An acid has several definitions one would be that it is a proton donor and an electron donor. Also, it said to produce an H+ ion when in solution. For nitric acid in solution, it dissociates into ions which are NO- ions and H+ ions. So, it must be an acid. It has a dissociation reaction:
HNO3 = H+ + NO3-
Acetylsalicylic acid (ASA) or commonly known as aspirin is used as pain reliever, treatment for fever and inflammation. The type of bond that aspirin have is covalent bond. Covalent bond is when atoms share their electrons. Aspirin is made up of carbon, hydrogen and oxygen with a formula of C9H8O4.
Answer:
0.01 faraday
Explanation:
We'll begin by writing the balanced equation. This is illustrated below:
CaCl₂ (aq) —> Ca²⁺ (aq) + 2Cl¯ (aq)
Ca²⁺ (aq) + 2e —> Ca
Molar mass of Ca = 40 g/mol
Mass of Ca from the balanced equation = 1 × 40 = 40 g
1 mole of electron (e) = 1 faraday
2 moles of electrons (e) = 2 × 1 faraday
2 moles of electrons (e) = 2 faraday
From the balanced equation above,
40 g of Ca was deposited by 2 faraday.
Therefore, 0.2 g of Ca will be deposited by = (0.2 × 2)/40 = 0.01 faraday.
Thus, 0.01 faraday is needed for the reaction.
H₂SO₄ is composed of the most atoms
<h3>Further explanation</h3>
Given
Compounds of A. H2SO4 B. Li2N C. Mg(OH)2 D. NaF
Required
The most atoms
Solution
Compounds are composed of atoms of the same or different types
The number of atoms can be indicated from the subscript of each of the constituent atoms of the compound
A. H₂SO₄ : 2 atoms H, 1 atom S, 4 atoms O = 7 atoms
B. Li₂N : 2 atoms L, 1 atoms N = 3 atoms
C. Mg(OH)₂ : 1 atom Mg, 2 atoms O, 2 atoms H = 5 atoms
D. NaF : 1 atom Na, 1 atom F = 2 atoms
