The molarity of a hydrochloric acid solution : 0.32 M
<h3>Further explanation </h3>
Titration is a procedure for determining the concentration of a solution by reacting with another solution which is known to be concentrated (usually a standard solution).
Titrations can be distinguished including acid-base titration, depositional titration, and redox titration. An acid-base titration is the principle of neutralization of acids and bases is used.
Acid-base titration formula
Ma. Va. na = Mb. Vb. nb
Ma, Mb = acid base concentration
Va, Vb = acid base volume
na, nb = acid base valence
1 ⇒HCl (valence=1, HCl ⇒H⁺+Cl⁻, one H⁺)
2⇒Ca(OH)₂(valence=2, Ca(OH)₂⇒Ca²⁺+2OH⁻, two OH⁻)
M₂=0.1 M
V₂=48 ml=0.048 L
V₁=30 ml=0.03 L
Answer:-
Solution:- It is a simple unit conversion problem. We could solve this using dimensional analysis.
We know that, 1 US dollar = 100 cents
1 cent = 1 US penny
So, 1 US dollar = 100 US pennies
Let's make the set up starting with 1 penny as:
=
Therefore, we can bye of Cf in one US penny.
I'm pretty sure your answer is D
Explanation:
Atomic number means total number of protons present in an element. Whereas mass number or atomic mass means the sum of total number of protons and neutrons in an atom or element.
When an atom is neutral then it contains same number of protons and electrons.
Symbol for any element showing atomic number and atomic mass is .
(a) the ion with a 1+ charge, atomic number 55, and mass number 133 will be Cesium and it is represented as .
(b) the ion with 54 electrons, 53 protons, and 74 neutrons will have mass number as (53 protons + 74 neutrons) = 127. Iodine is the element that has mass number 127. There will be a negative charge also as it contains 54 electrons.
Hence, symbol for this element will be .
(c) the ion with atomic number 15, mass number 31, and a 3 - charge will be phosphorous. Symbol for this element will be .
(d) the ion with 24 electrons, 30 neutrons, and a 3+ charge in elemental state will have in total 27 electrons and 30 neutrons. So, its mass number will be (27 + 30) = 57. Symbol of this element will be
Answer:
There are 7 regions in an electromagnetic spectrum
gamma rays
x-rays
ultraviolet
visible light
infrared
microwaves
radio waves
Explanation: