Will Na2CrO4 react exactly the same as Na2CrO7 when mixed with Pb(NO3)2
Sorry I meant Na2CrO4 and Na2Cr2O7 and basically i need to know if they react exactly the same with different elements
I don't know if they react with all elements the same. I do know that Pb(NO3)2 reacts with BOTH Na2CrO4 and Na2Cr2O7 to produce the same product of PbCrO4.
CrO4^-2 is the product in basic solution and Cr2O7^-2 is the product in acid solution. The two are shown below as a reaction.
2CrO4^-2 + 2H^+ ==> Cr2O7^-2 + H2O
I suspect the correct answer is to say that the product depends upon the pH of the reaction mixture. In highly acid solution the dichromate prevails and in basic/neutral solution the chromate predominates.
Dichromate is a stronger oxidizing agent than chromate.
To determine whether Na2CrO4 and Na2CrO7 would react the same way when mixed with Pb(NO3)2, you need to consider their chemical formulas and properties.
Na2CrO4 (sodium chromate) and Na2CrO7 (sodium dichromate) are both compounds containing chromium and oxygen. However, they have different structures due to different oxidation states of chromium.
When mixed with Pb(NO3)2 (lead nitrate), a double displacement reaction occurs, where the cations and anions swap partners.
To determine whether they react the same way, you need to write the balanced chemical equations for the reactions involving Na2CrO4 and Na2CrO7 with Pb(NO3)2.
1. Na2CrO4 + Pb(NO3)2 → ???
2. Na2CrO7 + Pb(NO3)2 → ???
To balance these equations and determine the reaction products, you need to consider the charges and valences of the ions involved.
After balancing the equations and taking into account the charges, you will be able to compare the resulting reaction products. If the reactions produce the same products, then Na2CrO4 and Na2CrO7 will react in the same way with Pb(NO3)2.