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
Rina8888 [55]
3 years ago
10

2. Convert 5.3 x 1025 molecules of CO2 to moles.

Chemistry
2 answers:
Leto [7]3 years ago
8 0

ANSWER:

moles CO2 = 88 mol

EXPLAIN:

In order to go from molecules of CO2 to moles of CO2, we have to use the following relationship:

I usually set up dimensional analysis questions like this:

Quantity sought = Quantity given x conversion factor

  • Quantity sought → mol CO2
  • Quantity given → 5.3×1025 molecules
  • Conversion factor → 1mol/6.02×10∧23

Now we just plug the values into the format I have above (make sure your units cancel out as you are going through this process, that's how you know if you are doing the calculations correctly or not):

moles CO2 = 5.3×10∧25 molecules×1mol/6.02×10∧23 molecules

moles CO2 = 88 mol

Anna71 [15]3 years ago
6 0
Gdydhdduudhdhsjsjsjs
You might be interested in
How many calories of heat are necessary to raise the temperature of 378.2 g of water from 32.2 oC to the boiling point?
ivolga24 [154]

Answer: multiple apply them together then divide them

Explanation:

8 0
3 years ago
What would the formula of an ionic compound made of Aluminum and Oxygen be?
yan [13]

Answer:

Sodium Aluminate

Formula:-

\quad{:}\longrightarrow\sf NaAlO_2

<h3><u>Explore</u><u> </u><u>more</u><u>:</u><u>-</u></h3>

Melting points and boiling points of some ionic compounds

\boxed{\begin{array}{|c|c|c|c|} \cline {1-4}\Large\sf {Ionic\:Compounds} & \sf \Large {Chemical\:Formula} & \Large \sf{Melting\:point_{(k)}} & \Large\sf {Boiling\:point_{(k)}} \\ &&& \\ \cline {1-4} \sf Sodium\:Chloride & \sf NaCl & 1074 & 1686 \\ &&& \\ \cline {1-4} \sf Lithium\:Chloride & \sf \sf LiCl & 887 & 1600 \\ &&& \\ \cline {1-4} \sf Calcium\:Chloride & \sf CaCl_2 & 1045 & 1900 \\ &&& \\ \cline {1-4} \sf Calcium\:Oxide & \sf CaO & 2850 & 3120 \\ &&& \\ \cline {1-4} \sf Magnesium\:Chloride & \sf MgCl_2 & 981 & 1685 \\ &&& \\ \cline {1-4} \end{array}}

8 0
2 years ago
What could be the fourth quantum number of a 1s^2 electron be?
Bumek [7]

The forth quantum number is Spin quantum number and the value of Spin Quantum Number of 1s² will be +1/2. Therefore, the correct option is (B) option

<h3>What is Spin Quantum Number ?</h3>

It describes the orientation of the electron spin (rotation) in space.

In the given case of 1s² configuration,

since, the Quantum numbers are known as:

  • Principal quantum number (n) which cannot be zero.

       The allowed values of n are therefore 1, 2, 3, 4, and so on.

  • Angular quantum number (l) is able to be any integer between 0  

       and n-1.

       Therefore, for example, If n = 1, l will be 0,

                                                If n = 2, l can be either 0 or 1.

  • Magnetic quantum number (m) is able to be any integer between -l and +l.    

       Therefore, for example, If l = 3, m can be either -3 to +3.

  • Spin Quantum Number (ms): Ms = +½ or -½  accounts for the orientation of the spin axis of an electron as it is able to spin in only one of two directions.

Thus, since the fourth quantum number is Ms, spin, we infer that the answer is (B) option ie, Ms = +1/2 because it represents the positive spin on 1s².

Learn more about Quantum Number Here ;

brainly.com/question/15325270

#SPJ1

6 0
2 years ago
A solution made by mixing 20.0 g of a non-volatile compound with 125 mL of water at 25°C has a vapor pressure of 22.67 torr. Wha
Ainat [17]

We have that the molecular weight (3sf) of the compound (g/mol)

m=44.15g/mol

From the question we are told

A solution made by mixing 20.0 g of a non-volatile compound with 125 mL of water at 25°C has a vapor pressure of 22.67 torr. What is the molecular weight (3sf) of the compound (g/mol).

Generally the equation for the Rouault's law is mathematically given as

P=P_0 N

22.67=23.8*\frac{\frac{12.5}{18}}{\frac{125}{18}+\frac{15}{m}}\\\\\6.95+\frac{15}{m}=7.29\\\\\frac{15}{m}=7.29-6.95\\\\m=\frac{15}{0.34}\\\\m=44.11g/mol

Therefore

The molecular weight (3sf) of the compound (g/mol)

m=44.15g/mol

For more information on this visit

brainly.com/question/17756498

4 0
2 years ago
(07.07)What transformation has changed the parent function f(x) = log2 x to its new appearance shown in the graph below?(6 point
amid [387]
The answer is B. f ( x - 3 ) - 2





























7 0
3 years ago
Other questions:
  • In which reaction is the first ionization energy greatest?1.na + energy → na+ + e−2.k + energy → k+ + e−3.mg + energy → mg+ + e−
    7·2 answers
  • How do you convert this
    9·1 answer
  • ______________ forces are between different ATOMS of the SAME molecule. ______________ forces are between different MOLECULES of
    15·2 answers
  • What is the oxidation state of each element in febr2?
    7·2 answers
  • When heat energy is added, two changes are observed: change A: solid changes to a liquid. Change B: Solid changes directly to a
    15·1 answer
  • Calculate the volume of hydrogen needed to saturate the double bonds in 100 g of linoleic acid (RMM = 280).
    15·1 answer
  • What effect has impurities on the melting and boiling points of pure substances? illustrate your answer with an example
    11·1 answer
  • In order for sodium to have 8 valence electrons it would need to either gain _____ electrons or lose _____ electron.
    8·1 answer
  • Evaluate the following scenario and critically think about the following statement:
    8·1 answer
  • Can someone help me with this question please​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!