2 years ago

Hydrogen chloride (HCl) is added to solid sodium hydroxide (NaOH).

Chemistry

1 answer:

SashulF [63]2 years ago

5 0

Answer:

NaOH and HCl

Explanation:

The reaction of sodium hydroxide, NaOH, with hydrochloric acid, HCl, produces NaCl and water.

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You have a solution that is 0.02M formate (HCOO-) and 0.03M formic acid (HCOOH), which has a Ka of 1.8x10-4. What is the pH of t

lisov135 [29]

Answer:

3.6

Explanation:

Step 1: Given data

Concentration of formic acid: 0.03 M

Concentration of formate ion: 0.02 M

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Step 2: Calculate the pH

We have a buffer system formed by a weak acid (HCOOH) and its conjugate base (HCOO⁻). We can calculate the pH using the <em>Henderson-Hasselbach equation</em>.

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3 years ago

Write the concentrated sulphuric acid H2C2O42H2O=2H2O+CO2+CO

masha68 [24]

Answer:

H2C2O4.2H20 → CO2 + CO + H2O

Explanation:

Oxalic acid crystals are nothing but dehydrated oxalic acid (H2C2O4 . 2H2O).

On heating, the water of crystallization is lost first. Then, the dehydrated oxalic acid decomposes into carbon dioxide(CO2), carbon monoxide(CO) and water(H2O).

Equations involved :

H2C2O4 . 2H2O → H2C2O4 + 2H2O

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HCOOH → CO + H2O

Overall equation : H2C2O4.2H20 → CO2 + CO + H2O

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3 years ago

Complete the given equation and mention whether heat is absorbed or evolved during the chemical reaction.

DaniilM [7]

Answer:

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this is answer

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2 years ago