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Serga [27]
2 years ago
7

Please helpp!! I give brainliest!

Chemistry
2 answers:
guajiro [1.7K]2 years ago
8 0

Answer:

Volume is cut in half

Explanation:

• From boyles gas law

{ \rm{P \:  \alpha  \:  \frac{1}{V} }} \\  \\ { \rm{P _{1}V _{1} =  P_{2}V _{2} }}

  • P is pressure
  • V is volume

{ \rm{(1 \times V _{1}) = (2 \times V  _{2})}} \\  \\ { \rm{ \frac{V _{2}}{V_{1}} =  \frac{1}{2}  }} \\  \\ { \boxed{ \rm{V_{2} : V  _{1} =  \frac{1}{2}  }}}

ANEK [815]2 years ago
4 0

Answer:

just because of the air

Explanation:

big / the answer is volume stays the same

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If it takes 38.70cm of 1.90M NaOH to neutralize 10.30cm of H2SO4 in a battery, what is the molarity of H2SO4?
slamgirl [31]

Answer:

The molarity of the acid, H₂SO₄ is 3.57 M

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

H₂SO₄ + 2NaOH —> Na₂SO₄ + 2H₂O

From the balanced equation above,

Mole ratio of the acid, H₂SO₄ (nₐ) = 1

Mole ratio of the base, NaOH (n₆) = 2

Finally, we shall determine the molarity of the acid, H₂SO₄. This can be obtained as follow:

Volume of base, NaOH (V₆) = 38.70 cm³

Molarity of base, NaOH (M₆) = 1.90M

Volume of acid, H₂SO₄ (Vₐ) = 10.30 cm³

Molarity of acid, H₂SO₄ (Mₐ) =?

MₐVₐ / M₆V₆ = nₐ/n₆

Mₐ × 10.3 / 1.9 × 38.70 = 1/2

Mₐ × 10.3 / 73.53 = 1/2

Cross multiply

Mₐ × 10.3 × 2 = 73.53 × 1

Mₐ × 20.6 = 73.53

Divide both side by 20.6

Mₐ = 73.53 / 20.6

Mₐ = 3.57 M

Thus, the molarity of the acid, H₂SO₄ is 3.57 M

8 0
2 years ago
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