The net ionic equation for the reaction between aqueous solutions of potassium hypochlorite and nitric acid is NO₃⁻ + K⁺ → KNO₃.
What is net ionic equation?The net ionic equation is a chemical equation that determines which ions are involved in the final product's creation.
Chemical reaction will be represented as:
HNO₃(aq) + KClO(aq) → KNO₃(s) + HClO(aq)
Ionic equation for the above reaction will be represented as:
H⁺ + NO₃⁻ + K⁺ + ClO⁻ → KNO₃ + H⁺ + ClO⁻
In the above equation H⁺ and ClO⁻ are the spectator ions, so the net ionic equation of the given chemical reaction is:
NO₃⁻ + K⁺ → KNO₃
Hence net ionic equation for the given reaction is NO₃⁻ + K⁺ → KNO₃.
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Which metals will dissolve in nitric acid but not hydrochloric
The metal that can react and dissolve in nitric oxide but not in HCl is copper.
What is reactivity series?The reactivity series is given as the arrangement of the metals in the descending order of their reactivity.
The HCl is able to dissolve the metals that have reactivity less than the hydrogen. Nitric oxide is a strong oxidizing agent and has the ability to react with metals such as copper and oxidizes it.
The HCl is however unable to react with copper as it has high reactivity than hydrogen. Thus, copper can dissolve in nitric oxide, but not in HCl.
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How do your eyes, ears, nose, tongue, and skin send information to your brain?
They send signals through the blood.
They send signals through the nerves.
Each sends messages in a different way.
They send molecules through the air.
Answer:
they send signals through the nerves. through sensory receptors to be specific
Determine the oxidation number of chromium (cr) in each of the following compounds. (1) cro2 4 (2) cr2o72− 6 (3) cr2(so4)3 −3
The oxidation number of chromium (Cr) in CrO₂, Cr₂O₇²⁻ and Cr₂(SO₄)₃³⁻ is +4, +6 and +1.5 respectively.
What is oxidation number?Oxidation number of any compound gives idea about the number of exchangeable electrons from the outer most shell of an atom.
CrO₂Let the oxidation state of chromium is x and charge on the whole molecule is zero, so it will be calculated as:
x + 2(-2) = 0
x - 4 = 0
x = +4
Cr₂O₇²⁻Let the oxidation state of chromium is x and charge on the whole molecule is -2, so it will be calculated as:
2x + 7(-2) = -2
2x - 14 = -2
2x = 12
x = +6
Cr₂(SO₄)₃³⁻Let the oxidation state of chromium is x and charge on the whole molecule is -3, so it will be calculated as:
2x + 3(-2) = -3
2x - 6 = -3
2x = 3
x = +1.5 (which is impossible)
Hence oxidation state of chromium atom in CrO₂, Cr₂O₇²⁻ and Cr₂(SO₄)₃³⁻ is +4, +6 and +1.5 respectively.
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The triple point of nitrogen occurs at a temperature of 63.1 K and a pressure of 0.127 atm. Its normal boiling point is 77.4 K. (a) What is the vapor pressure of solid nitrogen at 63.1 K
Nitrogen has a normal boiling point of 77.4 K and a melting point (at 1 atm) of 63.2 K. Its critical temperature is 126.2 K, and its critical pressure is 2.55 * 104 torr. It has a triple point at 63.1 K and 94.0 torr.
What is the triple point?The temperature and pressure at which the solid, liquid, and vapour phases of a pure substance can coexist in equilibrium.
- Normal melting point: 63.2 K.
- Normal boiling point: 77.4 K.
- Triple point: 0.127 atm and 63.1 K.
- Critical point: 33.5 atm and 126.0 K.
In such a way:
- N2 does not exist as a liquid at pressures below 0.127 atm: that is because below this point, solid N2 exists only (triple point).
- N2 is a solid at 16.7 atm and 56.5 K: that is because it is above the triple point, below the critical point and below the normal melting point.
- N2 is a liquid at 1.00 atm and 73.9 K: that is because it is above the triple point, below the critical point and below the normal boiling point.
- N2 is a gas at 0.127 atm and 84.0 K: that is because it is above the triple point temperature at the triple point pressure.
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What is the molarity of 0.25 moles of KBr dissolved into 250 ml of solution?
