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It means that there is more hydrochloric acid than is required to cause the reaction. its to do with ratios for example if you needed it to react with water (hypothetically) and the ratio required was 1:1 (again hypothetically) and you had 200ml of acid and only 100ml of water then 100ml would react of each giving you 200ml of the reacted "hydrochloric acidy water" (made that up its been a while since i done chemistry) and 100 ml "excess" of pure hydrochloric acid.
If its a practical experiment you are carrying out they tell you to use an excess for two reasons. to make sure you have enough to give the desired affect without having to be too precise and also unless you are working in optimal conditions ratios are never perfect. Depends on what level of chemistry you are at?
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What is the color of the indicator when an excess of hydrochloric acid has been added?
Red
How many molecules are produced when 2.5g of zinc react with an excess of hydrochloric acid?
molecules of what?
How do you deactivate hydrochloric acid?
Combine it with a base. If you mean hydrochloric acid as in stomach acid, baking soda is an old favorite.
How can you tell when as excess of hydrochloric acid has been added to the evaporating dish with the magnesium?
it makes salt
What should you do if you drink hydrochloric acid?
Should you drink hydrochloric acid by accident, spit out the remaining acid in your mouth. Drink one litre of water immediately to dilute the poison. Afterwhich, eat some sodium bicarbonate (baking soda) to neutralise part of the acid. Do not consume in excess because you stomach has hydrochloric acid in the first place.
What is the color of the indicator when an excess of hydrochloric acid has been added?
Red
What is the substance remaining in the beaker after evaporaiting the excess acid of hydrochloric acid with manganese?
This compound is the manganese dichloride.
How many molecules are produced when 2.5g of zinc react with an excess of hydrochloric acid?
molecules of what?
How do you deactivate hydrochloric acid?
Combine it with a base. If you mean hydrochloric acid as in stomach acid, baking soda is an old favorite.
How can you tell when as excess of hydrochloric acid has been added to the evaporating dish with the magnesium?
it makes salt
What would u see if excess cobalt oxide is warmed with some hydrochloric acid solution?
Hi
What should you do if you drink hydrochloric acid?
Should you drink hydrochloric acid by accident, spit out the remaining acid in your mouth. Drink one litre of water immediately to dilute the poison. Afterwhich, eat some sodium bicarbonate (baking soda) to neutralise part of the acid. Do not consume in excess because you stomach has hydrochloric acid in the first place.
Do they use hydrochloride acid to make cocaine powder?
If you mean hydrochloric acid the answeer ist yes, hydrochloric acid is used to percipictate cocaine of solution
What is the formula of hydrochlorate?
If you mean the anion from hydrochloric acid, it is not hydro chlorate but the chloride ion or Cl-
What is the Acid between the stomach?
If you mean "what is the acid in the stomach", it's primarily HCl (hydrochloric acid).
What acid is in stomach acid?
It contains hydrochloric acid.
Is hydrochloric acid an organic acid?
No. Hydrochloric acid is a mineral acid.
