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MAVERICK [17]
3 years ago
14

What is the concentration of hcl in the final solution when 65 ml of a 12 m hcl solution is diluted with pure water to a total v

olume of 0.15 l?
Chemistry
1 answer:
Gre4nikov [31]3 years ago
6 0
<span>First I converted 0.15L in to mL (150mL) Then, (1.5M)*(65mL)=X *(150mL) (1.5M)*(64mL)/(150mL)=0.65M Answer;3.4 x 10^-2 M</span>
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Which equation represents the total ionic equation for the reaction of HNO3 and NaOH? Upper H superscript plus, plus upper O upp
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Answer:

Total Ionic equation:

H⁺(aq) + NO₃⁻ (aq) + Na⁺(aq) + OH⁻(aq) → H₂O(l) + Na⁺(aq) + NO₃⁻ (aq)

Explanation:

Chemical equation:

HNO₃ + NaOH →  NaNO₃ + H₂O

Balanced chemical equation:

HNO₃(aq) + NaOH(aq) →  NaNO₃(aq) + H₂O(l)

Total Ionic equation:

H⁺(aq) + NO₃⁻ (aq) + Na⁺(aq) + OH⁻(aq) → H₂O(l) + Na⁺(aq) + NO₃⁻ (aq)

Net ionic equation:

H⁺(aq) + OH⁻(aq) → H₂O(l)  

The NO₃⁻ (aq)  and Na⁺ (aq) are spectator ions that's why these are not written in net ionic equation. The water can not be splitted into ions because it is present in liquid form.

Spectator ions:

These ions are same in both side of chemical reaction. These ions are cancel out. Their presence can not effect the equilibrium of reaction that's why these ions are omitted in net ionic equation

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Which energy stored between plates of capacitor?
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Answer: Electric energy

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Step 1: Given data

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Step 2: Calculate the work (w) done by the gaseous mixture

We will use the following expression.

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w = -27.0 atm × (100.0 L - 88.0 L)

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Step 3: Convert w to Joule (SI unit)

We will use the conversion factor 1 atm.L = 101.325 J.

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