What is the reaction of potassium carbonate and hydrochloric acid?
K2CO3 + 2HCl → H2O + CO2 + 2KClWhen potassium carbonate reacts with hydrochloric acid it vigorously produce carbon dioxide gas, leaving the aqueous state of potassium chloride.Hopes this helps:)
Calculate the number of moles produced?
Hey, I think I know how to solve this, but I'm kind of unsure... Step-by-step would be great. A chemist measured the amount of calcium sulfide produced during an experiment. She finds that 9.19 g of calcium sulfide (CaS) is produced. Calculate the number of moles of calcium sulfide produced. Round your answer to 3 significant digits. I would need to convert the 9.19 g into moles, right? So, something like 9.19g(#'s)(more#'s) so eventually I'd get answer into moles? I think I'm doing this all wrong...
How do you calculate equivalent weights for a compound?
Equivalent weight depends on type of the substance.For example,Equivalent weight of acid = molecular weight of acid/basicity of acidThe acid H2SO4 can donate 2 hydrogens. So, the basicity of H2SO4 is 2Equivalent weight of H2SO4 = 98 /2 = 49 g/eqEquivalent weight of base = molecular weight of base/acidity of acidThe base NaOH can donate 1 hydroxide ion (OH-). So, the basicity of NaOH is 1Equivalent weight of NaOH = 40 /1 = 40 g/eqEquivalent weight of salt = molecular weight of salt/charge present on ionic formThe salt Na2CO3 ionizes to form 2Na+ and CO3(–2). So, the charge present on bothions is 2.Equivalent weight of Na2CO3 = 106 /2 = 53 g/eq