What is the concentration (m) of a nacl solution prepared by dissolving 9.3 g of nacl in sufficient
water to give 350 ml of solution?

Molarity = 0.458M

Explanation:

Molarity is the representation of the solution.

Molarity:  

it is amount of solute in moles per litre of solution and represented by M

Formula used for Molarity

                      M = moles of solute / Litre of solution

Data Given:

NaCl = 9.3 g

volume of solution = 350 mL

volume of solution in litre = 350/1000

volume of solution = 0.35 L

Molarity = ?

Formula used to Calculate M

                      M = moles of NaCl / Litre of solution . . . . . . . . .  (1)

So

we have to first calculate moles of NaCl

                 Moles of NaCl = mass of NaCl/ Molar Mass (NaCl) . . . . . . .  (2)

*Molar Mass of NaCl = 58 g/mol

Put values in Eq (2)

                  Moles of NaCl = 9.3 g/ 58 g/mol

                  Moles of NaCl = 0.16 mol

Now

Put values in Eq (1)

                       M =  0.16 mol / 0.35 L

                       M = 0.458

So the Molarity = 0.458M

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.