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
kvasek [131]
3 years ago
10

Determine the oxidation state of the metal ion in [co(nh3)5br]2+. express your answer as an integer.

Chemistry
1 answer:
Zanzabum3 years ago
7 0
                                           [Co(NH₃)₅Br]²⁺

Ligands and charges on them,

                             5 × NH₃  =  5 × 0  =  0

                             1 × Br⁻¹  =  1 × -1  =  -1

Charge on sphere  =  +2

So, putting values in equation,

                                       Co + (0)₅ - 1  =  +2

                                       Co + 0 - 1  =  +2

                                       Co - 1  =  +2

                                       Co  =  +2 + 1

                                       Co  =  +3

Result:
           Oxidation state of Co in [Co(NH₃)₅Br]²⁺ is +3.
You might be interested in
HELP.
Kamila [148]

Answer:

The mass of tin is 164 grams

Explanation:

Step 1: Data given

Specific heat heat of tin = 0.222 J/g°C

The initial temeprature of tin = 80.0 °C

Mass of water = 100.0 grams

The specific heat of water = 4.184 J/g°C

Initial temperature = 30.0 °C

The final temperature = 34.0 °C

Step 2: Calculate the mass of tin

Heat lost = heat gained

Qlost = -Qgained

Qtin = -Qwater

Q = m*c*ΔT

m(tin)*c(tin)*ΔT(tin) = -m(water)*c(water)*ΔT(water)

⇒with m(tin) = the mass of tin = TO BE DETERMINED

⇒with c(tin) = the specific heat of tin = 0.222J/g°C

⇒with ΔT(tin) = the change of temperature of tin = T2 - T1 = 34.0°C - 80.0°C = -46.0°C

⇒with m(water) = the mass of water = 100.0 grams

⇒with c(water) = the specific heat of water = 4.184 J/g°C

⇒with ΔT(water) = the change of temperature of water = T2 - T1 = 34.0° C - 30.0 °C = 4.0 °C

m(tin) * 0.222 J/g°C * -46.0 °C = -100.0g* 4.184 J/g°C * 4.0 °C

m(tin) =  163.9 grams ≈ 164 grams

The mass of tin is 164 grams

4 0
3 years ago
____ HBr + ____ Mg(OH)2 ---> ____ MgBr2 + ____ H2O
swat32
Hello Camkirkland,
I think that you are trying to balance this equation.
In order to balance a chemical equation, the numbers of atoms of each element must be equal on both sides of the equation.

In this particular equation, the answer would be (2) HBr + (1) Mg(OH)2 ---> (1) MgBr2 + (2) H2O.

Hope this answers your question!
4 0
3 years ago
An astronaut in her spacesuit weighs 300 lb on earth. What would her weight be on the moon?
Phantasy [73]
She would be 150 on the moon because the moon has half the mass of earth
6 0
2 years ago
Read 2 more answers
Are pure substances homogeneous or heterogeneous
Svetllana [295]

The answer is homogenous i think

6 0
2 years ago
On what day the lining of the uterus builds up
Mariulka [41]
28 days 3 2 2 2 3 3 3 do not mind these answers
7 0
3 years ago
Read 2 more answers
Other questions:
  • What occurred when rutherford exposed nitrogen gas to alpha particles?
    13·2 answers
  • How to balance an ionic equation BaCl2 + 2NH4CH3COO
    8·1 answer
  • The elements in group 17 of the periodic table are all called halogens. All halogens have the same
    8·2 answers
  • PLEASE HELP WITH PAGE 1 FOR QUESTIONS 1, 2, 3 WITH THE GRAPHING THANK YOU.
    9·1 answer
  • An isotope of the element fluorine has 9 protons and 10 neutrons. What is the name of this isotope?fluorine
    5·2 answers
  • Find the percent by mass of sodium chloride in a 1.20 M NaCl solution. The density of the solution is 1.06 g/mL
    15·2 answers
  • The elements on the Periodic Table of the Elements are arranged in order of increasing
    12·2 answers
  • Part 1: Fill in the blank<br> Newton’s Second Law: Unbalanced forces cause an object to ______.
    11·2 answers
  • Please help me pleaseeeeeeeeeeeeeeeeeeeee
    6·2 answers
  • What happens to the concentration of both H3O+ and OH- ions as water is added <br> to a base?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!