To determine the pH of the solution, we first need to calculate the concentration of the resulting solution after the reaction between NH4Cl and NaOH.
The balanced chemical equation for the reaction is:
NH4Cl + NaOH → NaCl + NH3 + H2O
From the equation, we can see that NH4Cl reacts with NaOH to form NaCl, NH3, and H2O.
The NH3 produced will react with water to form NH4+ and OH- ions. Therefore, the resulting solution will contain NH4+, Cl-, Na+, and OH- ions.
To calculate the concentration of NH4+ and OH- ions, we need to use the following equations:
[tex]NH4Cl → NH4+ + Cl-[/tex]
[tex]NaOH → Na+ + OH-[/tex]
The NH4+ and OH- ions will react according to the following equation:
[tex]NH4+ + OH- → NH3 + H2O[/tex]
We can use the initial concentrations of NH4Cl and NaOH to calculate the concentration of NH4+ and OH- ions in the resulting solution:
[ NH4+ ] = 0.12 mol/L
[ OH- ] = 0.03 mol/L
To calculate the pH, we need to determine the concentration of H+ ions in the solution. Since NH4+ is a weak acid, it will undergo partial dissociation according to the following equation:
[tex]NH4+ + H2O ↔ NH3 + H3O+[/tex]
The equilibrium constant expression for this reaction is:
Ka = [ NH3 ][ H3O+ ] / [ NH4+ ]
Since NH4+ is the limiting reactant, we can assume that all of the NH4+ ions will react to form NH3 and H3O+ ions. Therefore, the concentration of NH3 and H3O+ ions will be equal to [ NH4+ ].
[ NH3 ] = [ NH4+ ] = 0.12 mol/L
Substituting the values into the equilibrium constant expression and solving for [ H3O+ ], we get:
[tex]Ka = 5.6 × 10^-10[/tex]
[tex][ H3O+ ] = sqrt( Ka × [ NH4+ ] ) = 1.34 × 10^-6 mol/L[/tex]
pH = -log [ H3O+ ] = -log ( 1.34 × 10^-6 ) = 5.87
Therefore, the pH of the solution is 5.87.
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How many electrons are needed in the outer energy levels of most atoms to be chemically stable?
Answer:
8 electrons
Explanation:
The density of water H20 is bout 1 g/ml. If u have a bottled water that is 500 ml how many grams is this
Answer:
500 grams
Explanation:
500 milliliters x 1 gram per millileter = 500 grams.
Why is red tide dangerous to ocean animals?
Answer:
Karenia brevis produces toxins called brevetoxins that affect a variety of marine wildlife. Aquatic organisms can be exposed to brevetoxins in several ways: coming into contact with K. brevis cells or toxins in the water, ingesting cells, inhaling toxins and consuming toxic prey.
Explanation:
Increasing an airplane's speed or wing size does which of the following? O A. Creates a sonic boom B. Generates more lifting force O C. Increases the gravitational pull on the plane D. Decreases the amount of drag acting on the plane SUBMIT
Answer: B: generates more lifting force.... just got it correct
Explanation:
Answer:
B. Generates more lifting force
Explanation:
i took the quiz on Ap*x and it was correct
what conversion factor is needed to calculate the number of atoms in 8.6 moles of Aluminum?
A. 1 mole/ 6.02x10^23 atmos
B. 6.02X10^23 atoms/ 1 mole
C. 1 mole/ 26.98zg
D. 26.982g/ 1 mole
Answer:hey did you ever get an answer? I need it for this exam
Explanation:
how much empty space was there in the medium-sized rock sample
Answer:
I'm assuming this is from a lab that you did - in which case, I can't really help you out here.
Explanation:
Plants cells also gain energy through cellular respiration.
True or false?
Answer:
true
Explanation:
In the lab, you are given a metal ball. You measure the mass of the ball to be 28 g. You place the ball in a graduated cylinder and the water level increases from 28.2 mL to 31.4 mL. What is the density of the metal ball? (round you answer to the nearest hundredth)
Answer:
Density = 8.75ml
Explanation:
Density = Mass / Volume
In this problem ...
