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
IrinaVladis [17]
3 years ago
7

A 25.00-mL sample of an H2SO4 solution of unknown concentration is titrated with a 0.1322 M KOH solution. A volume of 41.22 mL o

f KOH is required to reach the equivalence point. What is the concentration of the unknown H2SO4 solution?
Chemistry
1 answer:
NISA [10]3 years ago
4 0

<u>Answer:</u> The concentration of H_2SO_4 comes out to be 0.109 M.

<u>Explanation:</u>

To calculate the concentration of acid, we use the equation given y 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 H_2SO_4

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

We are given:

n_1=2\\M_1=?M\\V_1=25.00mL\\n_2=1\\M_2=0.1322M\\V_2=41.22mL

Putting values in above equation, we get:

2\times M_1\times 25=1\times 0.1322\times 41.22\\\\M_1=0.109M

Hence, the concentration of H_2SO_4 comes out to be 0.109 M

You might be interested in
Calculate the ΔG for the following system. Then state if the system is spontaneous or not spontaneous. ΔH = 147 kJ ΔS = -67.0 J/
lbvjy [14]

Answer:

ΔG for the given system is 28.421 kJ. The system is non spontaneous.

Explanation:

ΔH = 147 kJ =147,000 J= Enthalpy of the system

ΔS = -67.0 J/K = Entropy change

T = 149 °C = 422.15 K = Temperature of the system

((T)°C=273.15 +T K)

ΔG = Gibbs free energy ?

The Gibbs free energy 's expression is given by:

ΔG = ΔH  - T ΔS

  • ΔG > 0 , non spontaneous
  • ΔG < 0, spontaneous

\Delta G^o=147,000 J-422.15 K\times (-67.0)

ΔG = 28,421 J = 28.421 kJ

Since, value of Gibbs free energy is positive this means that reaction is non spontaneous.

5 0
3 years ago
The cumulative impacts of social vulnerability, environmental exposure inequalities, and biological/physiological susceptibility
Harman [31]

Health disparities

When there are social inequalities in the places where people live, work, learn, and play, environmental factors can contribute to disease and health disparities.

These social injustices, also known as social determinants of health, include disparities in people's behaviors, cultural influences, access to healthcare, economic status, and literacy levels. When social injustices and poor environmental quality are present together, communities are said to have environmental health disparities when they experience higher rates of illness and disease than wealthier, less polluted communities.

Environmental hazards and social conditions must be taken into consideration in order to eliminate disparities in environmental health.

Find more on social inequalities at : brainly.com/question/10159402

#SPJ4

8 0
1 year ago
Oil floats on the surface of water but mercury sinks. why?​
andrew-mc [135]

Answer:

Because if the object weighs more than the volume when it is placed in the water it will sink. If this object weighs less than the volume of water, it will float. This depends mostly on the type of item.

8 0
3 years ago
What does it mean to tare a balance and why do you think it is important to complete this before you begin measuring mass?
aev [14]

Answer:

allows for you to account for only the weight of the substance being measured and not the vessel it’s being measured in.

Explanation:

What does it mean to tare a balance and why do you think it is important to complete this before you begin measuring mass? Explanation: The term tare is used when weighing chemicals on a balance, using the tare button allows for you to account for only the weight of the substance being measured and not the vessel it’s being measured in.

6 0
2 years ago
Read 2 more answers
Help, cant get it. Answers in picture
Aleks04 [339]

Answer:17.0

Explanation:

8 0
3 years ago
Other questions:
  • How do you determine the possible quantum numbers for an atom?
    9·1 answer
  • Which statement holds true when the molar mass of hydrogen is 2.0 grams and that of helium is 4.0 grams? Hydrogen effuses 1.4 ti
    8·1 answer
  • Describe a procedure to separate a mixture of sugar, black pepper, and pebbles.
    12·1 answer
  • The chemical reactions between limestone and acid in the groundwater form. A) geysers B) wetlands C) volcanoes D) sinkholes ​
    8·2 answers
  • What evidence lead rutherford to propose that the atom had a nucleus?
    10·1 answer
  • What type of chemical replacement is RbNO3 + BeF2 →Be(NO3)2 + RbF
    14·1 answer
  • Draw the product or products that are obtained from the reaction of HCl with 1-butene and with 2-butene. Show the relative stere
    14·1 answer
  • (d) Calculate the relative molecular mass of ammonium sulphate (NH4)2SO4.5H2O
    9·1 answer
  • Compuesto organico que no existe como alqueno ni alquino?
    12·1 answer
  • What is the pH of a 8.4x10⁻6 M H+solution?<br> What is pH?<br><br> pH=[?]
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!