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
sertanlavr [38]
4 years ago
14

A 100. ml portion of 0.250 m calcium nitrate solution is mixed with 400. ml of 0.100 m nitric acid solution. what is the final c

oncentration of the nitrate ion?
Chemistry
1 answer:
pshichka [43]4 years ago
6 0
<span>Answer: Moles Ca(NO3)2 = 100 x 0.250 / 1000 = 0.025 Ca(NO3)2 >> Ca2+ + 2NO3- Moles NO3- = 2 x 0.025 = 0.05 Moles HNO3 = 400 x 0.100 / 1000 = 0.04 Total moles = 0.05 + 0.04 = 0.09 Total volume = 500 ml = 0.500 L M = 0.09 / 0.500 = 0.18</span>
You might be interested in
If there are 1.55 x 1024 molecules of hydrogen peroxide (H2O2), what is the mass of the<br>sample? ​
bezimeni [28]

Answer:

87.54 g of H₂O₂

Explanation:

From the question given above, the following data were obtained:

Number of molecules = 1.55×10²⁴ molecules

Mass of H₂O₂ =.?

From Avogadro's hypothesis,

6.02×10²³ molecules = 1 mole of H₂O₂

Next, we shall determine the mass of 1 mole of H₂O₂. This can be obtained as follow:

1 mole of H₂O₂ = (2×1) + (2×16)

= 2 + 32

= 34 g

Thus,

6.02×10²³ molecules = 34 g of H₂O₂

Finally, we shall determine mass of H₂O₂ that contains 1.55×10²⁴ molecules. This can be obtained as follow:

6.02×10²³ molecules = 34 g of H₂O₂

Therefore,

1.55×10²⁴ molecules

= (1.55×10²⁴ × 34)/6.02×10²³

1.55×10²⁴ molecules = 87.54 g of H₂O₂

Thus, 87.54 g of H₂O₂ contains 1.55×10²⁴ molecules.

8 0
3 years ago
Repeated trials and replication are the same thing. <br><br> - True<br> - False
Sauron [17]

Answer:

false

Explanation:

get a good grade :)

4 0
3 years ago
Which of the following theories provides information concerning both molecular shape and molecular bonding?
Alinara [238K]

I believe the answer is orbital hybridization theory

7 0
4 years ago
Acidic hydrolysis involves the nucleophilic addition of water to the protonated amide.
VladimirAG [237]

Answer:

a

Explanation:

dont have to explain

4 0
3 years ago
How is homogeneous and heterogeneous alike ?
tankabanditka [31]

Answer:

A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases. The three phases or states of matter are gas, liquid, and solid.

Explanation:

4 0
3 years ago
Other questions:
  • Uldilges of State
    7·1 answer
  • Identify the major factor affecting reaction rates that accounts for the following observations:
    8·1 answer
  • What is 745000 millimeters converted to Megameters?
    6·2 answers
  • Does a precipitate form when a solution of calcium chloride and a solution of mercury(I) nitrate are mixed together? Write the n
    10·1 answer
  • PLEASEEE help! BRAINLIEST to right answer! :,)
    11·1 answer
  • How do you find products in a chemical equation?
    15·1 answer
  • Which of the following is a pure substance?<br>Air<br>Blood<br>Copper<br>Wood​
    8·2 answers
  • Decide which of the following statements are true and which are false, concerning the kinetic molecular theory.
    9·1 answer
  • Due Tuesday 09-07-2021 Please help immediately!! I have 10 missing assignments from being absent
    15·2 answers
  • List the procedural steps, from start to finish, that are required to convert 2‑naphthol and allyl bromide into allyl 2‑naphthyl
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!