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]
2 years ago
7

Consider the cell notation Cd(s) | Cd(NO3)2(aq) || AgNO3(aq) | Ag(s) with standard reduction potentials for Cd2+ and Ag+ as -0.4

02V and 0.799V respectively. What conclusions would you make for the reaction after determining the Gibbs free energy (△G)
Chemistry
1 answer:
MakcuM [25]2 years ago
8 0

The value of the Gibbs free energy shows us that the reaction is spontaneous.

<h3>What is the Gibbs free energy?</h3>

The Gibbs free energy is a quantity that helps us to be able to determine the spontaneity of a reaction.

In order to obtain the Gibbs free energy, we must obtain the Ecell as follows; 0.799V - (-0.402V) = 1.201 V

Now;

△G = -nFEcell

△G = -(2 * 96500 * 1.201)

△G = -232kJ/mol

Learn more about free energy:brainly.com/question/15319033?

#SPJ1

You might be interested in
1. Calculate the molar mass of sucrose (C12 H11 O22)?
ohaa [14]

Answer:

=342g

Explanation:

atomic mass of C = 12g

atomic mass of H =  1g

atomic mass of O = 16g

Solution;

    C12 H22 O11

= 12 (12) + 22 (1) + 11(16)

= 144+ 22 + 176

= 342g

4 0
2 years ago
How many protons and electrons are present in the mg2+ ion? 1. 14 protons, 14 electrons 2. 12 protons, 10 electrons 3. 12 proton
Mama L [17]
There are 12 protons and 10 electrons in a <span>Mg2+</span> ion, the normal amount of neutrons is 12<span>.

</span>Explanation:

Magnesium is an element with atomic number 12. This means that every magnesium atom will have 12 protons. 

In a magnesium atom, there are 12 electrons, to make the atom have a neutral charge. When an ion is formed, the magnesium atom loses electrons. The <span>2+</span>charge shows that the magnesium ion has two more protons than electrons. The proton number for magnesium does not change, so <span>Mg<span>2+</span></span> must have two less electrons, i.e. 10 electrons.

The number of neutrons varies among different isotopes of magnesium. An isotope of an element means it just has different amounts of neutrons.

The most common isotope of magnesium is <span>24Mg</span>. This 24 indicates the total number of protons and neutrons. Magnesium has 12 protons, so must have 

<span>24−12=12 neutrons</span>

Other isotopes of magnesium have different numbers of neutrons, i.e. <span>25Mg</span> has 13neutrons, <span>26Mg</span> has 14 neutrons. <span>24Mg</span> is most likely being referred to in the question, though.


5 0
4 years ago
PLZ HELP WITH THESE QUICK// WILL AWARD BRANLIEST
Tom [10]

Answer 1

The sample will dissolve in more than 1 minute.

Explanation :-

Generally Solubility and rate of solubility of substances increase with the increase in temperature. So lower the temperature less fast will it dissolve in the same amount of water.

Since at 50 C it takes 1 minute to dissolve, at 20 C which is lower temperature it will take more time to dissolve.

Answer 2

Transition metals

Explanation:-

Hardness depends on the extent of metallic bonding for metals. More the number of electrons more the metallic bonding.

Alkali metals with just 1 valence electron have weak metallic bonding. Alkaline earth metals have just 2 valence electrons. Transition elements has more electrons in penultimate shell and valence shell than lanthanides. Transition metals with most metallic bonding are the hardest

5 0
3 years ago
The enthalpy change for converting 1.00 mol of ice at -50.0°c to water at 70.0°c is __________ kj. the specific heats of ice, wa
kogti [31]
First, calculate for the amount of heat used up for increasing the temperature of ice.

      H = mcpdT
       H = (18 g)*(2.09 J/g-K)(50 K) = 1881 J

Then, solve for the heat needed to convert the phase of water.
    H = (1 mol)(6.01 kJ/mol) = 6.01 kJ = 6010 J

Then, solve for the heat needed to increase again the temperature of water.
    H = (18 g)(4.18 J/gK)(70 k)
    H = 5266.8 J

The total value is equal to 13157.8 J

Answer: 13157.8 J
8 0
4 years ago
When the ideal gas law is arranged as shown below, what property of the gas is being solved for (represented by the X)? x equals
Mkey [24]

That's kind of a ponderous way to describe it, but your 'X' represents
the absolute temperature of the ideal gas.
3 0
3 years ago
Other questions:
  • You are on an island and need freshwater to drink. Which process could you
    11·1 answer
  • Calculate the ratio of effusion rates for 238uf6 and 235uf6. the atomic mass of u-235 is 235.054 amu and that of u-238 is 238.05
    15·2 answers
  • Constance is making a vegetable soup that contains carrots, beans, water, salt, pepper, bits of ham, and onions. the soup has to
    12·1 answer
  • What is the correct name for the n3– ion? nitride ion nitrogen ion nitrite ion nitrate ion
    12·2 answers
  • Sodium chloride comprises 97%-99% of table salt. Given their location on the periodic table, identify the ionic charge for each
    12·2 answers
  • A mixture containing only FeCl3 and AlClz weighs 5.95 g . The chlorides are converted to the hydrous oxides and ignited to Fe2O3
    6·1 answer
  • What are three elements that a magnet can contain.
    13·2 answers
  • PLEASE ANSWER QUICK! 50 POINTS!!!!
    8·2 answers
  • Mike and Mariah are in the same science class. Mike wants to know how the water cycle transports energy and matter. Which of the
    13·2 answers
  • A waste treatment settling tank treats an industrial waste inflow (QIN) of 0.2 m3/s with a suspended particulate concentration (
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!