Mass = 28 grams
Volume = 31.4ml - 28.2ml = 32ml (water displacement also)
∴Density = mass /volume = 28g/32ml = 8.75g/ml
Please help
according to the ____ rule, elements tend to react until they have the same electron configuration as a _____. _____, found on the left of the _____, tend to lose electrons and from ____. _____ tend gain electrons to form _____.
Answer:
What chapter is this and what grade are you, i can check this for you
Explanation:
How many atoms would you find in 3.60 g of Boron?
Answer:
1.8 * 10^24 atoms
Explanation:
n = M(B) / m = 10.8 / 3.60 = 3 mol
N = n * Na = 3 * 6*10^23 = 1.8 * 10^24 atoms
Given a 6.80 g sample of H2O how many grams of oxygen is produced assuming the decomposition goes to completion
Answer:
6.0444g
the formula must be after balancingknown as 36(mass) of H2O can produce 32(mass) of O2so 6.80g of H2O can produce (x)g of oxygenAccording to the stoichiometry of the decomposition of water 6.04 grams of oxygen is produced assuming the decomposition goes to completion.
What is stoichiometry?Stoichiometry is defined as the determination of proportions of elements or compounds which are present in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.
Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.It is useful in balancing chemical equations.According to the reaction, 36 g water gives 32 g oxygen thus 6.80 g water will give 6.80×32/36=6.04 g.
Thus, on decomposition of water 6.04 grams of oxygen is produced assuming the decomposition goes to completion.
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what is an accurate description of a period in the periodic table
Answer:
The periods of the periodic table are the horizontal rows.
Explanation:
Answer:
period is a horizontal row of the periodic table
Explanation:
A period in the periodic table is a row of chemical elements. All elements in a row have the same number of electron shells. Each next element in a period has one more proton and is less metallic than its predecessor
Feel free o copy and paste
Describe what happens when a. piece of potassium is dropped into a trough of water coloured with red litmus.
Pls help,it's urgent!!!
Answer:
✔
Explanation:
A 4 feet tall student went summing pool. He saw depth of water in pool less than 4 feet.Will he drowned.Write reason
Answer:
Question says , the height of the student = 4 feet, ... This means, if the student goes for swimming in the pool, however he does not know swimming, he will not be drowned until he is suffering from an injury or external force.
What is the proper name for the chemical formula Cl4O5?
Answer:
Carbon tetraiodide
Explanation:
let me know if it works
Can someone please explain to me what a Ecologist does for a living? (Or daily in their career?)
ecologists look at relationships between nature, studying the interactions between humans, animal and plants.
Answer:
Ecologists focus on the relationship of organisms within their environment. Ecology is a branch of biology (biology is the study of life). Given the broad scope of ecology, there are multiple sub-disciplines that an ecologist can choose to focus on. Since all living things (plants, animals, microbes) depend on other living things and a healthy environment to survive, ecologists may specialize in one aspect of an ecosystem. Examples include terrestrial (land), aquatic (water), applied (concepts and principles of ecology), conversation (management of biodiversity), and evolutionary (evolution).
Explanation:
Brainliest plz
What category of organisms makes up the largest percent of the the fossils discovered? A. Land animals B. Marine animals C. Microorganisms
Answer:
Marine animals
Explanation:
A fossil is any remains of ancient life. Fossils can be body fossils, which are remains of the organism itself or trace fossils, such as burrows, tracks, or other evidence of activity(Lumen Learning).
Fossils of land animals are less common because they may not have been buried. However, land organisms may become buried underneath by mudslides or ash from a volcanic eruption, or covered by sand in a sandstorm.
Marine fossils are more common owing to quick burial. Marine animals that die near a river delta may be buried by sediment carried by the river. A storm at sea may shift sediment on the ocean floor, covering and helping to preserve skeletal remains(Lumen Learning).
What type of weathering occurs when acid rain changes rocks? A. erosion
B. deposition C. chemical weathering D. physical weathering
Answer:
c...................................
