1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lana66690 [7]
3 years ago
5

Which volume of 2.0 M NaOH(aq) is needed to completely neutralize 24 milliliters of 1.0 M HCl(aq)?

Chemistry
1 answer:
blsea [12.9K]3 years ago
6 0

Answer:

12mLd

Explanation:

Given parameters:

Concentration of base, NaOH = 2.0M

Volume of acid, HCl = 24mL = 24 x 10⁻³L = 0.024L

Concentration of HCl = 1.0M

Unknown parameter

Volume of NaOH = ?

The equation of the reaction is NaOH + HCl → NaCl + H₂O

Method

1. Starting the known values, we find the number of moles of acid used. From the reaction equation , we know that:

            1 mole of NaOH reacts with 1 mole of HCl

We use the above to find the number of moles of base used

2. From the number of moles of base, we plug it into the equation below:

              Volume of NaOH = \frac{number of moles of NaOH}{concentration of NaOH}

Solution

Number of moles of acid = concentration of acid x volume of acid

Number of moles = 1M x 0.024L = 0.024mol

              From the balanced equation we know that:

                   1 mole of NaOH reacts with 1 mole of HCl

                   Therefore, the number of moles of NaOH is 0.024mol

Using the equation below, we have:

Volume of NaOH = \frac{number of moles of NaOH}{concentration of NaOH}

Volume of NaoH = \frac{0.024mol}{2.0M}

Volume of NaOH = 0.012L = 12mL

You might be interested in
The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energy . If the rate
vovangra [49]

Answer:

K2 = 61.2 M^-1.S^-1

Explanation:

We complete the question fully:

The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energy Ea = 71.0kJ/mol . If the rate constant of this reaction is 6.7M^(-1)*s^(-1) at 244.0 degrees Celsius, what will the rate constant be at 324.0 degrees Celsius?

Answer is as follows:

The question asks us to calculate the value of the rate constant at a certain temperature, given that it is at a particular value for a particular temperature. We solve the question as follows:

According to Arrhenius equation, the relationship between temperature and activation energy is as follows:

            k = Ae^-(Ea/RT)

where,   k = rate constant

              A = pre-exponential factor

          Ea  = activation energy

             R = gas constant

              T = temperature in kelvin

From the equation, the following was derived for a double temperature problem:

ln(k2/k1) = (-Ea/R) * (1/T1 - 1/T2)

We list out the parameters as follows:

         

      T1= (244 + 273.15) K = 517.15 K

      T2= (324+ 273.15) K =597.15 K

    K1  = 6.7 ,     K2 = ?

         R = 8.314 J/mol K

     Ea = 71.0 kJ/mol = 71000 J/mol

Putting the given values into the above formula as follows:

ln(k2/6.7) = (-71000/8.314) * (1/517.15 - 1/597.15)

lnk2 - 1.902 = 8539.8 * 0.000259

lnK2 = 1.902 + 2.21

lnK2 = 4.114

K2 = e^(4.114)

K2 = 61.2

Hence, K2 = 61.2 (M.S)^-1

7 0
3 years ago
Read 2 more answers
Nitrogen is an atom or molecules​
Pavel [41]

Answer:

Nitrogen will called as atom or molecule or ion too in the state which it exist means in which form it is present . 

7 0
2 years ago
Please match the example with the classification of matter in which it belongs. Column A 1. soil: soil 2. chocolate milk: chocol
bekas [8.4K]

Answer:

34

Explanation:

add

8 0
3 years ago
How many moles of nitrogen gas are there in 16.8 L of this gas at STP?
sweet-ann [11.9K]
According to Avogadro's Law, same volume of any gas at standard temperature and pressure will occupy same volume. And one mole of any Ideal gas occupies 22.4 dm³ (1 dm³ = 1 L).

Data Given:

                  n = moles = ?
                  V = Volume = 16.8 L

Solution:
               
As 22.4 L volume is occupied by one mole of gas then the 16.8 L of this gas will contain....

                           = ( 1 mole × 16.8 L) ÷ 22.4 L
                    
                           = 0.75 moles

Result:
           
16.8 L of Nitrogen gas will contain 0.75 moles at standard temperature and pressure.
4 0
3 years ago
What is the molar mass of NH4?
astraxan [27]

Answer:

NH4

Explanation:

7 0
3 years ago
Other questions:
  • `I am holding a balloon containing 439 mL of gas over my fireplace. The temperature and pressure of the gas inside the balloon i
    8·1 answer
  • 1. How many moles of water would be produced from 10 moles
    13·1 answer
  • A solution contains 0.0150 m pb2 (aq) and 0.0150 m sr2 (aq). if we add so42–(aq), what will be the concentration of pb2 (aq) whe
    13·1 answer
  • A gas Syringe contains 42.3 milliliters of a gas at 98.15°C. Determine the volume that the gas will occupy if the temperature is
    8·1 answer
  • A homogeneous mixture is a composition of two or more
    9·1 answer
  • Predict the missing component in the nuclear equation.
    8·1 answer
  • 1. Which of these is a chemical property? *
    6·1 answer
  • Which phrase gives two processes scientists think move the Earth's lithospheric plates?
    7·2 answers
  • How is atom and molecules related to our sense of smell?
    7·2 answers
  • Select the correct answer. An adult human lung has a volume of 2. 9 liters. If its volume decreases to 1. 2 liters and it contai
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!