Answer: 1.0 M
Explanation:
250 mL = 0.25 L
molarity = (moles of solute)/(liters of solution) = 0.25/0.25 = 1.0 M
Ilver oxide decomposes to form silver metal and oxygen gas chemical formual
The chemical formula of decomposition of silver oxide to form silver metal and oxygen gas is 2Ag₂O ⇒ 4Ag + O₂.
What is decomposition reaction?Decomposition reaction are those reactions in which the compounds are breakdown into simpler form.
In the given reaction, the silver oxide is decomposing in silver and oxygen.
2Ag₂O ⇒ 4Ag + O₂.
Thus, the chemical formula of decomposition of silver oxide to form silver metal and oxygen gas is 2Ag₂O ⇒ 4Ag + O₂.
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Is salinity higher or lower near ice? EXPLAIN!
How many grams and moles contain:
a. 3.011 × 10^24 atoms CO².
b. 9.033 × 10^22 molecules N².
Answer:
A.3.011 x 10^24 atoms CO²
[tex] \overline{ \quad \quad \quad \quad\quad\quad\quad\quad\quad}[/tex]
hope it helps!
Grams of potassium chloride per 100 g of water (experimental) in the original solution. Show calculation
The mass of potassium chloride with solubility 253.9 g/mL present in 100 grams of solution is 25.4 grams.
What is concentration?Concentration is given as the quantity of the solute present in the solution. The water at 25 degrees Celsius has density of 0.9982 g/mL.
The mass of the 100 grams of water is given as:
[tex]\rm Density=\dfrac{mass}{volume}\\\\0.9982\;g/mol=\dfrac{100\;grams}{Volume}\\\\Volume=100.180\;mL[/tex]
The solubility of potassium chloride is 253.9 g/mL
The grams of potassium chloride in the 100 grams solution will be:
[tex]\rm Mass\;of\;potassium\;chloride=\dfrac{253.9}{1000}\;\times\;100.81\;g\\\\Mass\;of\;potassium\;chloride=\25.4\;g[/tex]
Thus, the mass of potassium chloride present in 100 grams of water is 25.4 grams.
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Calculate after 2.00 y, 1.986 g of a radioisotope
remains from a sample that had an original mass of
2.000 g.
a. calculate the half-life.
b. how much of the radioisotope remains after 10.00 y?
Answer!
After 2 years, 1.986 g of a radioisotope material remains from a sample of the original mass of 2g, what is the half-life of the sample? - Radioactive decay occurs according to the formula:
A = A0 * exp(-ln(2) * t/T1/2)
The Original activity or mass A0 will decay to be A after time t where T1/2 is the decay time or half-life. If you fill in the values for A, A0 and t (= 2 years) you will end up with a value of approximately 188 years for the half-life.
Write a balanced equation for the combustion of 1 mol of c4h10o(l)
The combustion of diethyl ether gives releases of carbon dioxide gas along with the water.
What is combustion?Combustion is given as the reaction of the burning of the compound in the presence of oxygen.
The combustion results in the breakdown of the compound to its constituent ions or atoms. The reaction of combustion of [tex]\rm C_4H_1_0_O[/tex] is:
[tex]\rm C_4H_1_0_O\;(l)\;+\;6\;O_2\;(g)\;\rightarrow\;4\;CO_2\;(g)\;+\;5\;H_2O\;(l)[/tex]
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How much heat is required to change temperature of 10g of water from 4°C to 8°C? (Water has a specific heat of 4.18)?
0 J 167.2 J 165.4 J 160.2 J
Answer: 167.2 J
Explanation:
What are the basic units of matter?
electrons
atoms
protons
neutrons
Discussion the sn1 and sn2 substitution reactions. Haloalkanese
The SN₁ substitution reaction, in which the halogen is released from the haloalkane, and the nucleophile attacks the carbon's positive charge. SN₂ in which the nucleophile attacks the halogen's carbon, causing the halogen to be replaced in which nucleophile attack.
What is substitution reaction?
Substitution reactions are those reactions in which one functional group is replaced by another functional group.
Two types of substitution reactions can occur in haloalkanes: SN1 and SN2.
