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2 years ago

Write down a balanced chemical equation for a neutralizing reaction of a titration

Chemistry

1 answer:

vesna_86 [32]2 years ago

3 0

Balanced chemical equation for a neutralizing reaction:

NaOH(aq) + HCl(aq) → NaCl(aq) + H₂O(l).

Neutralization is is reaction in which an acid and a base react quantitatively (same omount of substance) with each other.

pH of sodium hydroxide (NaOH) solution is above seven (basic), when solution of hydrochloric acid (HCl) is added, pH slowly dropping until it became neutral solution (pH is equal seven) and that is the endpoint of titration.

Chemist can draw pH curve (graph showing the change in pH of a solution, which is being titrated) for titration and determine an equivalence point.

More about neutralization: brainly.com/question/23008798

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Nostrana [21]

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Explanation:

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3 years ago

Select correct examples of linear molecules for five electron groups. Select correct examples of linear molecules for five elect

andrew-mc [135]

Explanation:

Formula to calculate hybridization is as follows.

Hybridization = $\frac{1}{2}[V+N-C+A]$

where,

V = number of valence electrons present in central atom

N = number of monovalent atoms bonded to central atom

C = charge of cation

A = charge of anion

So, hybridization of $BeCl_{2}$ is as follows.

Hybridization = $\frac{1}{2}[V + N - C + A]$

= $\frac{1}{2}[2 + 2]$

= 2

Hybridization of $BeCl_{2}$ is sp. Therefore, $BeCl_{2}$ is a linear molecule. There will be only two electron groups through which Be is attached.

Similarly, hybridization of $XeF_{2}$ is calculated as follows.

Hybridization = $\frac{1}{2}[V + N - C + A]$

= $\frac{1}{2}[8 + 2]$

= 5

Therefore, hybridization of $XeF_{2}$ is $sp^{3}d. Therefore, [tex]XeF_{2}$ is also a linear molecule. Though there are three lone pair of electrons present on a xenon atom and it is further attached with fluorine atoms through two electron pairs. Hence, there are in total five electron groups.

Thus, we can conclude that out of the given options $XeF_{2}$ is the correct examples of linear molecules for five electron groups.

8 0

3 years ago

Elements o fb the same group have the same chemical properties

Crazy boy [7]

Answer:

The chemical elements are arranged in order of increasing atomic number. The horizontal rows are called periods and the vertical columns are called groups. Elements in the same group have similar chemical properties. This is because they have the same number of outer electrons and the same valency.

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3 years ago

A sample of a gas at 25°C has a volume of 150 mL when its pressure is 0.947 atm. What will the temperature of the gas be at a pr

sertanlavr [38]

Answer: The temperature of the gas at a pressure of 0.987 atm and volume of 144mL is $25.16^0C$

Explanation:

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1$ = initial pressure of gas = 0.947 atm

$P_2$ = final pressure of gas = 0.987 atm

$V_1$ = initial volume of gas = 150 ml

$V_2$ = final volume of gas = 144 ml

$T_1$ = initial temperature of gas = $25^0C=(25+273.15)K=298.15K$

$T_2$ = final temperature of gas = ?

Now put all the given values in the above equation, we get:

$\frac{0.947\times 150}{298.15}=\frac{0.987\times 144}{T_2}$

$T_2=298.31K=(298.31-273.15)^0C=25.16^0C$

The temperature of the gas at a pressure of 0.987 atm and volume of 144mL is $25.16^0C$

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3 years ago

A chef is making deluxe sandwiches for a special guest. They call for 3 slices of jalapeno cheddar cheese and 5 slices of honey

elena55 [62]

36 sandwiches
Since you have the same amount of ingredients, you have to divide the number by the larger number because it is being decreased at a faster rate
180/5=36
He will run out of honey ham before the cheese

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4 years ago

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