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
Tanya [424]
4 years ago
6

An aqueous solution of nitric acid is standardized by titration with a 0.110 M solution of calcium hydroxide. If 21.1 mL of base

are required to neutralize 23.8 mL of the acid, what is the molarity of the nitric acid solution? ? M Nitric acid
Chemistry
1 answer:
Mumz [18]4 years ago
8 0

Answer:

\large \boxed{\text{0.195 mol/L}}

Explanation:

(a) Balanced equation

2HNO₃ + Ca(OH)₂ ⟶ Ca(NO₃)₂ + 2H₂O  

(b) Moles of Ca(OH)₂

\text{Moles of Ca(OH)}_{2} = \text{21.1 mL Ca(OH)}_{2} \times \dfrac{\text{0.110 mmol Ca(OH)}_{2}}{\text{1 mL Ca(OH)}_{2}}\\= \text{2.321 mmol Ca(OH)}_{2}

(c) Moles of HNO₃

The molar ratio is 2 mol HNO₃:1 mol Ca(OH)₂

\text{Moles of HNO}_{3} = \text{2.321 mmol Ca(OH)}_{2} \times\dfrac{\text{2 mmol HNO}_{3}}{\text{1 mmol Ca(OH)}_{2}}= \text{4.642 mmol HNO}_{3}

(d) Molar concentration of HNO₃

c = \dfrac{\text{moles of solute}}{\text{litres of solution}}\\\\c = \dfrac{n}{V}\\\\c= \dfrac{\text{4.642 mmol}}{\text{23.8 mL}} = \text{0.195 mol$\cdot$L$^{-1}$}\\\\\text{The molar concentration of the Ca(OH)$_{2}$ is $\large \boxed{\textbf{0.195 mol/L}}$}

You might be interested in
Which type of electromagnetic wave has less energy than a microwave?
polet [3.4K]
Radio waves.

From lowest to highest it is radio wave, microwave, infrared, visible light, ultraviolet, x ray, and then gamma.
7 0
2 years ago
How is a heterogeneous mixture different from a homogeneous mixture?
MArishka [77]
A homogeneous mixture<span> has the same uniform appearance and composition throughout. Many </span>homogeneous mixtures<span> are commonly referred to as solutions. A </span>heterogeneous mixture <span>consists of visibly </span>different<span> substances or phases. The three phases or states of matter are gas, liquid, and solid. Now this is my answer. So revise it a little. You dont want plagiarism </span>
6 0
4 years ago
Can some answer this please?
marysya [2.9K]

Answer:

b

Explanation:

it's b because I just went over that frome my class and got it correct

4 0
3 years ago
Read 2 more answers
What does an atomic number represent in an atom? number of neutrons number of protons number of electrons number of protons and
mr Goodwill [35]

Answer:

The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.

8 0
3 years ago
Read 2 more answers
A photon has a wavelength of 6.2 meters. Calculate the energy of the photon in joules. (Planck's constant is 6.626 × 10-34 joule
enyata [817]
Energy of photon = hc/λ = \frac{6.626*10 ^{-34}*2.998*10 ^{8}}{6.2} = 3.204*10 ^{-26} J. Hope this helps you!
4 0
3 years ago
Read 2 more answers
Other questions:
  • Select the correct answer. In which state of matter do molecules have the lowest kinetic energy? A. liquid state B. plasma state
    14·2 answers
  • Calculate the atomic mass of silicon. The three silicon isotopes have atomic masses and relative abundances of 27.9769 amu (92.2
    6·1 answer
  • What is the mass, in g, of 0.500 mol of 1,2-dibromoethane, CH2BrCH2Br?
    11·1 answer
  • Which statement summarizes the difference between mass and weight?
    13·1 answer
  • Which of the following elements possesses an expanded octet?
    14·1 answer
  • Draw the structure of the starting material needed to make 2‑methylhept‑3‑yne (or 2‑methyl‑3‑heptyne) using sodium amide in liqu
    7·1 answer
  • If 6.0g of carbon is heated in air the mass of the product obtained could be either 22.0g or 14.0g depending on the amount of ai
    14·1 answer
  • Which layer of the sun is responsible for producing the light shown in the picture above? Radiative zone Convective zone Photosp
    13·2 answers
  • After a skydiver deploys<br> his parachute, his rate of<br> speed decreases.
    14·1 answer
  • Chemistry question<br>label them<br>reactants, products,activation energy etc​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!