Answers
Answer:
The concentration of HCl is - 0.2675 M
Explanation:
At equivalence point,
Moles of = Moles of NaOH
Considering:-
Given that:
So,
The concentration of HCl is - 0.2675 M
Related Questions
Ammonium nitrate dissociates in water according to the following equation:43() = 4+()+03−()When a student mixes 5.00 g of NH4NO3 with 50.0 mL of water in a coffee-cup calorimeter, the temperature of the resultant solution decreases from 22.0 °C to 16.5 °C. Assume the density of water is 1.00 g/ml and the specific heat capacity of the resultant solution is 4.18 J/g·°C.1) Calculate q for the reaction. You must show your work.2) Calculate the number of moles of NH4NO3(s) which reacted. You must show your work.3) Calculate ΔH for the reaction in kJ/mol. You must show your work.
Ammonia is produced by the reaction of nitrogen and hydrogen: N2(g) + H2(g) NH3(g)(a) Balance the chemical equation.(b) Calculate the mass of ammonia produced when 35.0g of nitrogen reacts with hydrogen.
Which substance is most likely a lipid? -long chains of molecules composed of carbon, hydrogen, and oxygen atoms -compounds that are composed of amino acids and atoms, such as nitrogen, that are joined together by peptide bonds -a nonpolar organic compound that is insoluble in water -a molecule that constitutes the building blocks of more complex molecules that are soluble in water
A potassium ion (K+) would most likely bond with _____.Mg+OCl-Na+
Answers
Answer:
Maximum amount of ethanol - 483g, 0.612L.
Answers
The best explanation for the observation is that, the Pressure is proportional to temperature for a fixed volume of gas. (Option A)
From the question given above, the following data were obtained:
- Initial volume (V₁) = 2 L
- Initial pressure (P₁) = 1 atm
- Initial temperature (T₁) = 300 K
- Final temperature (T₂) = 150 K
- Final volume (V₂) = 2 L = constant
- Final pressure (P₂) = 0.420 atm
From the above, we can see that the volume is constant.
Applying the combine gas equation, we can conclude as follow:
P₁V₁ / T₁ = P₂V₂ / T₂
V₁ = V₂
P₁ / T₁ = P₂ / T₂
P/T = constant
P = constant × T
Thus, we can conclude that the pressure is proportional to the temperature at constant volume. This simply implies that the pressure will increase if the temperature increase and it will also decrease if the temperature decreases.
The correct answer to the question is Option A.
Learn more about gas laws: brainly.com/question/9631148
Answer:
A
Explanation:
PV=nRT
PV/nT
V/T -> (1)/(300)=(x)/(150)
x=.420
Answers
Whereas, the system under study is absorbing heat that is produced during the reaction. So if ΔH is found to be positive then it can be called as endothermic reaction.
The enthalpy change of the reaction indicates that it is an endothermic process.
FURTHER EXPLANATION
Enthalpy (ΔH) is the amount of heat absorbed or released in a reaction. It is based on the amount of energy needed to break the bonds and the energy released during bond formation. Enthalpy change is the difference in the enthalpy of the reactants and the products. The positive or negative sign for an enthalpy value indicates the direction of the heat flow: a positive ΔH indicates that the reaction is endothermic while a negative value for ΔH means that the reaction is exothermic.
Endothermic Reactions
Endothermic reactions are reactions that absorb heat from the surroundings to the system. This is the case when more energy is absorbed to break the bonds than is released to form the bonds. Endothermic reactions can be identified in the lab by observing if the reaction vessel becomes cooler as the reaction proceeds.
Exothermic Reactions
When the amount of energy released during bond formation is greater than the amount of energy absorbed during bond breaking, a net release of energy to the surroundings takes place and the reaction is exothermic. Exothermic reactions can be identified when the reaction vessel becomes hot as the reaction progresses.
LEARN MORE
- Heat capacity brainly.com/question/12976104
- Equilibrium brainly.com/question/12983923
- Gibbs Free Energy brainly.com/question/12979420
Keywords: Endothermic, Exothermic, Enthalpy
Answers
Answer:
yes
Explanation:
Usually, it would not affect the crucible, but depending on the temperature of the flame the enamel of the crucible may begin to melt and stick to the metal object being used to handle the crucible. This tiny amount that is melted off can cause very small changes in the original mass of the crucible, which although it is almost unnoticeable it is still there. Therefore, the answer to this question would be yes.
Final answer:
Using a cool, yellow-orange flame to heat the crucible does not directly affect its mass, but can lead to the burning off or decomposition of any impurities or residues present.
Explanation:
When a cool, yellow-orange flame is used to heat the crucible, it does not directly affect the mass of the crucible. The color of the flame is an indication of the temperature and the type of fuel being burned.
However, if there are impurities or residues in the crucible, the heat from the flame can cause them to burn off or decompose, which may slightly affect the mass of the crucible.
Learn more about Effect of flame color on crucible mass here:
#SPJ3
Answers
Answer:
3,3-dimethyldihydrofuran-2(3H)-one
Explanation:
The simulated spectrum of molecule => Figure 1
Mechanism=>Figure2
Answer:
From the given problem statement we need to hydrolyses HOCH2CH2C(CH3)2CN structure that forms (C6H10O2)
Peak of IR spectrum=1770 cm^-1
This structure for A involves 6 carbon atoms,four hydrogen atoms and 6 oxygen atoms for a complete reaction to occur.
Answers
Answer:
A base pair is a pair of bases that form hydrogen bonds in the double stranded DNA molecule.
- Adenine-thymine: A-T
- Guanine-cytosine: G-C
Replication Process:
- Double strand unwinds.
- New nucleorides line up via base pairing.
- Colvalent bonds link nucleotides together in the new strands.
Explanation: