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3 years ago

Which of these substances acts as a buffer? a. blood b. lemon juice c. curd

1 answer:

7 0

The correct answer is( A) blood.

when the buffer solution its PH value changes very little when a small amount

of strong acid or base is added to it, and here the bicarbonate buffering system is used to regular the PH of the blood that keeping the PH at nearly constant value by maintaining the original acidity or basicity of the solution.

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Which molecule is a stereoisomer of trans-2-butene?

S_A_V [24]

Answer:

I can't say that it is definitely write.

HHH

H-C-C-C

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2 years ago

How is coffee, Lemonade, Soda, Vinegar, Orange Juice an acid?

tatuchka [14]

Answer:

Curd, lemon juice, orange juice and vinegar taste sour. These substances taste sour because they contain acids. The chemical nature of such substances is acidic. The word acid comes from the Latin word acere which means sour.

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3 years ago

A megamole of titanium contains __________ moles of titanium.

Gala2k [10]

Answer is: 1 megamole is equal to 1000000 (one million) mole or 10⁶ moles.
The SI base unit for amount of substance is the mole. The SI prefix "mega" represents a factor of 10⁶, or in exponential notation, 1E6.
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8 0

4 years ago

Read 2 more answers

How much .05 M Hcl solution can be made by diluting 250 mL of 10 M HCl

kirza4 [7]

0.05 * V1 = 250 * 10

 V1 = 2500 / 0.05 

 V1 = 2500 * 20 

 V1 = 50000 mL 

V1 = 50 Liters .

Hope this helped! :3

6 0

3 years ago

What is the standard potential, e∘celle∘cell, for this galvanic cell? use the given standard reduction potentials in your calcul

Olin [163]

The standard potential for the given galvanic cell is 0.477 V

<h3>What is electrode potential?</h3>

The electrode potential is the electromotive force of a galvanic cell built using a standard reference electrode and another electrode whose potential is to be found.

There are two types of electrode potential

Oxidation potential - The potential associated with oxidation reaction is known as oxidation potential

Reduction potential - The potential associated with reduction reaction is known as reduction potential

At the anode, oxidation occurs

$Sn(s)\rightarrow Sn^{2+}(aq)+2e^-$

At the cathode, reduction occurs

$Cu^{2+}(aq)+2e^-\rightarrow Cu(s)$

$E^o_{cell} =E^o_{cathode} -E^o_{anode}$

= 0.337 - (-0.140)

= 0.477 V

Thus, The standard potential for the given galvanic cell is 0.477 V

Learn more about electrode potential:

brainly.com/question/17362810

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Disclaimer: The question was given incomplete on the portal. Here is the complete question

Question: What is the standard potential, E∘cell, for this galvanic cell? Use the given standard reduction potentials in your calculation as appropriate.

$Sn^{2+}(aq)+2e^-\rightarrow Sn(s)$ , E°red=−0.140 V

$Cu^{2+}(aq)+2e^-\rightarrow Cu(s)$ , E°red=+0.337 V

4 0

2 years ago

Read 2 more answers