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Ronch [10]
3 years ago
6

A 20.9 ml sample of 0.267 m koh solution required 29.1 ml of aqueous acetic acid solution in a titration experiment. calculate t

he molarity of the acetic acid solution. answer in units of m.
Chemistry
1 answer:
andrey2020 [161]3 years ago
4 0
The molarity of the acetic acid solution is calculated as below

calculate the moles of KOH used
moles =molarity x volume
= 20.9 x0.267 = 5.58 moles

write the reaction equation

KOH + CH3COOH = CH3COOK + H2O

since  the reacting ratio between KOH to CH3COOH is 1:1 the  moles of CH3COOH is also = 5.58  moles

molarity of CH3COOH = moles/volume

=5.58 /29.1 =0.192 M

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nirvana33 [79]

Explanation:

first you get moles of silver

n=m/M

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8 0
3 years ago
Calculate the force applied to a car with mass of 1200 kg that has an acceleration of 2 m/s/s.
bearhunter [10]

Answer:

2,400

Explanation:

F = m × a

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6 0
3 years ago
A sample of monochloro pentaborane (9), b5h8cl, has a mass of 20.1 g. what amount, in moles, does this mass represent?
dolphi86 [110]

The number of moles in monochloro pentaborane (9) B_5H_8Cl is 0.37056.

We know that ,

Number of moles =   Given mass/ Molar mass

Given mass of monochloro pentaborane (9) is 20.1 g

The molar mass of monochloro pentaborane (9) is

                                        =  5*B +  8*H + Cl

                                        =  5* 10.811 + 8 * 1 + 35.453

                                        = 54.241

Thus number of moles =  20.1/54.241

                                      = 0.37056

To know more about mole concept

brainly.com/question/20483253

#SPJ4

 

5 0
1 year ago
Calculate the Ka of your acetic acid solution. Discuss this calculation. Based on the value of Ka, is acetic acid a strong acid
lord [1]

Based on our knowledge of strong and weak acids, we can confirm that the Ka value for acetic acid will be relatively low since it is a weak acid.

Acids can be strong or weak. This is determined by its <u><em>tendency to break apart into ions or stay together to form molecules.</em></u> Although somewhat counter-intuitive, strong acids are those that are most likely to break apart and therefore contain a <em><u>high number of </u></em><em><u>ions </u></em><em><u>within their solutions</u></em>.

Weak acids, on the other hand, are those that<em><u> tend to stay together in the form of </u></em><em><u>molecules </u></em><em><u>and therefore possess very </u></em><em><u>low ion counts </u></em><em><u>in their solutions.</u></em> The acid dissociation constant, Kₐ, is used to measure whether an acid is weak or strong and how much so. In the case of Acetic acid, the ka measurement will offer a low value, indicating a weak acid.

To learn more visit:

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4 0
2 years ago
Qué condiciones existen entre las condiciones históricas del surgimiento de la filosofía​
frutty [35]

Answer:

History is the study of the past in all its forms. Philosophy of history examines the theoretical foundations of the practice, application, and social consequences of history and historiography. It is similar to other area studies – such as philosophy of science or philosophy of religion – in two respects.

Explanation:

7 0
2 years ago
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