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
geniusboy [140]
3 years ago
7

When 10 grams of copper and 10 grams of iodine are mixed, what is the

Chemistry
2 answers:
Licemer1 [7]3 years ago
8 0
The answer is B) 15 grams
mixer [17]3 years ago
7 0

Answer:

15 grams

Explanation:

Mass of Cu = 10 g  

Molar mass of Cu = 63.546 g/mol

Moles of Cu =\frac{10 g}{63.546 g/mol}  = 0.1574

Mass of I₂ = 10 g  

Molar mass of I₂ = 253.8 g/mol

Moles of I₂ = \frac{10 g}{253.8 g/mol } = 0.04

I₂ here is the limiting reactant as it has the least number of moles.  

Based on the balanced equation,

1 mole of I₂ = 2 moles of CuI

0.04 mole of I₂ = 0.08 moles of CuI

Molar mass of CuI = 190.45 g/mol

Mass of CuI = 0.08 moles x 190.45 g/mol  = 15.236  g

You might be interested in
Which of the following is true about the third shell?
AlladinOne [14]

Answer:

It has 3 subshells, it has 9 orbitals, and it has the capacity for 18 electrons

Explanation:

4 0
3 years ago
Given that a 12.00 g milk chocolate bar contains 8.000 g of sugar, calculate the percentage of sugar present in 12.00 g of milk
neonofarm [45]
So in order for us to know the percentage of sugar present in a 12.00 g of milk chocolate, what we are going to do is that, we just have to divide 8 by 12 and multiply in by 100 and we get 66.67. Therefore, the percentage of sugar present in 12.00 g of milk chocolate bar is 66.67%. Hope this answers your question. Have a great day!
5 0
3 years ago
Read 2 more answers
HELP!!! An experiment was conducted to determine if the intermolecular forces in two liquids affects their boiling points. Each
ExtremeBDS [4]

Answer: it would be b time taken by the glass surface to dry

Explanation:

i had took the test and i got it right

4 0
2 years ago
Ideal gas (n 2.388 moles) is heated at constant volume from T1 299.5 K to final temperature T2 369.5 K. Calculate the work and h
bija089 [108]

Answer : The work, heat during the process and the change of entropy of the gas are, 0 J, 3333.003 J and -10 J respectively.

Explanation :

(a) At constant volume condition the entropy change of the gas is:

\Delta S=-n\times C_v\ln \frac{T_2}{T_1}

We know that,

The relation between the C_p\text{ and }C_v for an ideal gas are :

C_p-C_v=R

As we are given :

C_p=28.253J/K.mole

28.253J/K.mole-C_v=8.314J/K.mole

C_v=19.939J/K.mole

Now we have to calculate the entropy change of the gas.

\Delta S=-n\times C_v\ln \frac{T_2}{T_1}

\Delta S=-2.388\times 19.939J/K.mole\ln \frac{369.5K}{299.5K}=-10J

(b) As we know that, the work done for isochoric (constant volume) is equal to zero. (w=-pdV)

(C) Heat during the process will be,

q=n\times C_v\times (T_2-T_1)=2.388mole\times 19.939J/K.mole\times (369.5-299.5)K= 3333.003J

Therefore, the work, heat during the process and the change of entropy of the gas are, 0 J, 3333.003 J and -10 J respectively.

7 0
3 years ago
Which of the following is a source of water pollution?
Mashutka [201]
What are " of the following"? 

4 0
2 years ago
Read 2 more answers
Other questions:
  • Which acid has the greatest acid dissociation constant?
    7·2 answers
  • improvements in which area would help reduce the possibility of damage to the environment when using uranium as a fuel?
    7·2 answers
  • What are the metric units
    5·1 answer
  • A 350 mL saturated solution of magnesium hydroxide, Mg(OH)2 is prepared at 25 degrees Celsius. The solubility product constant,
    13·1 answer
  • Give the half reactions (Reduction-Oxidation) between Zinc and Copper(II) sulfate. Indicate which one is the reducing agent.
    10·1 answer
  • Ionic compounds _____.
    8·1 answer
  • Which type of molecule is shown below?
    10·1 answer
  • PLEASE HELP! SEE ATTACHED!
    13·1 answer
  • Pls someone help me with this question pls
    8·2 answers
  • All elements have a AHf, of ___
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!