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nataly862011 [7]
3 years ago
10

Which of these compounds has the highest boiling point?

Chemistry
1 answer:
galina1969 [7]3 years ago
4 0

Answer:

2-Pentanone is the answer.

Explanation:

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How many grams of H2SO4 are needed to prepare 500. mL of a .250M solution?
zavuch27 [327]

Answer:

We need 12.26 grams H2SO4

Explanation:

Step 1: Data given

Volume of a H2SO4 solution = 500 mL = 0.500 L

Concentration of the H2SO4 solution = 0.250 M

Molar mass of H2SO4 = 98.08 g/mol

Step 2: Calculate moles H2SO4

Moles H2SO4 = concentration * volume

Moles H2SO4 = 0.250 M * 0.500 L

Moles H2SO4 = 0.125 moles

Step 3: Calculate mass of H2SO4

Mass of H2SO4 = moles * molar mass

Mass of H2SO4 = 0.125 moles * 98.08 g/mol

Mass of H2SO4 = 12.26 grams

We need 12.26 grams H2SO4

7 0
3 years ago
How can we find the volume of this fish tank? Please I needed but Good
r-ruslan [8.4K]
<h3><u>Answer;</u></h3>

Find the number of 1-foot cubes that fill the fish tank

<h3><u>Explanation;</u></h3>

Volume of a cuboid such as the fish tank is given by the product of length width and height;

Such that; Volume = length × width × height

Similarly, we can count the number of 1 foot cube that can fill the fish tank.

And since each cube has a volume of 1 cubic ft, then the number of cubes will be equivalent to the volume of the fish tank in cubic ft.

5 0
3 years ago
How many Mg atoms are presented in 3.00 moles of MgCl2
ella [17]

Answer:

1.81 x 10²⁴ atoms

Explanation:

To find the number of atoms in the given number of moles, we need to understand that every substance contains the Avogadro's number of particles.

More appropriately, a mole of any substance will contain the Avogadro's number of particles which is 6.02 x 10²³ atoms

 So;

           If 1 mole of a substance  = 6.02 x 10²³ atoms;

               3 mole of MgCl₂ will contain 3 x 6.02 x 10²³ = 1.81 x 10²⁴ atoms

3 0
3 years ago
Which letter represents the activated complex?<br> 1. A<br> 2. B<br> 3. F<br> 4. G
lana66690 [7]

Answer:

2. B.

Explanation:

  • The letter B represents the activated complex.
  • The activated complex is the intermediate that is formed between the states of reactants "F" and products "G".

  • Letter A represents the activation energy of the reaction, that is the difference in potential energy between the reactants "F" and activated complex "B".

  • Letter C represents the enthalpy change of the reaction, that is the difference in potential energy between products "G" and reactants "F".

  • Letter D represents the potential energy of products "G".

  • Letter E represents the potential energy of reactants "E".
4 0
3 years ago
What will i observe when i bring the elrctro magnet near to some aluminum clips?
Llana [10]
Hey mate here is ur ans
Basically, Aluminium is paramagnetic and has a very, very slight attraction to a magentic field. We don't notice it.
3 0
3 years ago
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