Thus, the SN₁ substitution reaction, in which the halogen is released from the haloalkane, and the nucleophile attacks the carbon's positive charge. SN₂ in which the nucleophile attacks the halogen's carbon, causing the halogen to be replaced in which nucleophile attack.
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Which quantity is equivalent to the product of the absolute index of refraction of water and the speed of light in water?
The quantity which is equivalent to the product of the absolute index of refraction of water and the speed of light in water system is the speed of light in vacuum.
What is the speed of light?Speed of light is the rate of speed though the light travels. To find the speed of light in any medium, the following formula is used.
[tex]v=\dfrac{c}{n}[/tex]
Here, (n) is the index of reaction and (c) is the speed of light in the vacuum. The speed of light in the vacuum is almost equal to the 3.0×10⁸ m/s.
Now the quantity which is equivalent to the product of the absolute index of refraction of water and the speed of light in water has to be find out.
The above formula can be written as,
[tex]v=\dfrac{c}{n}\\vn=c\\c=vn[/tex]
Here, the product of index of refraction and speed of light is equal to the speed of light in vacuum. This will be true for water as well.
Thus, the quantity which is equivalent to the product of the absolute index of refraction of water and the speed of light in water system is the speed of light in vacuum.
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22. Which of the following elements has the smallest electron affinity? A. carbon C. neon B, oxygen D. flourine
Answer:
carbon
Explanation: carbon is the answer
A 390 ml of aqueous solution prepared by dissolving 0.6 g of aluminum nitrate al(no3)3 in water, the concentration of nitrate ion (no3-) is __________m. the molar mass of al(no3)3 is 213 g/mol
The concentration of the nitrate ion, NO₃¯ in the solution given the data is 0.0216 M
What is molarity?This is defined as the mole of solute per unit litre of solution. Mathematically, it can be expressed as:
Molarity = mole / Volume
How to determine the mole of Al(NO₃)₃Mass of Al(NO₃)₃ = 0.6 g Molar mass of solute = 213 g/mol Mole of Al(NO₃)₃ =?Mole = mass / molar mass
Mole of Al(NO₃)₃ = 0.6 / 213
Mole of Al(NO₃)₃ = 0.0028 mole
How to determine the molarity of Al(NO₃)₃Mole of Al(NO₃)₃ = 0.0028 mole Volume = 390 mL = 390 / 1000 = 0.39 L Molarity of Al(NO₃)₃=?Molarity = mole / Volume
Molarity of Al(NO₃)₃ = 0.0028 / 0.39
Molarity of Al(NO₃)₃ = 0.0072 M
How to determine the molarity of NO₃¯Dissociation equation
Al(NO₃)₃(aq) <=> Al³⁺(aq) + 3NO₃¯(aq)
From the balanced equation above,
1 mole of Al(NO₃)₃ contains 3 moles of NO₃¯
Therefore,
0.0072 M Al(NO₃)₃ will contain = 0.0072 × 3 = 0.0216 M NO₃¯
Thus, the molarity of NO₃¯ in the solution is 0.0216 M
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Calculate the molarity it’s, M, if a solution prepared by dissolving 20 g of NaCl in 1 L of water.
Solve-step-by-step
Answer:
.3422 M
Explanation:
Mole weight of NaCl ( from periodic table) = 58.439 gm/mole
20 g is how many moles ? 20 g / 58.439 gm/mole=.3422 mole
.3422 mole / 1 liter .3422 M
COCI2 has an effusion rate of 0.00172 m/sec. Which of the gases below would have an effusion rate of 0.00323 m/sec?
a) CH4
b) CO
c) Ne
d) H2S
Show work.
Select all that apply. Which of these conditions will cause an increase in the molar concentration of a solution?
A) Increasing the amount of solute
B) Adding water to the aqueous solution
C) Some of the water evaporating from the aqueous solution
D) Stirring the solution
Answer:
A
Explanation:
-Icreaseing the solute would increase the concentration
-increasing the solvent will decrease the concentration
Match each interaction type to the correct amount of potential energy.
The type of energy which is present between the repulsion interaction is the highest potential energy.
What is potential energy?Potential energy is the amount of energy that is possess by any body with respect to the electric charge posses in that and other factors also.
