How many grams of NaCl can be created from 9.8 grams of HCl

The mass of NaCl that would be decomposed will be 4.95 grams.

Explanation:

Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that total mass on the reactant side must be equal to the total mass on the product side.

The chemical equation for the reaction of sodium chloride and sulfuric acid follows:

Let the mass of sodium chloride be 'x' grams

We are given:

Mass of sulfuric acid = 9.8 grams

Mass of sodium bi sulfite = 12 grams

Mass of hydrochloric acid = 2.75 grams

Total mass on reactant side = 9.8 + x

Total mass on product side = 12 + 2.75 = 14.75 g

So, by applying law of conservation of mass, we get:

Hence, the mass of NaCl that would be decomposed will be 4.95 grams.

answer: the figure is attached herewith.

step-by-step explanation:   we are given to sketch a unit circle and label the terminal points corresponding to

in the attached figure, we have drawn a unit circle, with centre at o(0,0) and radius 1 unit. we have labelled the points a, b, c, d and e corresponding to the angles below

∠aox = 60°,

∠box = 120°,

∠cox = 180°,

∠dox = 240°,

∠eox = 300°.

and the coordinates are a(0.5,1), b(-0.5,1), c(-1,0), d(-0.5,-1) and e(0.5,-1).

thus, the answer is complete.