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Yuki888 [10]
4 years ago
15

Forrest spills some acid on the lab floor. He notifies his teacher and begins to look for baking soda to neturalize the acid on

the floor. Who should be notified next ?
Chemistry
2 answers:
Romashka [77]4 years ago
8 0

Explanation:

Since, acid is spilled on the lab floor so, first of all the teacher must be notified about it. As teacher can better tell you what should be done in such a case.

At the same time, rest of the students present in the lab must be notified about it so that no one can accidentally step onto the acid otherwise it might cause a serious injury to anyone.

Thus, we can conclude that rest of the students or classmates should be notified next in the given situation.

gregori [183]4 years ago
7 0
His classmates should be notified next
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Answer:

(D) Neither I nor II

Explanation:

The reagent potassium hydrogen phthalate is found in pure form and it is not partially hydrated .

The pallet form of NaOH ( solid form )  absorbs carbon dioxide gas from the atmosphere but NaOH in solution form does not absorb carbon dioxide .

Hence option D ) is right choice .

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How many milliliters of an aqueous solution of 0.238 M iron(III) chloride is needed to obtain 18.8 grams of the salt?
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Explanation:

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3 years ago
In the Bohr model of the atom, the electrons move in fixed, ________ paths around a dense, positively-charged nucleus. On the ot
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Answer:

Answers are in parentheses.

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6 0
3 years ago
Calculate the pka of hypochlorous acid. The ph of a 0.015 m solution of hypochlorous acid has a ph of 4.64.
o-na [289]

Answer:

  • pKa = 7.46

Explanation:

<u>1) Data:</u>

a) Hypochlorous acid = HClO

b) [HClO} = 0.015

c) pH = 4.64

d) pKa = ?

<u>2) Strategy:</u>

With the pH calculate [H₃O⁺], then use the equilibrium equation to calculate the equilibrium constant, Ka, and finally calculate pKa from the definition.

<u>3) Solution:</u>

a) pH

  • pH = - log [H₃O⁺]

  • 4.64 = - log [H₃O⁺]

  • [H_3O^+]= 10^{-4.64} = 2.29.10^{-5}

b) Equilibrium equation: HClO (aq) ⇄ ClO⁻ (aq) + H₃O⁺ (aq)

c) Equilibrium constant: Ka =  [ClO⁻] [H₃O⁺] / [HClO]

d) From the stoichiometry: [CLO⁻] = [H₃O⁺] = 2.29 × 10 ⁻⁵ M

e) By substitution: Ka = (2.29 × 10 ⁻⁵ M)² / 0.015M = 3.50 × 10⁻⁸ M

f) By definition: pKa = - log Ka = - log (3.50 × 10 ⁻⁸) = 7.46

5 0
4 years ago
DO NOT COMMENT IF YOUR NOT GOING TO HELP ITS REALLY ANNOYING :/
blondinia [14]

Answer:

50 mL; 7

Explanation:

By looking at the graph, the boundary point where the solution turns from acidic to basic appears at approximately 50 mL.

Because this is a titration between a strong acid and strong base, the pH of the equivalence point is always 7 (aka neutral).  

8 0
3 years ago
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