When molecules have a high attraction force then they have the low potential energy in them.When molecules have a great repulsion between them then they have the great potential energy in them.And molecules have the middle amount of potential energy then they have the balanced interaction.Hence, molecules in which repulsion interaction is present will have highest potential energy.
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Location E is located at the Tropic of Cancer, while location F is at the equator. Which location is likely to be warmer at the start of the summer in June? Location E, because Earth is receiving equal sunlight throughout Location F, because Earth is receiving equal sunlight throughout Location E, because Earth's axis is tilted towards the sun Location F, because Earth's axis is tilted away from the sun
The answer is "Location E, because Earth's axis is tilted towards the sun" :D
Answer:
C. Location E, because earth's axis is tilted towards the sun
Explanation:
I really need help with this problem.
A mixture contains 21.7g NaCl, 3.74g KCl, and 9.76g LiCl.
How many moles of NaCl are in this mixture?
The molar mass is provided in picture attached.
Answer:
.371 mole of NaCl
Explanation:
Na Cl Mole weight = 22.989 + 35.45 = 58.439 g/mole
21.7 g / 58.439 g/mole = .371 mole
What is the final temperature (in °C) of 120.1 g of water (specific heat = 4.184 J/g･°C) at 24.20°C that absorbed 950.0 J of heat?
i need help someone help me the chem 101 is due tomorrow
From the calculations, the final temperature of the object is 26.1 °C.
What is specific heat capacity?The specific heat capacity is defined as the temperature that is required to raise 1 Kg of a substance through a temperature rise of 1 K.
When;
H = 950.0 J
T1 = 24.20°C
m = 120.1 g
c = 4.184 J/g･°C
T2 = ?
H = mc(T2 - T1)
950 = 120.1 * 4.184(T2 - 24.2)
950 = 502.5T2 - 12160.5
950 + 12160.5 = 502.5T2
T2 = 950 + 12160.5/502.5
T2 = 26.1 °C
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Difference between dipole dipole and hydrogen bonding
Hydrogen bonds are stronger than the dipole dipole attraction force present in any molecule.
What is bonding in molecules?Bonding is a type of attraction force which is present between the different atoms or elements of any substance.
Dipole dipole attraction force is a weak force as compared to the hydrogen bonding and present between any two oppositely charged atoms.Hydrogen bond is present between the hydrogen atom and more electronegative atoms like O, S, N and F.Hence main difference is that hydrogen bond is only present between the hydrogen atom and more electronegative.
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How many grams of potassium chloride (KCI) are needed to prepare 0.750 L of a 1.50 M solution of potassium chloride in water?
What is the critical angle for the interface between water and diamond?
The critical angle for the interface between water and diamond is 33.4 degrees.
What is the critical angle?The greatest angle at which a ray of light traveling through one transparent medium can hit the border between that medium and a second of lower refractive index.
It strikes the border without being completely reflected within the first medium is called the critical angle in optics.
Thus, the critical angle for the interface between water and diamond is 33.4 degrees.
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Is alka seltzer and acid or a base or netural
Answer:
Base
Explanation:
Why is Alka-Seltzer a base?
Alka-Seltzer contains sodium bicarbonate and citric acid. The sodium citrate acts as an antacid. Excess sodium bicarbonate from the Alka-Seltzer acts to neutralize base.
What amino acids do the following sequences code for? uuc
The amino acid coded by the sequence code UUC is phenylalanine.
What are amino acids?An amino acid is an organic compound made up of an amine group and carboxylic group. There are total 20 amino acids are present.
Phenylalanine is coded by two code sequence UUU and UUC. It is not an essential acid, and its role in the body is not confirmed.
Thus, the amino acid coded by the sequence code UUC is phenylalanine.
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Given the gas laws what has to increase to increase temperature
Given the gas laws, the volume has to increase, with the increase in temperature.
What are gas laws?There are three basis gas laws which relates the pressure, temperature, and volume of the gas.
Boyle's law—states that with the decrease in the pressure of the gas, the volume increases.Charles' law - states that volume of gas increase with increase in the temperature of the gas. Avogadro's Law - states that the volume of gas increases as the amount of gas increases.The ideal gas law is the combination of the three simple gas laws.
Thus, the volume has to increase, with the increase in temperature.
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