A commercially sold conc. HCl is 35% HCl by mass. If the density of this commercial acid is 1.46 g/mL, the molarity of this solution is :
(Atomic mass : Cl = 35.5 amu, H = 1 amu)
(Atomic mass : Cl = 35.5 amu, H = 1 amu)
- 10.2 M
- 12.5 M
- 14.0 M
- 18.2 M
The Correct Option is C
Solution and Explanation
Molarity =\(\frac{35}{\frac{36.5 \times 100}{1.46}} \times 1000 = 14.0\)M
Top Questions on antacids
- Which of the following statement is incorrect?
- Which among the following is an antacid?
- Which of the following compound is used as the antacid?
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: A mixture contains benzoic acid and naphthalene. The pure benzoic acid can be separated out by the use of benzene.
Reason R: Benzoic acid is soluble in hot water.
In the light of the above statements, choose the most appropriate answer from the options given below.
- Match List I with List IIChoose the correct answer from the options given below:
List I List II A. Antipyretic I. Reduces pain B. Analgesic II. Reduces stress C. Tranquilizer III. Reduces fever D. Antacid IV. Reduces acidity (stomach)
Questions Asked in JEE Main exam
- A closed organ and an open organ tube filled by two different gases having the same bulk modulus but different densities \( \rho_1 \) and \( \rho_2 \), respectively. The frequency of the 9th harmonic of the closed tube is identical with the 4th harmonic of the open tube. If the length of the closed tube is 10 cm and the density ratio of the gases is \( \rho_1 : \rho_2 = 1 : 16 \), then the length of the open tube is:
A sub-atomic particle of mass \( 10^{-30} \) kg is moving with a velocity of \( 2.21 \times 10^6 \) m/s. Under the matter wave consideration, the particle will behave closely like (h = \( 6.63 \times 10^{-34} \) J.s)
- Displacement of a wave is expressed as $$ x(t) = 5 \cos \left( 628t + \frac{\pi}{2} \right) \, \text{m}. $$ The wavelength of the wave when its velocity is 300 m/s is:
The displacement $ x $ versus time graph is shown below.
The displacement $ x $ is plotted against time $ t $. Choose the correct answer from the options given below:- A light wave is propagating with plane wave fronts of the type \( x + y + z = \text{constant} \). The angle made by the direction of wave propagation with the \( x \)-axis is:
Concepts Used:
Antacids
To neutralize stomach acids antacids type of drug are used. This tablet contain substances such as calcium, sodium bicarbonate, and magnesium, which act as base in the stomach.
Antacids can be used to treat a variety of symptoms caused by too much stomach acid, including:
- Regurgitation
- Bitter taste
- Persistent dry cough
- Pain while lying down
- Difficulty in swallowing.
- Heartburn is a burning sensation in your chest or throat caused by acid reflux.
- Abdominal pain (also known as the sour stomach)
- Nausea can be caused by a variety of illnesses which includes inflammation or acid-peptic ulcers of the oesophagus, gastritis and etc.
Types of Antacids:
- Aluminium Carbonate Antacids
- Calcium Carbonate Antacids
- Magnesium Carbonate Antacids