Laser_3

Chemistry question

Chemistry question

Determine the pH of a solution by constructing a BCA
table, constructing an ICE table, writing the equilibrium
constant expressi

s.h_math   320   N/A

s.h_math

Chemistry - Sample Problem

Chemistry - Sample Problem

RioNii   113   N/A

RioNii

Chemistry - Problem Exercise

Chemistry - Problem Exercise

RioNii   163   N/A

RioNii

Is the Molecular formula for Sugar correct?

Is the Molecular formula for Sugar correct?

Is the following molecular formula for Sugar can be written as

H22C12O11 or

O11C12H22 or

O11H22C12 or

C12O11H22 or

H22O11C12 or

instead of C12H22O11?

Logically they can be w

prashantakerkar   198   N/A

prashantakerkar

Which of the following statements about dilution is TRUE?

Which of the following statements about dilution is TRUE?

Which of the following statements about dilution is TRUE?

The number of moles of solute remains constant after dilution.

The number of moles of solute decreases after dilution.

The number of moles of solute in

bio_man   225   N/A

bio_man

Fusion of Alloys.

Fusion of Alloys.

https://en.m.wikipedia.org › wiki › A...
Web results
Alloy - Wikipedia

Can there be Alloys fusion which were created with mixing of Metals ?

Chemical reactions for the same when Alloys are mixed?

Examples :

prashantakerkar   313   N/A

prashantakerkar

Determine the enthalpy change

Determine the enthalpy change

A typical automobile engine uses a lead-acid battery. During discharge, the following chemical reaction takes place: Pb (s) + PbO2 (s) + 2H2SO4 2PbSO4 (aq) + 2H2O (I)
Determine the enthalpy change of this reaction, given the following equ

Smile23   205   N/A

Smile23

Calculate the molar solubility of CaF2 in a solution containing 0.250 M Ca(NO3)2.

Calculate the molar solubility of CaF2 in a solution containing 0.250 M Ca(NO3)2.

Solution:



Then you sub. those into the x va

bio_man   2749   N/A

bio_man

Machine learning, computer vision & image processing algorithm for acids,bases&salts images ...

Machine learning, computer vision & image processing algorithm for acids,bases&salts images ...

https://www.google.com/search?client=ms-android-lava&sxsrf=ALeKk01KnwBPEdHVXMk0EDPwiNqNBJcUBw%3A1604723235710&ei=IyKmX5npKpv69QOnlxI&q=acids+bases+and+salts&oq=acids+bases+and+salts&gs_lcp=ChNtb2JpbGUtZ3dzLXdpei1zZXJwEAMyBwgjEMkDE

prashantakerkar   195   N/A

prashantakerkar

Coordination Chemistry.

Coordination Chemistry.

(b)
When inspecting the structures of the metal-metal bonded complex ions [Mo2Cl8]4-, [Re2Cl8]2-, and [Os2Cl8]2-, it is observed that the chlorido ligands on the metal centres have an eclipsed arrangement in [Mo2Cl8]4- and [Re2Cl8]2-, but they a

bananas.red   244   N/A

bananas.red

Coordination Chemistry.

Coordination Chemistry.

(a)
A chemist is given three bottles, each containing a pure sample of one of the three complexes, Na3[Co(CN)6], Na3[-Fe(C2O4)3] or Na3[CoF6] (C2O4 represents the bidentate, dianionic oxalato ligand). However, the bottles are not labelled and

bananas.red   224   N/A

bananas.red

Fluorescence Spectroscopy

Fluorescence Spectroscopy

Fluorescence Spectroscopy
(i) Fluorescence resonance energy transfer (FRET) is widely used in biology as a molecular ruler (i.e. to estimate distances between two fluorescent molecules). A FRET donor-acceptor pair had a Förster distance of 7.2

bananas.red   247   N/A

bananas.red

Analytical chemistry lab

Analytical chemistry lab

according to Fagan's method titrate 30m1 of the mixed halides solution (K1 +NaCI) with standard 0.1M AgNO3 using flourescein indicator, then titrate another 30m1 of the original solution (KI +NaC1) with the same titrant using eosin indicator the

Mayar Arabeyat   294   N/A

Mayar Arabeyat

Analytical chemistry lab

Analytical chemistry lab

Back titration reaction

according to neutralization capacity of antiacid add to conical flask 10 ml of the standard 0.5M HCL, then Stopper the flask and let it stand at room temperature for 10 min.-Add 5-6 drops bromophenol blue then titr

Mayar Arabeyat   259   N/A

Mayar Arabeyat

Analytical lab

Analytical lab

Back titration reaction

Of a known amount of powdered aspirin tablets, take a weight that is equivalent to 600mg aspirin add 40m1 0.5M NaOH, heat for 15 minutes, titrate the excess of alkali with standardized 0.5M HCl using phenol red sol

Mayar Arabeyat   253   N/A

Mayar Arabeyat

Draw the products of these reactions

Draw the products of these reactions

(see attachment; let me know if it's hard to see)

Provide products for each of the reactions below. Show all enantiomers and/or diastereomers. Circle any meso compounds that are produced.

