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2 years ago

Is HBr a polar compound? Why or why not?

Chemistry

2 answers:

LenKa [72]2 years ago

7 0

Yes, it is a Compound.

They both comprehend with the atoms of each sourse!

solong [7]2 years ago

4 0

HBr & HBr The two atoms bonded together aren't the same, so they have an unequal sharing of electrons. Unequal shared electrons lead to a polar molecule, which exhibits dipole-dipole IMFs. ... Because HBr is polar and Br2 is nonpolar, they will not dissolve in one another.

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An analytical chemist is titrating 118.3 mL of a 0.3500 M solution of butanoic acid (HC3H7CO2) with a 0.400 M solution of KOH. T

TEA [102]

Answer:

pH = 12.33

Explanation:

Lets call HA = butanoic acid and A⁻ butanoic acid and its conjugate base butanoate respectively.

The titration reaction is

HA + KOH ---------------------------- A⁻ + H₂O + K⁺

number of moles of HA : 118.3 ml/1000ml/L x 0.3500 mol/L = 0.041 mol HA

number of moles of OH : 115.4 mL/1000ml/L x 0.400 mol/L = 0.046 mol A⁻

therefore the weak acid will be completely consumed and what we have is the unreacted strong base KOH which will drive the pH of the solution since the contribution of the conjugate base is negligible.

n unreacted KOH = 0.046 - 0.041 = 0.005 mol KOH

pOH = - log (KOH)

M KOH = 0.005 mol / (0.118.3 +0.1154)L = 0.0021 M

pOH = - log (0.0021) = 1.66

pH = 14 - 1.96 = 12.33

Note: It is a mistake to ask for the pH of the acid solution since as the above calculation shows we have a basic solution the moment all the acid has been consumed.

4 0

2 years ago

What is the volume of water in 150ml of the 35% of sucrose with a specific gravity of 1.115?

anzhelika [568]

Answer:

The volume of the water is 108.71 mL

Explanation:

Step 1: Data given

Volume of water =150 mL = 0.150 L

concentration of sucrose solution 35 % w/w this means in 100 grams of water we have 35 grams of sucrose

specific gravity =1.115

Step 2: Calculate the density of the solution

Density = specific gravity * density of water

Density of solution = 1.115 * 1g/ mL

Density of solution = 1.115 g/ mL

Step 3: Calculate mass of the solution

Mass of solution = density ¨volume

Mass of solution = 1.115 g/ mL * 150 mL

Mass of solution = 167.25 grams

Step 4: Calculate mass of sucrose

35 % = 0.35 * 167.25 grams

Mass sucrose = 58.54 grams

Step 5: Calculate mass of water

Mass of water = mass of sample - mass of sucrose

Mass of water = 167.25 - 58.54 = 108.71 grams

Step 6: Calculate volume of water

Volume = mass / density

Volume = 108.71 grams / 1g/ mL

Volume = 108.71 mL = 0.10871 L

The volume of the water is 108.71 mL

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2 years ago

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If the H+ concentration is 0.00001 M, what is the OH- concentration?

Ne4ueva [31]

Answer:

1.00x10^-9

Explanation:

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2 years ago

Calculate the enthalpy of combustion of 1 mol decane, C10H22, (l), to form CO2 and H2O. ∆Hf0 for decane is —300.9 kJ/mol using t

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Answer:

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2 years ago

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siniylev [52]

The atomic number, the number of protons and the number of electrons.

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2 years ago

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