What is another name for this equipment and what does it do to reduce the impact of coal use?

A solution of hydrochloric acid of unknown concentration was titrated with 0.10 M NaOH. If a 100.-mL sample of the HCl solution

madam [21]

<u>Answer:</u> The initial pH of the HCl solution is 3

<u>Explanation:</u>

To calculate the concentration of acid, we use the equation given by neutralization reaction:

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid which is HCl

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is NaOH.

We are given:

$n_1=1\\M_1=?M\\V_1=100mL\\n_2=1\\M_2=0.10M\\V_2=1mL$

Putting values in above equation, we get:

$1\times M_1\times 100=1\times 0.10\times 1\\\\M_1=\frac{1\times 0.10\times 1}{1\times 100}=10M$

1 mole of HCl produces 1 mole of $H^+$ ions and 1 mole of $Cl^-$ ions

To calculate the pH of the solution, we use the equation:

$pH=-\log[H^+]$

We are given:

$[H^+]=0.001M$

Putting values in above equation, we get:

$pH=-\log (0.001)\\\\pH=3$

Hence, the initial pH of the HCl solution is 3

6 0

3 years ago

Explain whether nitrogen atoms will form bonds with other atoms.

Stells [14]

Nitrogen can make bonds with other atoms.. Typically though it only makes 3 bonds, so it fills its octet.

4 0

3 years ago

Find the number of moles of the following substances 210 grams of NaHCO3

Triss [41]

The number of moles of 210 grams of NaHCO₃ is 2.5 moles.

<h3>How to find the Number of moles ? </h3>

To calculate the number of moles use the formula

Number of moles = $\frac{\text{Given Mass}}{\text{Molar Mass}}$

Mass of NaHCO₃ = 210 g

Now we have to find the Molar mass of NaHCO₃

= Atomic mass of Na + Atomic mass of H + Atomic mass of C + 3 (Atomic mass of O)

= 23 + 1 + 12 + 3 (16)

= 36 + 48

= 84 g/mol

Now put the value in above formula we get

Number of moles = $\frac{\text{Given Mass}}{\text{Molar Mass}}$

= $\frac{210\ g}{84\ g/mol}$

= 2.5 moles

Thus from the above conclusion we can say that The number of moles of 210 grams of NaHCO₃ is 2.5 moles.

Learn more about the Moles here: brainly.com/question/15356425

#SPJ1

8 0

2 years ago

If 4 moles of gas are added to a container that already holds 1 mole of gas, the pressure inside the container _____ due to the

sveticcg [70]

Answer: will be five times higher

If 4 moles of gas are added to a container that already holds 1 mole of gas, the pressure inside the container

will be five times higher due to the change in the amount of gas.

Explanation:

4 moles of gas + 1 mole of gas = 5 moles of gas.

Also, the ideal gas equation pV = nRT

show that pressure is directly proportional to number of moles; so, if 1 mole of gas contains molecules that move randomly and freely under pressure inside the container; addition of 4 extra moles will sum up to 5moles of gas molecules moving randomly under pressure, and that is five times higher as well.

4 0

3 years ago

Which of the following would not be considered an ionic compound?

svp [43]

CO2. An ionic compound is a metal and a nonmetal.

7 0

3 years ago