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
lozanna [386]
3 years ago
5

The pH of a 0.25 M (aq) solution of hydrofluoric acid, HF, at 25C is 2.03. What is the value of Ka for HF? Pls show all mathemat

ical calculations
Chemistry
1 answer:
Snezhnost [94]3 years ago
4 0

Answer:

Explanation:

b bhmj sjvkjwv

'

You might be interested in
Do plasmids have an importance beyond the practice of genetic engineering?
kozerog [31]
Answer: Yes

Explanation: Plasmids offer a number of unique characteristics that make genetic engineering much more efficient. Plasmids are a type of non-chromosomal DNA. Integrating DNA into a bacterial or other chromosome is far more complex than simply putting DNA into a cell; plasmids make it easier to transport DNA into a cell by eliminating this step.

4 0
2 years ago
a solution is made by completely dissolving 90. grams of kno3 in 100 grams of water in a beaker. the temperature of this solutio
jolli1 [7]
Pressure has no effect on the solubility of KNO3 in water. This is because it is solid in liquid type of solution. In solid in liquid type of solution, solid is solute (minor component), liquid is solvent (major component). For solid in liquid type of solutions, solubility is independent of pressure. 

On other hand, pressure has a pronounced effect on the solubility of gas in liquid type solutions. In such system, gas is solute (minor component) and liquid is solvent (major component). Example of such solution is aerated water. Herein, CO2 is dissolved in water. In such gas in liquid type of solutions, solubility increases with increasing pressure. 
3 0
3 years ago
1. Surface area, agitation, and ____ affect the dissolving rate of a solid. 1. termperature 2. location​
mamaluj [8]

Answer:??

Explanation:

3 0
2 years ago
Read 2 more answers
Milk of magnesia, a suspension of mg(oh)2 in water, reacts with stomach acid (hcl) in a neutralization reaction. mg(oh)2(s) + 2
defon
Balanced equation for the above reaction is as follows;
Mg(OH)₂ + 2HCl ---> MgCl₂ + 2H₂O
stoichiometry of Mg(OH)₂ to MgCl₂ is 1:1
mass of Mg(OH)₂ reacted - 1.82 g
number of moles of Mg(OH)₂  - 1.82 g/ 58.3 g/mol = 0.0312 mol
number of Mg(OH)₂  moles reacted - number of MgCl₂ moles formed 
number of MgCl₂ moles formed - 0.0312 mol
mass of MgCl₂ formed - 0.0312 mol x 95.2 g/mol = 2.97 g
mass of MgCl₂ formed - 2.97 g

5 0
3 years ago
PLEASE HELP! sketch the structure of the nitrogen-containing product that is formed when ethylamine reacts with water​
Aleksandr [31]

First of all the ethylamine is base so will be react with water to take the proton from the water (H⁺) , because water is amphoteric will react with bases as acid and acids as a base, so the water in this case will react as an acid and will gives the proton to the base.

In the picture you may see the chemical equation and the structure of the products.

5 0
3 years ago
Other questions:
  • When water becomes ice, the molecules spread out to form a specific shape. What determines this shape?
    7·1 answer
  • Describe how iron and sulfur can be an element, mixture, and a compound.
    15·1 answer
  • Given the following data:N2(g) + O2(g)→ 2NO(g), ΔH=+180.7kJ2NO(g) + O2(g)→ 2NO2(g), ΔH=−113.1kJ2N2O(g) → 2N2(g) + O2(g), ΔH=−163
    14·1 answer
  • Mg(OH)2 + 2 HBr à MgBr2 + 2 H2O
    6·1 answer
  • ¿Qué tipos de contaminantes identificamos?¿cuál de ellos tiene mayor concentración de los gases?¿Qué sucedió con la calidad del
    12·1 answer
  • Brainliest get's +20 points!
    6·1 answer
  • A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4
    10·1 answer
  • 1. What is the molarity of a solution which contains 0.256 mol of a substance dissolved in 143 mL of solution.
    12·1 answer
  • The conversion of glucose to lactic acid is called:
    12·2 answers
  • What happens when an electron jumps energy from energy level 3 energy level 6 in an atom
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!