Calculate the molality of a 0.677 m ethanol ( c 2 h 5 o h ) solution whose density is 0.588 g/ml

Chemistry

1 answer:

ANEK [815]1 year ago

4 0

The molality of a 0.677 m ethanol ( c 2 h 5 o h ) solution whose density is 0.588 g/ml.

What is molality and molarity?

The number of solvent moles per kilogram is known as molality. Because the mass of the solute and solvent in the solution remains constant, molality is the preferred concentration transfer method.

Molarity, also referred to as molar concentration, is the quantity of a material expressed as moles per litre of solution. Solutions marked with a molar concentration have a capital M. One mole of solvent per litre is present in a 1.0 M solution.

Molar mass (w) of C2H5OH = 46g

Molarity(M) = 0.677M

Density(D) = 0.588g/mol

Molality(m) = M/D * (1000 + w*M)

= 1187.2m

To learn more about molality and molarity from the given link below,

brainly.com/question/14770448

#SPJ4

You might be interested in

What does transgender mean

Mkey [24]

Transgender means that you got a gender change.

4 0

4 years ago

Read 2 more answers

You have the same two resistors on a 10 volt series circuit. Will the voltage going into the second resistor be more, less, or t

Keith_Richards [23]

both resistance will have same voltage across it which is equal to 5 volt.

if resistance value is different then voltage drop across them will be different.

current in both resistance would be same.

let's say resistance is 5 ohm of each one.

total current = total voltage / total resistance

= 10 /(5+5) = 10/10 = 1 amp

now voltage across 5 Ohm resistance = current × resistance = 1× 5 = 5 volt

7 0

4 years ago

Construct a simulated proton-decoupled 13C NMR spectrum for tert-butyl alcohol. Drag the resonance signal icon to the appropriat

atroni [7]

Answer:

The ¹³C-NMR Spectrum of tert-butyl alcohol will show only two signals.

(i) Signal at around 31 ppm:

This signal towards upfield is for the carbon atoms which are more shielded and are having rich electron surroundings. The height of peak at y-axis shows the number of carbon atoms as compared to other peaks. In this case it is three times the height of second signal hence, it shows that this peak corresponds to three carbon atoms.

(ii) Signal at around 70 ppm:

This signal towards downfield is for the carbon atom which is more deshielded and is having electron deficient surrounding. As compared to the second signal the height of this peaks corresponds to only one carbon. And the deshielded environment shows that this carbon is directly attached to an electronegative element.