Arrange the following 0.10 MM solutions in order of increasing acidity: (i) NH4NO3NH4NO3, (ii) NaNO3NaNO3, (iii) CH3COONH4CH3COONH4, (iv) NaFNaF, (v) CH3COONa
Answers
The order increasing acidity of the solutions is; CH3COONa ≈ NaF < CH3COONH4 < NH4NO3.
An acidic solution is one whose pH lies between 0 to 6. A salt that undergoes hydrolysis to give an acid will have an acidic pH. Let us now consider the solutions to know which of them will give an acid solution.
- The salt NH4NO3 will give an acid solution because its hydrolysis yields nitric acid
- The salt CH3COONH4 yields a neutral solution
- The salt NaF yields a basic solution because its hydrolysis yields NaOH.
- The salt CH3COONa yields a basic solution since its hydrolysis yields NaOH.
The order increasing acidity of the solutions is; CH3COONa ≈ NaF < CH3COONH4 < NH4NO3.
Learn more: brainly.com/question/9743981
Answer:
The answer to the question is
In order of increasing acidity, we have
CH3COONa→NaF→NaNO3→CH3COONH4→NH4NO3
Explanation:
(i) NH4NO3 is an acidic salt as it consists of NH₃ and HNO₃. NH₃ is a weak base and HNO₃ is a strong acid pH = 5.4
(ii) NaNO3 PH7 produces a neutral solution when dissolved in water
(iii) CH3COONH4 Very concentrated solutions are acidic while low concentration 0.5 M are neutral, pH = 7
(iv) NaF basic as it is formed from weak acid and strong base. The strength of the basicity depends on the solution pH 7.4
(v) CH3COONa Basic in small concentration pH 8 or 9
Therefore we have in order of increasing acidity, CH3COONa→NaF→NaNO3→CH3COONH4→NH4NO3
Related Questions
How would a flood be a limitation for synthetic polymers that rely on natural rubber in its production?
Why do olive oil and vinegar (a water-based solution) tend to separate in salad dressing? will added salt dissolve in the oil or in the vinegar? explain your answer?
Which change in oxidation number indicates oxidation?(1) –1 to +2 (3) +2 to –3(2) –1 to –2 (4) +3 to +2
Your mom is playing the drums in the basement. Whenever she hits the drum with all her force, the box next to the drums shakes, rattles and almost rolls. What is occurring? A frequency B diffraction C resonance D interference
Answers
Answer: physical change
Explanation:
A physical change is defined as a change in which there is alteration in shape, size etc. No new substance gets formed in these changes
Example: Melting of ice
A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these changes.
Example: Corrosion of iron called as rusting.
Thus when the metal wire in an incandescent light bulb glows when the light is switched on and stops flowing when it is switched off is just a physical change as there is no change in chemical composition.
Answers
Cl is chlorine. Since their is 5 of chlorine, we call it pentachloride. Penta means 5, as in the shape PENTAgon.
Compound Name: Phosphorus pentachloride
We can see here that the compound with the formula, is called phosphorus pentachloride.
What is a compound?
A compound is a substance that consists of two or more different elements chemically bonded together in fixed proportions. In a compound, the constituent elements lose their individual properties and form new chemical properties unique to the compound.
The study of compounds is central to chemistry, as it involves understanding the structure, composition, and reactivity of substances. Compound analysis and synthesis play vital roles in various scientific fields, such as materials science, pharmaceuticals, and environmental science.
Learn more about compound on brainly.com/question/14782984
#SPJ6
B. metalloids
C. non-metals
Answers
The correct answer is C. Non-metals
Explanation:
Krypton is one of the 118 chemical elements that have been identified. Krypton's main characteristics include lack of odor, color, and low reactivity, due to this, this element is classified as a noble gas and in the periodic table is part of the Group 18. Moreover, Krypton is part of the non-metals category that includes elements with low density, melting/boiling point, and conductivity, which are all features exhibit by Krypton as this has low electricity and heat conductivity, low density, low melting point (around -157 °C) and low boiling point (-153 °C). Thus, the category Krypton gas and in general Krypton belongs to is non-metals.
An element is a pure substance made up of only one kind of atom, each of whose nuclei contains the same amount of protons. A substance whose atoms all contain the same number of protons is said to constitute an element; alternatively, all the atoms of a certain element must contain the same number of protons. Here 'Kr' is a non-metal. The correct option is C.
The elements that absorb or gain electrons to generate negative ions are known as non-metals. In their outermost shell, non-metals often have 4, 5, 6, or 7 electrons. High electronegativities are seen in non-metals. This indicates that non-metal atoms exhibit a significant propensity to attract more electrons than they would ordinarily have.
Krypton is a Group 18 rare gas and chemical element with the atomic number 36 and the symbol Kr.
Thus the correct option is C.
To know more about non-metals, visit;
#SPJ6
Answers
Answer: the percentage of acetic acid will be low.
Explanation: The major aim during titration of acids and bases is to determine the endpoint , that is exact point where the acid in the beaker changes colour, (in this case, pink )with an additional drop from the burette containing the base, since it is usually difficult to mark the equivalence point that tells us when all the substrate in the beaker has been neutralized completely with the buretted substance.
Overshooting the end point is an error which can occur when the person involved in the the titration accidently goes beyond this endpoint by adding too much of the substance(base) from the burette into the beaker missing the exact endpoint.
This implies that the person has added too much of the burreted liquid, ie the base than required , making the acid in the beaker to continue to react resulting to a lower concentration of the acid (acetic acid) with excess base.(NaOH)
Answers
Answers
Negative phototropism in plants refers to the growth response of plant parts away from a light source. The part of a plant most likely to show negative phototropism is the roots.
Negative phototropism in plants refers to the growth response of plant parts away from a light source. This means that the plant part will grow in a direction where it receives less light.
Roots typically exhibit negative phototropism because they grow away from light sources. This behavior is advantageous for roots because they need to grow deeper into the soil to seek water, nutrients, and stability. By growing away from light, roots are guided towards a more favorable environment for their functions. In contrast, other parts of the plant, such as stems and leaves, often exhibit positive phototropism, where they grow towards light to optimize photosynthesis and energy production.
Learn more about phototropism from the link given below.
#SPJ12
Final answer:
The root of a plant is the part that is most likely to show negative phototropism.
Explanation:
The part of a plant that is most likely to show negative phototropism is the root.
Phototropism is the growth response of a plant to light, and negative phototropism means the plant grows away from the light.
The root grows downwards into the soil, away from the light, in order to anchor the plant and absorb water and nutrients.
Learn more about Phototropism here:
#SPJ11