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katovenus [111]
4 years ago
11

Titration Practice

Chemistry
2 answers:
Taya2010 [7]4 years ago
6 0

Answer:

2 M.

Explanation:

I mole of NaCl reacts with 1 mole of HCl ( from the equation).

2 Liters of 5 molar contains 2 * 5 =  10 moles of NaCl so this will neutralise 10 moles of HCl.

So  the concentration of 5 liters of HCl must be 10/5 = 2M.

Gennadij [26K]4 years ago
5 0

Answer:

2 M

Explanation:

If it takes 2.0 L of 5.0 M NaOH to neutralize 5.0 of an HCl solution, the concentration of the HCI is 2 M.

2 Liters of 5 molars = 2 x 5 =  10 moles

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A redox reaction involves the reduction of one substance (gaining electron(s)) and the oxidation (losing electron(s)) of another
STALIN [3.7K]

Answer:

Your question is incomplete.

But what I can help you with is once a redox reaction occurs, one element oxidizes and another is reduced, generating the equilibrium of the reaction.

On the other hand, it is important to clarify all the redox reactions, reactions of reducing factors (positive protons) and oxygen that oxidize.

Explanation:

example:

Reduction half-reaction: {2 e ^ - + Cu ^ 2 + -> Cu} {2 e ^ - + Cu ^ 2 + -> Cu}

Half oxidation reaction: {Fe -> Fe ^ 2 + + 2 e ^ -} {Fe -> Fe ^ 2 + + 2 e ^ -}

or more frequently, also called general equation:

{Fe + Cu ^ 2 + -> Fe ^ 2 + + Cu} {Fe + Cu ^ 2 + -> Fe ^ 2 + + Cu}

4 0
3 years ago
30) How many grams of CH3OH must be added to water to prepare 210 mL of a solution that is
gavmur [86]

Answer:

Mass = 10.0 g

Explanation:

Given data:

Molarity = 1.50 M

Volume = 210 mL ( 0.21 L)

Grams of CH₃OH = ?

Solution:

Number of mole = molarity × volume

Number of mole = 1.50 M × 0.21 L

Number of mole = 0.315 mol

Mass of CH₃OH:

Mass = Number of moles ×  molar mass

Mass = 0.315 mol × 32.04 g/mol

Mass = 10.0 g

4 0
3 years ago
Find the radius
krek1111 [17]
The answer is .797 cm
5 0
3 years ago
Predict the precipitate that will be formed in the following reaction:<br> NaF(aq) + AgNO3(aq) →
netineya [11]

The precipitate that will be formed : AgF

<h3>Further explanation</h3>

One indication of the double displacement reaction is the precipitation reaction

Solubility Rules:  

• 1. soluble compound  

All compounds of Li +, Na +, K +, Rb +, Cs +, and NH4 +  

All compounds of NO₃⁻ and C₂H₃O₂⁻  

Compounds of Cl−, Br−, I− except Ag⁺, Hg₂²⁺, Pb²⁺  

Compounds of SO₄²⁻ except for Hg₂²⁺, Pb²⁺, Sr²⁺, Ba²⁺  

• 2. insoluble compounds  

Compounds of CO₃²⁻ and PO₄³⁻ except for Compounds of Li +, Na +, K +, Rb +, Cs +, and NH₄ +  

Compounds of OH− except Compounds of Li +, Na +, K +, Rb +, Cs +, NH₄⁺, Sr²⁺, and Ba²⁺  

Reaction

NaF(aq) + AgNO₃(aq) →NaNO₃(aq)+ AgF(s)

From the solubility rules above, it has been shown that the salts of the Ag⁺ cations are insoluble salts

8 0
3 years ago
QUESTION 57 Select the diamagnetic ion. <br> A. Ni2+ B. Cu2+ C. Sr2+ D. Cr3+​
VMariaS [17]

Answer:

c

Explanation:

5 0
3 years ago
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