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
katrin [286]
3 years ago
8

What effect does the presence of dissolved sodium fluoride have on the dissociation equilibrium of hydrofluoric acid? (select al

l three that apply)...
The percent dissociation of HF is reduced by the presence of dissolved NaF.
THe pH of the solution containing NaF and HF would be higher than that of a solution of HF only.
The presence of NaF drives the reaction towards the HF side to reach equilibrium.
The concentration of H+ is higher in an HF solution containing NaF.
The pH of the solution containing NaF and HF would be lower than that of a solution of HF only.
The presence of the dissolved NaF does not affect the HF equilibrium reaction nor the equilibrium concentrations.
Chemistry
1 answer:
Illusion [34]3 years ago
4 0
The correct answer for the question that is being presented above is this one: "The pH of the solution containing NaF and HF would be lower than that of a solution of HF only.; <span>THe pH of the solution containing NaF and HF would be higher than that of a solution of HF only."</span>
You might be interested in
Air with less than 19.5% oxygen cannot support human life. How many moles of oxygen would the caisson if the percent of oxygen i
irinina [24]
Are we adding the percent?
8 0
3 years ago
If a 50.0 mL sample of gas exerts a pressure of 0.59 atm at 35.0 Celsius. What volume will the gas occupy at STP?
Rudik [331]

Explanation:

P1V1/T1 =P2V2/T2

V2 =P1V1T2/P2T1

0.59×0.05×273/1×308

V2 =0.03L

8 0
3 years ago
Oxygen gas is collected at a pressure of 123 kPa in a container which has a volume of 10.0L. What temperature must be maintained
Morgarella [4.7K]
Given:

P = 123 kPa
V = 10.0 L
n = 0.500 moles
T = ?

Assume that the gas ideally, thus, we can use the ideal gas equation:

PV = nRT

where R = 0.0821 L atm/mol K

123 kPa * 1 atm/101.325 kPa * 10.0 L = 0.500 moles * 0.0821 Latm/molK * T

solve for T 

T = 295.72 K<span />
5 0
4 years ago
Read 2 more answers
I NEED HELP ASAP! :)
cluponka [151]

Answer:

When adding the measurements 42.1014g + 190.5g, the answer has<u> </u><u>seven </u>significant figures.

When dividing the measurements 400g/32.2 cm^3, the answer has <u>ten</u> significant figures.

Explanation:

7 0
3 years ago
I don’t know how to do this chemistry assessment over empirical formula
hichkok12 [17]

Answer:

Explanation:

Step 1: Obtain the mass of each element present in grams. Element % = mass in g = m.

Step 2: Determine the number of moles of each type of atom present. ...

Step 3: Divide the number of moles of each element by the smallest number of moles. ...

Step 4: Convert numbers to whole numbers.

3 0
3 years ago
Other questions:
  • Which of the following is most likely to happen if the cell membrane does not function properly?
    7·2 answers
  • DEFINE THESE WORDS FOR A TON OF POINTS!!!!!!!
    13·1 answer
  • How can trace fossils provide info on how the organism lived
    9·1 answer
  • Ammonia is prepared industrially by the reaction:
    5·1 answer
  • What is the charge on an electron?
    12·2 answers
  • Fluorine is diatomic element. What is the number of molecules in 10 moles<br> of fluorine gas?
    6·2 answers
  • Describe how the composition of the upper mantle is different from the lower mantle?
    9·2 answers
  • Which formula represents an ionic compound?1) NO2) KCl3) HCl4) CO2
    14·1 answer
  • Why does liquid move like it does when heated on the right side?
    15·1 answer
  • How does the hard corals make their skeleton from seawater?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!