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
Inga [223]
3 years ago
11

PART I Phosphorous acid, H3PO3(aq), is a diprotic oxyacid that is an important compound in industry and agriculture. A flask con

tains 45 ml of H3PO3(aq) A titration is carried out and analysis of the data showed that the first equivalence point was reached after 33 ml of 0.50 M NaOH was added to the acid solution. Answer the following questions: What was the initial concentration in M of [H3PO3], the phosphorous acid solution
Chemistry
1 answer:
Zepler [3.9K]3 years ago
3 0
Use mv=mv formula to solve for h3po3
Given. 45ml h3po3 in a flask and the first equi point is 33ml of .5M NaOH
Plug in 33 * 0.5 M = 45 *x, where x is the concentration of h3po3, solve for x
You might be interested in
If 725 ml of N² gas is at 1 atm, what volume will it have at 1.4 atm?​
alexdok [17]

Answer:

518 mL

Explanation:

We can solve this using Boyle's Law Formula

P1V1 = P2V2

where p1 = initial pressure, p2 = final pressure, v1 = initial volume and v2 = final volume

here , the initial pressure is 1 atm and the initial volume is 725mL

we are given the final pressure 1.4 and we need to find the final volume

so we have p1v1 = p2v2

==> plug in p1 = 1 , v1 = 725 mL and p2 = 1.4

(1)(725) = (1.4)v2

==> multiply 1 and 725

725 = (1.4)(v2)

==> divide both sides by 1.4

v2 = 518

N2 would have a volume of 518mL at 1.4atm

7 0
3 years ago
Read 2 more answers
Joel has noticed that his engine is not compressing properly during the compression and ignition step. What problem will this po
denis-greek [22]

The answer is: The engine will run inefficiently APEX....

7 0
3 years ago
What is the chemical name for 1 nitrogen atom,<br> 2 hydrogen atom?
sasho [114]

NH3 has 1 Nitrogen atom and 3 hydrogen atoms.

5 0
3 years ago
what is the main difference between organisms that share many characteristics and organisms that do not
Anarel [89]
Organisms that share many derived characteristics are probably more closely related
8 0
3 years ago
The small bags of silica gel you often see in a new shoe box are placed there to control humidity. Despite its name, silica gel
Zinaida [17]

So we look equation for the free Gibbs free energy (ΔG) which depends on entalpy (ΔH), temperature (T) and entropy (ΔS):

ΔG = ΔH - TΔS

ΔG is negative (-) because the water absorption on the silica gel surface is a spontaneous process.

ΔH is negative (-) because the water absorption on the silica gel surface is a exothermic process (it releases heat and if you want to desorb the water form the silica gen you need to add heat which is a endothermic process).

ΔS is negative (-) because the water is adsorbed, so from disorderly state you take the water molecules and put them in a orderly state and by doing that you decrease the entropy.

6 0
3 years ago
Other questions:
  • Fe2O3(s) + 3CO(
    9·1 answer
  • Hydrofluoric acid (hf) is used to etch glass (sio2). the products of the reaction are silicon tetrafluoride and water. write the
    15·2 answers
  • Pure silver is an example of a(n) _____.
    13·2 answers
  • Consider the following balanced reaction. What mass (in g) of CO2 can be formed from 288 mg of H2CO3 → H2O CO2 A 14.01 g sample
    5·1 answer
  • What is the pressure of the ideal gas when the volume is decreased to 4.0 L and the temperature is increased to 265 K?
    5·1 answer
  • Describe the effect of cooling a gas in a container?
    9·1 answer
  • In general, agitation causes the dissolving rate of most solutes to:
    10·1 answer
  • The atomic mass and abundance of Cr-50 is 49.946 amu and 4.3%. The atomic mass and abundance of Cr-52 is 51.941 amu and 83.8%. T
    5·1 answer
  • si el calor fuese un fluido ¿en algun momento se agotaria después de que dos objetos se frotaran mutuamente?​
    7·1 answer
  • Describe the characteristics that identify a sample of matter as being a substance.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!