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
liq [111]
2 years ago
14

How many grams of Fe2+ are there in 0.003109 moles of Fe2+?

Chemistry
1 answer:
Sergio [31]2 years ago
7 0

Answer: 0.174 g

Explanation:

First of all understand that charge on an atom like here 2+ will not vary molar mass. because ions are formed by loss or gain of electrons and electrons do not contribute to the mass of an atom or ion. so losing or gaining electron doesnt create any difference.

molar mass of Fe, i.e. mass of 1 mole of Fe is 56 g. So, mass of 1 mole of Fe2+ will also be 56 g.

given is 0.003109 moles of Fe2+,

Use maths,

1 mole of Fe2+ weighs 56 g

So, 0.003109 moles will weigh = (56 g / 1 mol ) x 0.003109 = 0.174 g.

You might be interested in
uranium atoms each have 92 protons. how many protons does each u238 atom have? a. 92 b. 146 c. 238 d. 330
Brilliant_brown [7]
Number of protons as stated in the question = 92.

a. 92
4 0
3 years ago
I need help can someone please do so?
larisa86 [58]

Answer:

0.296 J/g°C

Explanation:

Step 1:

Data obtained from the question.

Mass (M) =35g

Heat Absorbed (Q) = 1606 J

Initial temperature (T1) = 10°C

Final temperature (T2) = 165°C

Change in temperature (ΔT) = T2 – T1 = 165°C – 10°C = 155°C

Specific heat capacity (C) =..?

Step 2:

Determination of the specific heat capacity of iron.

Q = MCΔT

C = Q/MΔT

C = 1606 / (35 x 155)

C = 0.296 J/g°C

Therefore, the specific heat capacity of iron is 0.296 J/g°C

8 0
3 years ago
HELP ASAP PLEASEEEEE!!!!! (serious answers only or i’ll report)
Sonbull [250]

Answer:

1st order

Explanation:

because magnesium has a coefficient of 1, it is first order

hydrochloric acid has a coefficient of 2, so it is second order

overall the reaction is third order (1+2)

5 0
3 years ago
Please help this assignment is due today. First person to answer gets 17 points. Please help ASAP.
DochEvi [55]

Answer:

hi umm can you please be my friend please thankyou so much and the answer for this is can i please get brainlist and can you please like this and rate it so now the answer is what type of chemical bond commonly forms between adjacent water molecules? of ionic, covalent, and hydrogen bonds, ionic bonds are the most common type of chemical bonds found in the body.please may i grt brain-list

5 0
3 years ago
Based on the data table, what evidence best suggests that this might be an object in freefall?
LuckyWell [14K]

Answer:

What datatable? Picture please!

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the temperature of a 100 liter container having 1 mole of an ideal gas at a pressure of 20 kilopascals? (Given: R = 8.31
    13·1 answer
  • A beaker holds xliters of 0.2M AlBr3. Give answers to parts a through din terms of x.a) How many moles of aluminum ions are ther
    12·1 answer
  • Why is the Hubble telescope located in space? *
    6·1 answer
  • Why displacemet reaction are useful
    11·1 answer
  • What is skeleton?<br>Write any two function of skeleton .​
    14·1 answer
  • The following diene does not undergo Diels Alder reaction because _____. Click on text below: A. it does not have an electron do
    11·1 answer
  • 25. How is the information in an image sent through the digital signal system?
    5·2 answers
  • The force of attraction between two masses of different substances that are in contact
    5·1 answer
  • PLEASE PLEASE HELP! CHEM!
    13·1 answer
  • why would air moving over a cold current cause fog (advection fog)? group of answer choices the cold current produces the fog wh
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!