What does it mean if a solution is a "weak acid "? Strong acid? Give logical ph values for each
Answer:
A weak acid is an acid that partially dissociates into its ions in an aqueous solution or water. In contrast, a strong acid fully dissociates into its ions in water. At the same concentration, weak acids have a higher pH value than strong acids.
Explanation:
:)
i need help writing a LAB REPORT about NATURAL SELECTION
(plus i don’t know what exact subject it is so i’m sorry if it’s the wrong subject)
Answer:
Translate from Ukrainian.
У цей приклад я візьму селекції пшениці. Коли ми будемо говорити про селекцію цього злака, то ми можемо отримати меньшу собівартість, та вартість вирощування. Збільшена урожайність, та менша потреба в гербіцидах, пестицидах, та інсектицидах це теж наслідок. Тому селекція це майбутнє!
If you tested two samples of a particular pure substance, what would you find?
Answer:
The properties of a pure substance can be used to determine whether a sample is a pure substance or mixture because the characteristic properties of matter can be used to identify a sample. The result is a mixture called a composite.
Explanation:
Pure substances contains their own molecules only and not any impurity. Thus, when we tested it only shows the properties of its own.
What are pure substances?Pure substances are substances containing its pure composition without any impurities. For example water, fruits, acids etc. are pure substances and they does not have a combination other substances.
Mixtures are the combination of two or more pure substances, and the can be heterogenous or homogenous. Whereas, pure substances homogenous only thus forming only one phase.
When we tested mixtures qualitatively, they shows the properties of each individual components in it. Whereas, pure substances give inly its own characteristics.
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BRAINLIST!!
Water often has dissolved gases and other chemicals in it. When this water encounters rocks, the minerals in the rocks can be changed by the process of
A.
deposition
B.
erosion
C.
sedimentary mineralization
D.
chemical weathering.
1. How many moles does 24 g of Mg contain?
Explanation:
1 mole Of atom = GAM
MG=24g
GAM of Mg=24g
Therefore 24g=mole
Not My answer But I saw That You needed it.
Credit zeeshanfazil
thank him for the answer!
Is it okay if you help me? I'm kind of in a tight spot here. Tysmmmmmmmmmmmmm o(❁´◡`❁)o!!
Answer:
C. Remains constant
Explanation:
Hope this helps (:
Two students conduct the same experiment, but they get different results. What should the students do next?A.The students should check their procedure and tools for sources of error. B.Both students should throw out their data and start over. C.The students should compare data with other students and then use the data from the student who was closest to the rest of the class. D.The students should find the average of each data set and each report the average data.
Answer:
A.The students should check their procedure and tools for sources of error.
Explanation:
Answer:
I think it A
Explanation:
What is the acceleration due to gravity at Earth's surface?
Answer:
9.8 m/s2
Explanation:
That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2.
What is the boiling point for butane?
Answer:
30.2°F
Explanation:
Butane, the liquid that can be seen inside a transparent lighter, boils at a temperature slightly under the point at which water freezes. So why doesn't the butane in the lighter boil? Butane does indeed boil at about a degree below 32 degrees Fahrenheit, but this is true only at normal atmospheric pressure. (:
What type of heat transfer causes the water in the bottom of the pool to be cooler and the water at the top to be warm?
Answer:
i think its convection
Explanation:
Identify the type of intermolecular force for water, vegetable oil, and corn syrup.
Answer:
Intermolecular force for oil the dipole-dipole.
Intermolecular force for water hydrogen bonds.
Intermolecular force for vegetable oil nonpolar compound.
Intermolecular force for corn syrup fructose.
Write the word and balanced chemical equations for the reaction between:
Aluminum + iron sulfate
Explanation:
Aluminium - Al
Iron Sulfate - FeSO4
The reaction is given as;
Al + FeSO₄ --> Al₂ (SO₄) ₃ + Fe
The balanced equation is given as;
2 Al + 3 FeSO₄ --> Al₂ (SO₄) ₃ + 3 Fe
In words it is given as;
Aluminium + Iron Sulfate --> Aluminium Sulfate + Iron