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
Alborosie
3 years ago
7

(b)Calculate the number of moles of CuSO4 that were in the impure sample of CuSO4(s) .

Chemistry
1 answer:
irga5000 [103]3 years ago
6 0

Answer:

The questions are incomplete

Explanation:

(b) This question is incomplete. However to calculate the number of moles of CuSO₄ present in the impure sample. The formula below can be used;

number of moles = mass of CuSO₄ present in the impure sample ÷ molar mass of CuSO₄

(c) This question is also incomplete. However, to calculate the mass percentage of CuSO₄ present in the impure sample of CuSO₄, the formula below can be used.

Mass percentage of CuSO₄ =

mass of CuSO₄ present in the impure sample/mass of impure CuSO₄ × 100

Thus, the mass of the impure sample must be measured also since the actual mass of the CuSO₄ present in the impure sample must have been measured before calculating the number of moles.

You might be interested in
What is a substrate?
Anestetic [448]

Answer:

D. a reactant that is catalyzed by an enzyme

Explanation:

um

search engime

7 0
2 years ago
How do you show the formation of an ionic bond using a Lewis dot diagram ?
Luden [163]
An x would represent the gained electrons
A . Would represent the valence electrons
You would just draw [ ] around the diagram
And the charge should be placed outside the brackets
6 0
3 years ago
Which of these solutes raises the boiling point of water the most?
lubasha [3.4K]
(E) ionic aluminum fluoride (AlF3)
7 0
3 years ago
Nitrogen and hydrogen react to form ammonia according to the following equation: N2(g)+3H2(g)⇌2NH3(g) Consider the following rep
earnstyle [38]

Answer:

The pressure  increases.

Explanation:

According to Avogadro's principle, equal volume of gases contains the same number of moles.  From the reaction equation, there is a decrease in the total number of moles from reactant  to product indicating a decrease in volume (as per Avogadro) and an increase in pressure  according to Boyle's Law-Volume is inversely proportional to  pressure.

6 0
3 years ago
9. Light is used in photosystem II and photosystem I to
Snowcat [4.5K]

Answer:

A. power the Calvin cycle.

Explanation:

because it helps to run theblife of plants with easily

4 0
3 years ago
Other questions:
  • What does the term "thermometer" mean?
    7·2 answers
  • Which oneof the following would best be measured useing kilometers
    11·2 answers
  • For ethanol, propanol, and n-butanol the boiling points, surface tensions, and viscosities all increase. what is the reason for
    15·1 answer
  • In which two groups do the majority of the elements not form ions
    13·1 answer
  • Which of the following has higher ionization energy - Be or Ca. Explain your choice in terms of attractive force between protons
    11·1 answer
  • Explain in 2-4 sentences what the difference between climate and weather is
    12·2 answers
  • the following punnett square shows a cross between two hybrid flowers. if the flowers show incomplete dominance, what fraction a
    15·2 answers
  • What would change oxygen into another isotope
    11·1 answer
  • 20 POINTS!! please helps me with this word bank!! due today!! you can use a word more than once please help
    14·2 answers
  • Point give away!!! 15 points not alot but ots ok ​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!