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
Nimfa-mama [501]
3 years ago
6

The reaction of sulfuric acid (H2SO4) with potassium hydroxide (KOH) is described by the equation below. Suppose 0.05 L of KOH w

ith unknown concentration is placed in a flask with bromthymol blue indicator. A solution of 0.10 M H2SO4 is dripped into the KOH solution. After exactly 0.033 L of H2SO4 is added, the indicator changes from blue to yellow. What is the concentration of the KOH.
H2SO4+2KOH--->K2SO4+2H2O
Chemistry
2 answers:
Dmitry_Shevchenko [17]3 years ago
7 0

chem eqn is H2SO4+2KOH--->K2SO4+2H2O

1x H2SO4 reacts with 2x KOH

0.033L of 0.10M H2SO4 has 0.033 x 0.10 = 0.0033 moles

2x 0.0033 = 0.0066 moles of KOH

conc of KOH = moles/vol = 0.0066/0.05

=0.132M

strojnjashka [21]3 years ago
3 0

From the chemical equation given:

H2SO4+2KOH--->K2SO4+2H2O

the two reactants, H2SO4 and KOH, are in 1:2 stoichiometric ratio.

No. of moles of KOH = 2* no. of moles of H2SO4

=2*0.1*0.033

The concentration of KOH = no. of moles / volume

=2*0.1*0.033/0.05

=0.132M

You might be interested in
An adult mosquitoes lifespan is about 16 days how many minutes is that
Delicious77 [7]
1 day = 1, 440 minutes
16 days = (1, 440 × 16) days = 23, 040 minutes
5 0
3 years ago
Write the chemical equation for the dissolution reaction of solid iron(iii) hydroxide in water. include the phases of all specie
Allushta [10]
When solid <span>iron (iii) hydroxide is dissolved into water, it ionizes or it dissociates into ions. These ions are the iron (iii) ions and the hydroxide ions. Iron(III) oxide is classified as a base when in aqueous solution since it produces hydroxide ions. It is a weak base so it does not completely dissociate into the solution. The dissociation equation would be:

Fe(OH)3 <-----> Fe3+ + OH-

To write a complete reaction, the reaction should be balanced wherein the number of atoms of each element in the reactant side and the product side should be equal. Also, the phases of the substances should be written. We do as follows:

</span>
Fe(OH)3 (s)  <-----> Fe3+ (aq) + 3OH- (aq)
4 0
3 years ago
Use what you know about relative dating to choose the correct answers from the drop-down menus. Ethan determines that layer B is
AURORKA [14]

Answer: yes

Explanation: no

5 0
2 years ago
Read 2 more answers
Review the table detailing the mass of Jupiter’s moons and their distance from the planet. Which of Jupiter’s moons has the grea
olga nikolaevna [1]

The correct answer is Lo.  

The gravitational force between the two components is directly equivalent to the product of their masses and is inversely proportional to the distance separated between them. The largest planet in the solar system is Jupiter. It comprises 75 moons, and out of these moons, the four Galilean moons are very big in mass. These are Lo, Europa, Ganymede, and Callisto.  

Of these Galilean moons, the Lo moon is very close to Jupiter. The Ganymede moon is the largest of all the Galilean moons, but it is situated very far from Jupiter in comparison to Lo. Thus, the force of attraction between the Lo and Jupiter is very high, it exhibits the greatest gravitational force with Jupiter.  

8 0
2 years ago
Write the complete balanced equation for the reaction that occurs when ch4 combusts in o2.
dusya [7]
CH4 + 2O2 ---> CO2 + 2H2O
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is not a concentration unit (a) 1 molar (b) 1 equivalent (c) 1% by mass (d) 1 molal
    6·1 answer
  • 1
    11·1 answer
  • Is the following reaction exothermic or endothermic? 2P + 5Cl2 → 2PCl5 ΔH°= - 886 kJ​
    14·1 answer
  • What elements are not balanced in the equation MgO + 2 LiCl = MgCl2 Li2O
    15·2 answers
  • What is the final product of transcription?
    7·1 answer
  • When light hits the Earth at a greater angle, what does this cause?​
    13·1 answer
  • Plz PLZ plz PLz Plz Plz Help Plz dont answer if you dont know thank you :)
    10·2 answers
  • ____ is the study of a reactions progress over a period of time.
    7·2 answers
  • plz help very many points so there better be an answer if u say i just need the points sorry i will report u.
    14·1 answer
  • Chemistry mixes 108 g of O2, with 232 L of C3Hg at STP. How many grams of H2O will be produced? The balanced equation for this r
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!