Answers
Explanation
- Number of moles of chloride ions in the final solution:
- Each mole of barium chloride contains two moles of chloride ions. Thus the concentration of chloride ions in the initial 1.51 M barium chloride solution:
Therefore
Related Questions
Lewisite (2-chloroethenyldichloroarsine) was once manufactured as a chemical weapon, acting as a lung irritant and a blistering agent. During World War II, British biochemists developed an antidote which came to be known as British anti-Lewisite (BAL) (2,3-disulfanylpropan-1-ol). Today, BAL is used medically to treat toxic metal poisoning. Complete the reaction between Lewisite and BAL by giving the structure of the organic product and indicating the coefficient for the number of moles of HCl produced in the reaction.
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A 2.00 L container of gas has a pressure of 1.00 atm at 300 K. The temperature of the gas is halved to 150K, and the measured pressure of the same 2.00 Liter sample is 0.420 atm. Which of the following is the best explanation for these observations? A. Pressure is proportional to temperature for a fixed volume of gas. B. The molecules of the gas occupy a significant portion of the volume. C. The molecules of the gas have negligible volume of their own. D. The molecules have significant attractive forces at 150 K. E. The gas is closer to an ideal gas at 150 K.
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Answers
Answer:
Structure in attachment.
Explanation:
The oxymercuration-demercuration of an asymmetric alkene usually produces the Markovnikov orientation of an addition. The electrophile ⁺Hg(OAc), formed by the electrophile attack of the mercury ion, remains attached to least substituted group at the end of the double bond. This electrophile has a considerable amount of positive charge on its two carbon atoms, but there is more positive charge on the more substituted carbon atom, where it is more stable. The water attack occurs on this more electrophilic carbon, and the Markovnikov orientation occurs.
In hydroboration, borane adds to the double bond in one step. Boron is added to the less hindered and less substituted carbon, and hydrogen is added to the more substituted carbon. The electrophilic boron atom adds to the less substituted end of the double bond, positioning the positive charge (and the hydrogen atom) at the more substituted end. The result is a product with the anti-Markovnikov orientation.
Jessim should not move except to slowly spin the globe
Jesim should slowly spin the globe and walk away from Nancy
Jessim should have Nancy walk around him while spinning the ball
Jessim should spin the globe quickly while walking in a circle around Nancy
Answers
Answer:
The answer is D jessim should spin the glove quickly while walking in a circle around nancy.
Explanation:
Answers
The chemical equation presented in option A follows the law of conservation of mass.
The principle of conservation of mass states, mass can neither be created nor destroyed but can be transformed from one form to another.
A reaction that follows the law of conservation of mass, must have equal number of moles each elements in reactants side and products side.
Only option A follows the law of conservation of mass;
Thus, we can conclude that the chemical equation presented in option A follows the law of conservation of mass.
Learn more here:brainly.com/question/13383562
Answer:
Option A
Explanation:
The expression that obeys the law of conservation of mass is choice A;
2LiOH + H₂CO₃ → Li₂CO₃ + 2H₂O
According to the law of conservation of mass; "in a chemical reaction, matter is neither created nor destroyed". By this law, mass is usually conserved.
The equation shows that mass is conserved because the number of moles of each specie is found on both sides
Number of moles
Li O H C
Reactants 2 5 4 1
Products 2 5 4 1
This shows that mass is indeed conserved.
Answers
Answer:
The gases will expand 8.2 L against the constant pressure of 710 torr.
Explanation:
Given that:
the original volume V₁ = 35 cm³ = 35 × 10⁻⁶ m³
Since the combustion of the mixture releases energy then :
the work W = - 775 J
Pressure = 710 torr
Since 1 torr = 133.322 Pa
710 torr = 94658.62 Pa
We all know that:
W = -PdV
-775 = - 94658.62 Pa ( V₂ - V₁ )
-775 = - 94658.62 ( V₂ - 35 × 10⁻⁶)
-775/ - 94658.62 = V₂ - 35 × 10⁻⁶
0.008187 = V₂ - 35 × 10⁻⁶
V₂ = 0.008187 + 35 × 10⁻⁶
V₂ = 0.008222 m³
The change in volume dV = V₂ - V₁
The change in volume dV = 0.008222 m³ - 35 × 10⁻⁶ m³
The change in volume dV = 0.008187 m³
To litres
The change in volume dV = 8.2 L
Thus, the gases will expand 8.2 L against the constant pressure of 710 torr.
Answers
The atoms having the same number of protons but a different number of neutrons have been termed isotopes.
The neutrons and protons are the constituents of the nucleus. The number of protons and electrons is equal in the atom. When two different atoms have the same number of protons the species have been termed isotopes. The atomic number of the species differ that resulting in the different positions in the periodic table.
For more information about the atoms, refer to the link:
True
False
Answers
Answer: False
Explanation: Alloys are harder and stronger because the different-sized atoms of the mixed metals make the atomic layers less regular, so they cannot slide as easily.