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
Gala2k [10]
3 years ago
13

4.515 x 10^24 atoms of purellium distinkamide is equal to ___ moles? 7.5 6.2 19.2

Chemistry
1 answer:
slamgirl [31]3 years ago
8 0

Answer:

Using dimensional analysis, we have....

4.515x1024 atoms x 1 mole/6.022x1023 atoms = 7.4975 moles = 7.498 moles of PD

So the official answer is 7.5

Explanation:

"Purellium Distinkamide" is a silly joke name for a made-up compound. The idea of this question is that no matter what the substance we are talking about is - water (H2O), hydrogen gas (H2), or even "Purellium Distinkamide" - a mole is always the same number of molecules, 6.022 x 1023. This is Avogadro's number and you have probably seen it around class a lot!

You might be interested in
How does the DNA of a daughter cell compare to the DNA of the parent cell in asexual reproduction?
Rufina [12.5K]

Answer:

The Answer is  B

Explanation:

I hope this helps ;)

4 0
3 years ago
Scientists often work on projects for a long time and fail to see sources of error in their research. Which process allows an ou
prohojiy [21]

Answer:

The correct approach is Option B (Peer Review).

Explanation:

  • Rather made reference to someone as a scientific peer-review, it encourages the specialist who has not been essential to the study team to analyze the study objectively and pointed out everyone's mistakes. It serves as major self-regulation for scholars and aims to make the publishing process somewhat credible. Hence, the solution to this issue is Peer Examination.
  • Funding organizations rarely have the capabilities to recognize out mistakes, whereas definitive analysis is a method of study that helps to make a definitive statement. The gathering of data is simply a process of scientific study.

Other approaches do not apply to the example mentioned. Although the one mentioned is right.

4 0
4 years ago
Read 2 more answers
11. Fill in the blanks below for a general chemical reaction (products, reactants).
Bad White [126]
Reactants on the left and products on the right
5 0
3 years ago
Sucralfate (molecular weight: 2087 g/mol) is a major component of Carafate®, which is prescribed for the treatment of gastrointe
dybincka [34]

Answer:

Option b. 0.048 M

Explanation:

We have the molecular weight and the mass, from sulcralfate.

Let's convert the mass in g, to moles

1 g . 1 mol / 2087 g = 4.79×10⁻⁴ moles.

Molarity is mol /L

Let's convert the volume of solution in L

10 mL . 1L/1000 mL = 0.01 L

4.79×10⁻⁴ mol / 0.01 L = 0.048 mol/L

3 0
3 years ago
The length of a spring when it's at rest is measured to be 0.56 centimeter. How many significant figures are there in this measu
lukranit [14]
Two. The zero before the decimal is insignificant
8 0
4 years ago
Other questions:
  • John rode 3150 m at an average speed of 350 m/min.If he had ridden at average of 375 m/min instead. How much sooner would it hav
    12·1 answer
  • Which 1 m solution would have the highest vapor pressure at a given temperature? view available hint(s) which 1 solution would h
    13·2 answers
  • 7. Which statement about scientific consensus is true?
    13·1 answer
  • Which element has the same number of energy levels as aluminum (Al) and the same number of valence electrons as calcium (Ca)?
    11·2 answers
  • We have air (21% O2 and 79% N2) at 23 bar and 30 C. 4. What is the ideal molar volume (m^3/kmol)? a. b. What is the Z factor? Wh
    8·1 answer
  • In what orbital would to valence electrons of strontium be found? a.) 5s b.) 4s c.) none d.) 5p​
    12·1 answer
  • The process by which energy from the Sun heats the water on Earth's surface, turning it into a gas, is called _____. A. infiltra
    7·2 answers
  • A flexible container at an initial volume of 6.13 L contains 6.51 mol of gas. More gas is then added to the container until it r
    5·1 answer
  • 1‑Propanol ( P ∘ 1 = 20.9 Torr at 25 ∘ C ) and 2‑propanol ( P ∘ 2 = 45.2 Torr at 25 ∘ C ) form ideal solutions in all proportion
    6·2 answers
  • What is the smallest whole-number coefficient for h₂s when the equation h₂s mno₄⁻ → mn²⁺ so₄²⁻ is balanced in acidic solution?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!