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serg [7]
3 years ago
5

An opening volumetric cylinder filled with water at volume 0.003m after period of

Chemistry
1 answer:
raketka [301]3 years ago
7 0

Answer:

= - 303.975 Joules

Explanation:

Given that:

The volume of the cylinder = 0.003 m^3

Now, to liters:

The volume = 0.003 *1000 L

= 3 L

For an open cylinder, we mean the atmospheric pressure is at standard condition.

Thus, the workdone = -PΔV

= - 1 atm (3 L)

= - 3 L atm

1 L atm to Joules

= 101.325 Joules

Therefore;

=- 3* 101.325 Joules

= - 303.975 Joules

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Elza [17]

Answer:

Yes, Democritus's atomic theory was correct.

Explanation:

He thought the first part of his theory states that all matter is made of atoms, which are indivisible. The second part of the theory says all atoms of a given element are identical in mass and properties. The other scientists added onto his theory to show that he was correct, except Aristotle, he thought the world was made of the 4 elements: earth, wind, fire, water.

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3 years ago
A 25.0 mL sample of H3PO4 requires 50.0 mL of 1.50 M NaOH for complete neutralization. What is the molarity of the acid?
Kamila [148]

Answer:

The molarity of acid is 3 M.

Explanation:

Given data:

Volume of H₃PO₄ = 25 mL

Volume of NaOH = 50 mL

Molarity of NaOH = 1.50 M

Molarity of  H₃PO₄ = ?

Solution:

Formula:

M₁V₁  =  M₂V₂

M₁ = M₂V₂ / V₁

M₁ = 1.50 M ×50 mL / 25 mL

M₁ = 75 M. mL / 25 mL

M₁ = 3 M

The molarity of acid is 3 M.

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4 years ago
What is science of love?​
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science of love

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(1 point) How many mL of water is added to dilute a 10 mL of 0.4 M solution to a new concentration of 0.1 M?
LiRa [457]

Answer:

The volume of water added is 30 mL

Explanation:

Given data

  • Initial concentration (C₁): 0.4 M
  • Initial volume (V₁): 10 mL
  • Final concentration (C₂): 0.1 M
  • Final volume (V₂): ?

We can find V₂ using the dilution rule.

C₁ × V₁ = C₂ × V₂

0.4 M × 10 mL = 0.1 M × V₂

V₂ = 40 mL

The volume of water added is

V₂ - V₁ = 40 mL - 10 mL = 30 mL

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45. What are the products of a neutralization reaction? (2 points)<br> DOWE
MAVERICK [17]

Answer:

Salt and water are the products of neutralization reaction

Example:

NaOH + HCl➡NaCl+H2O

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4 years ago
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