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
notsponge [240]
3 years ago
9

The molar mass of copper(II) chloride (CuCl2) is 134.45 g/mol. How many formula units of CuCl2 are present in 17.6 g of CuCl2? 7

.88 × 1022 formula units 1.84 × 1023 formula units 1.91 × 1023 formula units 1.42 × 1024 formula units
Chemistry
2 answers:
diamong [38]3 years ago
8 0

The answer is,

<u>A. 7.88 × 1022 formula units</u>



Sedaia [141]3 years ago
5 0
7.88  10^22 formula units 
You might be interested in
Be sure to answer all parts. for each reaction, find the value of δso. report the value with the appropriate sign. (a) 3 no2(g)
Maurinko [17]

Answer:

Change in entropy for the reaction is

ΔS° = -268.13 J/K.mol

Explanation:

To calculate the change in entropy for the balanced reaction, we require the natural entropy of all the reactants and products in the reaction.

3 NO₂(g) + H₂O(l) → 2 HNO₃(l) + NO(g)

From Literature.

S°(NO₂) = 240.06 J/K.mol

S°(H₂O) = 69.91 J/K.mol

S°(HNO₃) = 155.60 J/K.mol

S°(NO) = 210.76 J/K.mol

These are the entropies of the reactants and products under standard conditions of 298.15 K and 1 atm.

Note that

ΔS° = Σ nᵢS°(for products) - Σ nᵢS°(for reactants)

Σ nᵢS°(for products) = [2 × S°(HNO₃)] + [1 × S°(NO)]

= (2 × 155.60) + (1 × 210.76) = 521.96 J/K.mol

Σ nᵢS°(for reactants) = [3 × S°(NO₂)] + [1 × S°(H₂O)]

= (3 × 240.06) + (1 × 69.91) =790.09 J/K.mol

ΔS° = Σ nᵢS°(for products) - Σ nᵢS°(for reactants)

ΔS° = 521.96 - 790.09 = -268.13 J/K.mol

Hope this Helps!!

4 0
3 years ago
What are compounds????????????????
sweet [91]

Answer:

Compounds are pure substance consisting of two or more different atoms

8 0
2 years ago
Read 2 more answers
The overall reaction in a chemical cell is shown below as the reaction takes place (look in image)
GREYUIT [131]
According to provided equation it is clear that Zn metal is oxidized from Zn⁰ into Zn²⁺ which means that Zn metal dissolves and forming Zn²⁺ solution so the correct answer is:
mass of the Zn(s) electrode decreases

8 0
3 years ago
Convert 55 miles/ hour to feet/ second
mafiozo [28]

Answer:

80.685 feet/second

Explanation:

3 0
3 years ago
How many values of these of these trials can be considered accurate?
Gnoma [55]

Answer:

go to google

Explanation:it all ways work

6 0
3 years ago
Other questions:
  • When 1.00 g of boron is burned in o2(g) to form b2o3(s), enough heat is generated to raise the temperature of 733 g of water fro
    7·1 answer
  • How might social interactions help lower the risk of alzhemers diseases
    5·2 answers
  • A solution that is a 4 on pH scale is a
    8·2 answers
  • A new planet is discovered in a different solar system. The new planet is much like Earth. One difference is that the planet doe
    6·2 answers
  • If 50.0 g of water saturated with potassium chloride at 80.0°C is slowly evaporator to dryness, how many grams of the dry salt w
    7·1 answer
  • What are the two types of numbers in experimental calculations?
    12·1 answer
  • Am i the only one getting a red text saying my question is mean?
    10·1 answer
  • You have the compound CH4. The first element is a
    6·1 answer
  • Help! giving brainliest
    5·1 answer
  • What mass does a nuetron have?​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!