Question

Sorry it is not physics but it is biology.What type of reaction is this? Is it spontaneous or non spontaneous? How can you the answer ?Give your explanation. Na2SO4 + BaCl2 --------- BaSO4 +2NaCl.
If anybody gives the correct then I will mark their answer as brainliest.

Answer 1

HEY MATE!!!!

IT IS A NON SPNTANEOUS...

As a nonspontaneous reaction is a reaction that does not favor the formation of products at the given set of conditions

Answer 2

it is not a spontaneous reaction

BaCl2+Na2SO4---->BaSO4+2NaCl

BaCl2+Na2SO4---->BaSO4+2NaCl

We used a white powder which is a mixture of BaCl2 and NaSO4 and mixed it with water and HCL plus heat.

Mass of white powder is 1.02 grams

Mass of Precipitate (BaSO4) is 0.17 grams

I know that the limiting reagent is BaCl2 but I can't figure it out with calculations.

BaCl2 = 208.2 g/mol

Na2SO4 = 142.04 g/mol

BaSO4 = 233.4 g/mol

Moles of BaSO4 = 0.17/233.4 =  0.00073 moles

By looking at the ratios there are 0.00073 moles of BaCl2 and Na2SO4 as reactants.

Mass BaCl2 = Moles X Molar Mass = 0.00073 x 208.2 = 0.15 grams

Mass Na2SO4 = 0.00073 x 142.04                          = 0.10