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3 years ago

15

Write the Henderson-Hasselbalch equation for a solution of formic acid.

1 answer:

yKpoI14uk [10]3 years ago

7 0

<span>pH= 3.744 + log [HCO2-]/[HCO2H] </span>

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What is valence of helium

AnnZ [28]

The valence of helium is 0.

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2 years ago

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A solution in which more solute can be dissolved is called a(n) ???? solution

Svet_ta [14]

Answer:it's called unsaturated solution, because that's it's definition

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3 years ago

Place these hydrocarbons in order of decreasing boiling point. Rank from highest to lowest boiling point. 1. Paraffin, C40Hg2 2.

lesya [120]

Answer:

Paraffin > Heptadecane > Hexane > 2,2-dimethylbutane > Propane

Explanation:

It must first be establish that all the molecules listed in the question are alkanes. For alkanes, the intermolecular forces between the molecules of alkanes increases with increasing molecular weight. This is as a result of increase in the surface area of the molecule. Increase in surface area implies a greater degree of dispersion forces.

This is the reason why high boiling points are observed for high molecular weight alkanes.

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3 years ago

What is the Complete Ionic Equation of Iorn(III) Chloride and Sodium Hydroxide?

kiruha [24]

Answer:

The equation is based on Iron (III) not lorn(III)

Explanation:

FeCl₃(aq) + 3 NaOH(aq) ---> $Fe(OH)_{3(s)}$ + 3 NaCl(aq)

[ Balanced Molecular Equation ]

$Fe^{3+(aq)}$ + 3 $Cl^{-(aq)}$ + 3 $Na^{+(aq)}$ + 3 $OH^{-(aq)}$ ---> $Fe(OH)_{3(s)}$ + 3 $Na^{+(aq)}$ + 3 $Cl^{-(aq)}$

[ Balanced Full Ionic Equation ]

$Fe^{3+(aq)}$ + 3 $OH^{-(aq)}$ ---> $Fe(OH)_{3(s)}$ Fe(OH)3(s)

[ Balanced Net Ionic Equation ]

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3 years ago

Which of the following best compares how magnetic fields are used in electromagnets and generators? Question 3 options: In an el

Nataly [62]

Answer:

In an electromagnet an electric current is used to produce a magnetic field; in a generator a magnetic field is used to produce an electric current.

Explanation:

An electric current moving through a wire produces a magnetic field (electromagnet), and

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3 years ago