Version: (using KDE 4.1.3) Installed from: Debian testing/unstable Packages I try to resolv: As2S3 + NaNO3 + Na2CO3 -> Na2SO4 + NaNO2 + CO2 + Na3AsO4 but No solution found. kalzium(9629) EQChemDialog::compute: Answer: "<b>1</b> As<b><sub>2</sub></b>S<b><sub>3</sub></b> + <b>1</b> NaNO<b><sub>3</sub></b> + <b>1</b> Na<b><sub>2</sub></b>CO<b><sub>3</sub></b> -> <b>1</b> Na<b><sub>2</sub></b>SO<b><sub>4</sub></b> + <b>1</b> NaNO<b><sub>2</sub></b> +<b>1</b> CO<b><sub>2</sub></b> + <b>1</b> Na<b><sub>3</sub></b>AsO<b><sub>4</sub></b> : No solution found" the solution exist: 1/2 As2S3 + 7 NaNO3 + 3 Na2CO3 -> 3/2 Na2SO4 + 7 NaNO2 + 3 CO2 + Na3AsO4
If you would like to solve it, you should enter variables to the formula: aAs2S3 + bNaNO3 + cNa2CO3 -> dNa2SO4 + eNaNO2 + fCO2 + gNa3AsO4 for example. I'm not able to test it now, but this should work (if not to complicated)
I tried it using my solution and I get: <b>1</b> As<b><sub>2</sub></b>S<b><sub>3</sub></b> + <b>14</b> NaNO<b><sub>3</sub></b> + <b>6</b> Na<b><sub>2</sub></b>CO<b><sub>3</sub></b> -> <b>3</b> Na<b><sub>2</sub></b>SO<b><sub>4</sub></b> + <b>14</b> NaNO<b><sub>2</sub></b> + <b>6</b> CO<b><sub>2</sub></b> + <b>2</b> Na<b><sub>3</sub></b>AsO<b><sub>4</sub></b> or in a human way: 1 As2S3 + 14 NaNO3 + 6 Na2CO3 -> 3 Na2SO4 + 14 NaNO2 + 6 CO2 + 2 Na3AsO4 Wich is equivalent to your solution. Can someone mark this bug as invalid?