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
loris [4]
3 years ago
13

The ph of a 0.55 m aqueous solution of hypobromous acid, hbro, at 25.0 °c is 4.48. what is the value of ka for hbro?

Chemistry
1 answer:
gladu [14]3 years ago
6 0
Hbro  dissociate  as  follows
HBro--->  H+  +  BrO-
  Ka=  (H+)(BrO-)  /  HBro
 PH  =  -log (H+)
therefore (H+)  =  10^-4.48= 3.31  x10^-5
ka is  therefore= ( 3.31  x 10^-5)^2/0.55=1.99  x10^-9
You might be interested in
A rigid 3.80 L sealed vessel contains 0.650 mol Ne, 0.321 mol Kr, and 0.190 mol Xe. Find the density of the mixture in g/L.
Eddi Din [679]

Answer:

17.09g/L

Explanation:

Density = total mass of elements/ volume

We need to find the mass of each mixture constituents using their molar mass:

mole = mass/molar mass

For Neon (Ne) which contains 0.650mol;

0.650 = mass/20.18

mass = 0.650 × 20.18

mass = 13.12g

For Krypton (Kr) which contains 0.321mol;

0.321 = mass/83.79

mass = 0.321 × 83.79

mass = 26.89g

For Xenon (Xe) which contains 0.190mol;

0.190 = mass/131.3

mass = 0.190 × 131.3

mass = 24.95g

Total mass = 13.12g + 26.89g + 24.95g = 64.96g

Density = total mass / volume

Density = 64.96g / 3.80L

Density of the mixture = 17.09g/L

7 0
3 years ago
2. The smaller numbers in the image below
ahrayia [7]

Explanation:

The smaller numbers in the image below represents the <u>subscripts</u>.

3 0
3 years ago
How can graphs be interpreted
iragen [17]

To interpret a graph or chart, read the title, look at the key, read the labels. Then study the graph to understand what it shows. Read the title of the graph or chart. The title tells what information is being displayed.

Hope this helps

get a good grade :)

7 0
3 years ago
PLEASE HELP!
jok3333 [9.3K]

Answer: due to the nature and complexity of some documents, an accessible version of the ... 1. Grade 6 Science Learning Activity. Ocean, Atmosphere, & Climate Unit ... We started this unit by making initial claims about why Christchurch's air ... Ocean currents move in the same direction as the prevailing wind in some places in the.

Explanation:Ocean water is on the move, affecting your climate, your local ecosystem, and the ... Map of temperature of the North Atlantic Ocean shows the warm Gulf Stream current along the. Winds, water density, and tides all drive ocean currents. ... much of Northern Europe significantly warmer than other places equally as far north.

8 0
3 years ago
Can i get a snap i could send a link to, to do a few chem 1 assignments i could award more points
Colt1911 [192]

Answer:The FitnessGram PACER Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The test is used to measure a student's aerobic capacity as part of the FitnessGram assessment. Students run back and forth as many times as they can, each lap signaled by a beep sound.

Explanation:

4 0
3 years ago
Other questions:
  • ]Which of the following describes the arrangement of particles in plasma?The particles are ionized and move independently of eac
    10·2 answers
  • (02.03 MC)
    12·1 answer
  • Select all the correct locations.
    6·2 answers
  • Which of these will change if the air in a
    14·1 answer
  • What word is used to describe the electrodes used in electrolysis that do not react?
    12·1 answer
  • Get ready for the wave of screenshots :&gt;
    11·2 answers
  • To arrive at the number of hydrogen atoms, What can be said about the relationship between the number of hydrogen atoms and the
    6·1 answer
  • 3. What do the most abundant elements in Earth's atmosphere have in common?​
    10·1 answer
  • A teacher places a cup of coffee onto an electronic balance at the front of the science laboratory. The teacher then adds three
    13·2 answers
  • Given the reaction below, if 0.003 g of carbon dioxide is used up, how many grams of oxygen will be produced? (show work)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!