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frozen [14]
3 years ago
14

Write a procedure that you would follow to demonstrate the effect of increasingly higher concentrations of hydrochloric acid on

its rate of reaction with antacid tablets.
Chemistry
1 answer:
Hitman42 [59]3 years ago
7 0
The reaction would produce bubbles of gas.

We can prepare 3-5 test tubes of acid with increasing concentrations. Then, we add antacid tablets to each and note the time taken for the tablet to dissolve and stop producing bubbles. The lesser the time taken, the greater the rate of reaction.
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A flask has a mass of 78.23g when empty and 593.63g when filled with water.When the same flask is filled with concentrateds ulfu
butalik [34]

Answer:

Density of concentrated H2SO4 = 1.99g/cm^3 = 1991.79Kg/m^3

Explanation:

mass of empty flask = 78.23g mass of flask filled when with water = 593.63g.

mass of flask filled when with concentrateds sulfuric acid, H2SO4 = 1026.57g

Mass of water = (mass of flask filled when with water) -

(mass of empty flask) = 593.63g - 78.23g = 515.4g

Volume of flask = volume of water = volume of concentrateds sulfuric acid, H2SO4 =

(mass of water)/ density of water) = 515.4g/1.00g/cm^3 = 515.4cm^3

The density of concentrated sulfuric acid is given by

Density of concentrated H2SO4 = (mass of H2SO4) ÷ (volume of H2SO4) = 1026.57g/515.4cm^3 = 1.99g/cm^3 = 1991.79Kg/m^3

7 0
2 years ago
4) Complete the following statement: Different elements...
Arada [10]
Have a different number of protons
4 0
3 years ago
Read 2 more answers
If false rewrite the statements to make them correct True or False.
MaRussiya [10]
1. Only particles in the solid state are not in motion 2. The particles of a solid have less energy than gas 3. In a glass of iced tea the sugar in iced tea are the solvent and the water is the solute.
3 0
2 years ago
Who is best associated with Psychoanalysis?
kotegsom [21]

Answer:

None of the above

Explanation:

Erikson's was a student of freud's and expanded of his theory of psychosexual development by emphasizing the importance of culture in parenting practices and motivations and adding three stages of adult development.

7 0
2 years ago
Formalin and methanal are both synonymous with formaldehyde
goldenfox [79]

Since the question is incomplete the complete question is as follows:

Formalin and methanal are both synonymous with formaldehyde. True or false?

Formalin as well as methanal are the chemical terms that are used for formaldehyde. Thus, the given statement is true.

  • Formalin is the trade name of formaldehyde.
  • Formaldehyde (HCHO) is also called as methanal. It is an organic compound which is simplest forms of aldehyde.
  • It is mainly used for manufacturing processes related to chemicals.
  • Formaldehyde is produced by the vapor phase oxidation of substrate methanol.

Hence, the given statement is true formalin and methanal are called as formaldehyde.

Learn more about formaldehyde:

brainly.com/question/4905584

8 0
2 years ago
Read 2 more answers
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