1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
valina [46]
3 years ago
5

Which of the following is a strong acid? A) HCIO2 B) HF C) HBO3 D) H2SO3 E) H2SO4

Chemistry
1 answer:
ehidna [41]3 years ago
3 0

Answer:

Sulfuric acid

Explanation:

Acid strength (in water) is measured as the equilibria of dissociation of the acid into hydronium and its conjugated base. The greater the Ka value, greater the acid strength.

This equilibrium constant is denominated Ka Ka=\frac{[H+]}{[HA]} where [H+] stands for the molar concentration of hydronium and [HA] stands for the molar concentration of the non-dissociated acid.

The Ka values for these acids are: 1.02x10^{-2} for HClO2; 6.4x10^{-4} for HF; 5.8x10^{-10} for HBO3; 1.2x10^{-2} for H2SO3 and 1.x10^{3} for H2SO4

So, as the greatest Ka is from H2SO4 it is the strongest acid in this list.

You might be interested in
A galvanic cell whose cell reaction is 2Fe3+(aq) + Zn(s) → 2Fe2+(aq) + Zn2+(aq) has a cell potential of 0.72V. What is the maxim
sesenic [268]

Answer:

138.96kJ is the maximum electrical work

Explanation:

The maximum electrical work that can be obtained from a cell is obtained from the equation:

W = -nFE

<em>Where W is work in Joules,</em>

<em>n are moles of electrons = 2mol e- because half-reaction of Zn is:</em>

Zn(s) → Zn²⁺(aq) + 2e⁻

F is faraday constant = 96500Coulombs/mol

E is cell potential = 0.72V

Replacing:

W = -2mol*96500Coulombs/mol*0.72V

W = - 138960J =

<h3>138.96kJ is the maximum electrical work</h3>

<em />

5 0
2 years ago
Explain where the weight of an atom is found what is responsible for that weight and why
padilas [110]

Answer:

The majority of the weight in an atom is found in the nucleus.

Explanation:

The protons and neutrons that make up the nucleus of the atom may take up a tiny amount of space in comparison to the rest of the atom, but they are far more dense than the electrons that orbit the nucleus.

6 0
3 years ago
In 1865 a pond was surrounded by open fields today the same area is swampy and surrounded by a forest which process is responsib
Nookie1986 [14]

Answer:

erosion

Explanation:

3 0
2 years ago
Read 2 more answers
Number of sodium atom(s) in salt (NaCl)
asambeis [7]

Answer:

NaCl consists of one atom each of sodium and chlorine. Hence, each molecule of NaCl has 2 atoms total.

Explanation:

6 0
2 years ago
Read 2 more answers
A student submits the following work on the mass number, but he has made a few mistakes. Select the sentences that are incorrect
rewona [7]

Answer

 

Calculating the mass number for an atom requires that we know the atomic number and the number of protons in the atom’s nucleus. The mass number then gives us the average weight of atoms of a given element. However, as long as the number of protons equals the number of neutrons, the values balance out and we always obtain a whole number for the mass number.

Explanation:

those 3

7 0
3 years ago
Other questions:
  • As a liquid is added to a beaker, the pressure exerted by the liquid on the bottom of the beaker does what
    8·1 answer
  • What is the term for the amount of energy that is needed for a chemical reaction to occur?
    10·1 answer
  • Paraphrase the first part of newton’s first law of motion
    9·1 answer
  • What kind of glass is the following Si, O, Na, B, Al no plastic, no visible change, will shatters to high impact? 1. Pyrex Glass
    7·1 answer
  • Which of the following pairs of elements is most likely to form a covalent bond? A. Sodium and chlorine B. Magnesium and Oxygen
    9·1 answer
  • How many mL of 0.125 M Ba(OH)2 would be required to completely neutralize 75.0 mL of 0.845 M HCl? What is the pH of the solution
    5·1 answer
  • Based on electronegativity, select the molecule with the most ionic character. Group of answer choices SBr2 OBr2 SeCl2 TeI2 SCl2
    7·1 answer
  • Which of the following could be described as exotic? *
    12·2 answers
  • Is rubbing alcohol polar, non-polar, or ionic?
    12·1 answer
  • The human skeleton is made mostly<br> of hard blank<br> tissue.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!