First, write the chemical equation that represents the chemical reation to state the products:
AgNO3 (aq)+ NaCl (aq) → AgCl (s)+ NaNO3 (aq)
The terms (aq) are used to indicate tha the compund is in aqueous solution, whle (s) is used to indicate a solid compound.
You can use the solubility rules or a table of solubilities to check solubilities of Ag Cl and NaNO3 in water. I used a table of solubilities. If you do it you will find that NaNO3 is soluble in water and AgCl is insoluble. Then AgCl will form a precipitate.
Then, the answer is yes, precipitation of AgCl would occur.
The procedure, which can be used to determine more accurately the concentration of the unknown acid is TO BACK-TITRATE WITH ADDITIONAL HYDROCHLORIC ACID TO NEUTRALIZE THE ADDITIONAL SODIUM HYDROXIDE THAT WAS ADDED.
Monoprotic acids are acids that can donate only one proton per each molecule and they have only one equivalence point. Examples of monoprotic acids are HCI, HNO3 and CH3COOH.
The back titration method is typically used when one needs to determine the concentration of an analyte provided there is a known molar concentration of excess reactants.
From the information given in the question above, we are told that excess NaOH was added. To correct this mistake, the right thing to do is to use additional HCl to carry out back titration, taking note of the quantity of acid that will be needed to neutralize the excess NaOH.
The mass of Calcium required to complete this reaction is 4.008 g.
- Law of conservation of mass states that In a closed system, mass cannot be produced or destroyed, but it can be changed from one form to another.
- The mass of the chemical constituents before a chemical reaction is equal to the mass of the constituents after the reaction.
- In several disciplines, including chemistry, mechanics, and fluid dynamics, the idea of mass conservation is widely applied.
In the given reaction mass of product after completion of reaction is 13.614 g that means total mass of constituents before reaction should also be 13.614.
So,
mass of Ca + mass of O₂ + mass of S = mass of CaSO4
Ca + 6.400 g + 3.206 g = 13.614 g
mass of Ca = 13.614 - 9.606 = 4.008 g
Therefore, by law of conservation of mass 4.008 g of Ca is required for the completion of the reaction.
Learn more about mass conservation here:
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Hope the diagram below will help you. when a C=C is hydrogenated it gains 2 hydrogens turning it into a C-C.
Hope that helps
