Summary:: I'm always unable to find the products of a chemical reaction. No Matter how much concept I study I can't ever get products from reasoning.
Here is the question:
What is the major product of this reaction?
.
OPTIONS :
MY ATTEMPT :
First of all I can see that...
According to me the option that is marked should be the answer because the oEt- will attack the carbon on the epoxide which forms the stable carbocation but in the answer key the answer is given to be d please tell me what i did wrong
A welded square frame consisting of four equal rods each with mass m and length 2l can move in the vertical plane by means of two small wheels in A and B that move without friction along a horizontal and vertical track, respectively. The disc is released from rest in a position where the sides...
Homework Statement
Solid sodium bicarbonate decompose when it's heated above 50 celsius. However, when it is dissolved in water interactions of components changes. So what happens when sodium hydrogen carbonate solution is heated? Does it release carbon dioxide when temperature is above 50...
For a reaction defined as such,
$$A\rightleftharpoons B$$
the equilibrium constant ##K## is defined by ##K = p_B / p_A##, with ##p## denoting the partial pressure (edit: at equilibrium). However, if ##K<<1##, which implies ##p_A >> p_B##, it is said that the backwards reaction dominates and that...
Homework Statement
Which one is more reactive, CO2 or NO2?
Homework Equations
The Attempt at a Solution
I drew the Lewis structures of these species and found there is one delocalized electron in NO2, so I think NO2 is more reactive.
Am I correct?
Please let me know if the following reaction is possible for high energy electrons colliding with neutrons or neutron-rich nuclei:
n+e^{-}\to \Delta^{-}+\nu_e.\tag{1}
If it is forbidden for some conservation law or for some other reason, please give me an explanation why. This reaction is...
I am not talking about the reactions of simple atoms in chemistry, I am speaking, for example deuterium, heavy water, isotopes of hydrogen, oxygen, carbon, etc.I would like to know how to calculate when two atoms merge, to know mathematically what atom will form, example deuterium + deuterium =...
I have obtained an experimental setup of a Marx bank which has electrolytic liquid resistors. In the tubing of the resistors are various strength solutions of copper sulfate. I was told that the electrodes are copper but there appears to be some sort of plating or other reaction occurring...
Homework Statement
Homework Equations
The Attempt at a Solution
C=C double bonds means that it is not an Alkane because an Alkane is saturated hydrocarbon. So the answer should be from A, B or C.
Homework Statement
Consider the following reaction
$$\mathrm{Ni^{2+}_{(aq)} + H_2S_{(g)} \to Ni_{(s)} + S_{(s)} + 2H^{+}_{(aq)}}$$
What are the activities of the terms in the reaction?
Homework Equations
The activity is defined as ##a = c/c^\circ## in ##\mathrm{ mol \, dm^3}##
3. The...
Hello all,
I've used physicsforums a few times over the years, but I believe this is my first post. I'm working on an engineering project in which I need to find a highly-endothermic reaction where the reactants and products will be stable at very high temperatures (well over 800C), or at least...
Cheers community, I have been studying the Struvite formation from respective ions. Being the general formula for Struvite MgNH4PO4.6H2O I intuitively tought the reaction would be
Mg2+ + NH4+ + PO43- + 6H2O↔ MgNH4PO4.6H2O.
However from literature and from practice, not only the optimal pH seems...
Hi.
I found following exercise in a high school textbook:
"Compute the entropy change in following process:"
The solution is
"The number of particles decreases from ##N_1## to ##N_2=N_1/2##. Hence the entropy decreases by
$$\Delta S=-k\cdot N_1\cdot \ln{2}\enspace ."$$
I can't quite follow...
here is the question (part I):
For part I, I need some assistance, I cannot figure out how to do the question. I know eventually what to do, it's just working out the equilibrium constants I'm having trouble with. So to start, I want to work out the K values at 600K and 800K, I do this by...
Homework Statement
Given the reaction K2CO3(s) + 2HCl(aq) → 2KCl(aq) + CO2(g) + H2O(l), I need to find the enthalpy change in J, given that:
The specific heat capacity of water is 4.2J g-1 °C-1, and
The mass change of potassium carbonate is 2.98g, and the temperature change was °6C, and the...
Homework Statement
In each of the diagrams (please see attached file (I am sorry for the rotated, the original was in normal form but when uploading it, it was somehow rotated)) and the description of each case below, a particle is moving on a smooth surface, so that the reaction force R acting...
Homework Statement
Write separate equations for each potassium salt (KH2PO4) dissolving in water and for the ionization reaction of the weak acid anion that each of these salts contains.
Homework Equations
None
The Attempt at a Solution
I just needed to clarify when it dissolves in water do...
Hey,
I have a simple ANSYS model shown in link:
https://dl.dropboxusercontent.com/u/104865119/hand_calc.PNG [Broken].
Ansys reaction force in z axis is +121 N and -121 N. Can someone clarify how do you
get to this result using hand calculations?
Homework Statement
There is a object travelling at 0,2m/s with a mass of 75,000kg. The object impacts a fixed point at a distance of 3.5m from its center of gravity (COG) and rotates around this point. What is the reaction force at the point of rotation?
Homework Equations
I think it is...
Homework Statement
Felder & Rousseau 4.73 (p. 184)
A mixture of propane and butane is burned with pure oxygen. The combustion products contain 47.4 mole % H2O. After all of the water is removed from the products, the residual gas contains 69.4 mole% CO2 and the balance is O2. What is the mole...
This is the question and the answer, the problem is i don't know how to get to the answer
top is question and bottom is answer
I attempted to divide the gas concentration by 24 to get molar mass, but that didn't work
and how am i suppose to know that OH- is one of the products? i guessed...
Dear PF Forum,
I have a problem with calculating energy which I should have learnt long ago in my high school time.
If I push (accelerate) a 1 kg object 1 meter/sec2 for 10 seconds, I spend energy like this.
Distance = 1/2 at2. So I would have pushed this object for 50 metres. So I'm using...
Hi guys. This is my first post here. Here it goes.
I'm attending an introductory course on particle physics.
By now, I'm supposed to know how to find out if a given reaction, say
νμ+p→μ++n
(for example) is possible or not.
Unfortunately, the rules by which a reaction must abide are still foggy...
I have a liquid scintillator, the electronics system, and a beam of neutrons from a reactor. How do I calculate the neutron flux? Cold anybody give me a formula or equation? Not this equation: phi = n X v, where phi - flux, n = number of neutrons per cm3, v = velocity of the neutrons, because I...
My grandson asked me this question:
If in fact,as Newton said,all actions are accompanied by an equal and opposite reaction, then there can be no single actions in the universe;all actions must therefor be part of a reaction between two opposite and equal actions,which are in fact also...
Hello all,
I have a (at what first seemed) fairly simple question about calculating the forces on this fulcrum design I have.
Here is an image of the sketch and free body diagram that I drew:
Basically, the pivot point in my real life application is actually a cam, but for the sake of this...
Homework Statement
Data in the table were collected at 300 K for the following reaction:
A(g) + B(g) → products
Concentration of A
1.00
0.100
1.100
Concentration of B
0.100
0.100
1.00
Initial Rate (M/s)
1.29x10^-29
1.33x10^-30
1.30x10^-29...