HELPPP PLS IM DESPRATE MAJOR POINTS NEED ASAP We add excess NaCl solution (58.44 g/mol) to 38 mL of a solution of silver nitrate (AgNO3 169.88 g/mol), to form insoluble solid AgCl. When it has been dried and weighed, the mass of AgCl (143.32 g/mol) is found to be 1.11 grams.
What is the molarity of the original AgNO3 solution? The formula weight of NaNO3 is 85.00 g/mol.
Answer in units of M.

The original solution was 0.20 M AgNO₃.

Explanation:

We can first write the balanced chemical equation of the double-replacement reaction between the NaCl solution and AgNO₃ solution:

Recall that molarity is given by:

To find the molarity of the original AgNO₃ solution, then, we will need to find the amount of AgNO₃ in moles. We are given that the volume of the original solution was 38 mL.

To determine the moles of AgNO₃, we can convert the mass of AgCl to moles of AgCl and then to moles of AgNO₃.

We are given that the formula weight of AgCl is 143.32 g/mol.

From the equation, we can see that one mole of AgNO₃ yields one mole of AgCl.

This yields two ratios:

Using the above ratios, multiply with the given mass of AgCl:

Therefore, the molarity of the original AgNO₃ solution is:

In conclusion, the original solution was 0.20 M AgNO₃.

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.