - }\)    \(NH_4^ + \)   \({H^ + }\)   \(SO_4^{2 - }\)   \(C{a^{2 + }}\)   \(C{H_3}CO{O^ - }\)   \(M{g^{2 + }}\)   \(PO_4^{3 - }\)   \(SO_3^{2 - }\)

Step 2. Criss-crossing charges with elements present in compound

After criss-crossing, we get

1. \(L{i_2}C{O_3}\)\(M{g_3}{\left( {P{O_4}} \right)_2}\)

2. \(NaCl{O_4}\)

3. \(Ba{\left( {OH} \right)_2}\)

4. \({\left( {N{H_4}} \right)_2}C{O_3}\)

5. \({H_2}S{O_4}\)

6. \(Ca{\left( {C{H_3}COO} \right)_2}\)

7. \(M{g_3}{\left( {P{O_4}} \right)_2}\)

8. \(N{a_2}S{O_3}\)