Any help and explanation would be a

LaviBookman   274   N/A

LaviBookman

Calculate the molar enthalpy change of neutralisation of potassium carbonate. Assume that all ...

Calculate the molar enthalpy change of neutralisation of potassium carbonate. Assume that all ...

When 2.76g of potassium carbonate were added to 30.0cm^3 of 2.0mol/dm^3 hydrochloric acid, the temperature rose to 5.2°C. Write the equation for this reaction. Calculate the molar enthalpy change of neutralisation of potassium carbonate. Assume that

Christianah   516   N/A

Christianah

Serial Dilutions from 3M to 0.1-0.2

Serial Dilutions from 3M to 0.1-0.2

Design a dilution scheme to achieve the following aims. Make sure to draw the dilution scheme, include the volume of dilution blanks used, volumes transferred, and the fold dilution that corresponds to the volume transferred.

4. In order t

karmahone   364   N/A

karmahone

Lewis Structures and Molecular Models

Lewis Structures and Molecular Models

These are questions for a pre-lab and I do not understand how to do these at all. I talked to the teacher and he only gave me the definitions and told me to think about what it is asking for. Thanks for the help!!!

1.  Ozone absorbs u

Boedecjt01   567   N/A

Boedecjt01

How would the amount of NaOH differ if the concentration of the NaOH were doubled?

How would the amount of NaOH differ if the concentration of the NaOH were doubled?

Doing Virtual Chemlab 6-3 : Concepts in Acid-Base Titrations and I'm not really understanding the question my teacher is asking.

The next question she asks is: "How would the amount of NaOH differ if the concentration of the HCl

Andalyne   559   N/A

Andalyne

Which of the statements listed below is true regarding the following redox reaction occurring in a ...

Which of the statements listed below is true regarding the following redox reaction occurring in a ...

Which of the statements listed below is true regarding the following redox reaction occurring in a spontaneous electrochemical cell?
Sn(s) + Cu2+(aq) → Cu(s) + Sn2+(aq)
Question 40 options:
   
Sn is oxidized at the cathode.
   

jbee89   839   N/A

jbee89

Identify the "gas evolution" reactions among the following

Identify the "gas evolution" reactions among the following

1. 2HCl(aq)+K2CO3(aq)---->H2O(l)+CO2(g)+2KCl(aq)
2. CH4(g)+2O2(g)----->CO2(g)+2H2O(l)
3. 2HCl(aq)+K2S(aq)------>H2S(g)+2KCl(aq)

lovebugbuglove   758   N/A

lovebugbuglove

Thinkwell Chemistry lab #4's last question...

Thinkwell Chemistry lab #4's last question...

If you have ever been to a public pool, you know that you are required to exit the pool when there is lightning in the sky. But consider your results from part (a) above and what you learned in this lab, paying particular attention to the very first

Scoobee   396   N/A

Scoobee

What is the name of the reagent in this orgo chem problem? ( picture attached)

What is the name of the reagent in this orgo chem problem? ( picture attached)

Hello,
 
    I've been trying to understand why this happens and how, but I've never seen this before. Also, it's hard to read the reagent. Does anyone know what it says and how the ring closes?

Th

fdr13001   330   N/A

fdr13001

Previous reply:Plancks equation will help: E=hf=hc/? ?=hc/E

Previous reply:Plancks equation will help: E=hf=hc/? ?=hc/E

When E=hc/?, to solve for ?, multiply each side of equation by 1/hc, giving ?=E/hc What rule/property allows above example/reply invert E/hc to hc/E?

magendaswede   314   N/A

magendaswede

Chemistry question on enantiomers

Chemistry question on enantiomers

So this is actually a question in my biology class but it is a question about enantiomers so I figured I'd put it in Chemistry. Anyway! So the answer is A being that A is NOT an enantiomer. I'm not understanding why it's not if D is th

Xabien   456   N/A

Xabien

Having trouble on excel graphing the distillations

Having trouble on excel graphing the distillations

Hello if anyone could guide me or show me how they graph this on excel that would be great. I don't see the bins or ranges option in the excel 2011 version.

I am trying to graph a fractional and simple fractional distillation.

pringles08   345   N/A

pringles08

Using Hess's Law and any necessary information from your Data Booklet, calculate

Using Hess's Law and any necessary information from your Data Booklet, calculate

combustion of ethene
Using Hess's Law and any necessary information from your Data Booklet, calculate the molar enthalpy of reaction for the combustion of ethene in kJ/mol.
C2H4+ 3O2 ---> 2CO2 + 2H2O

aisha1   411   N/A

aisha1

The concentration of hydronium ions, i.e. (H3O+), in a solution is measured

The concentration of hydronium ions, i.e. (H3O+), in a solution is measured

The concentration of hydronium ions, i.e. (H3O+), in a solution is measured to be 8.6x10^-9 mol/L. What is the pH of the solution? Is this solution an acid or a base?

biochicka   443   N/A

biochicka

Calculate the concentration in Pb2+ of the solution.

Calculate the concentration in Pb2+ of the solution.

Hi there,

I'm not sure if I've done this problem right, I would really appreciate any help.

A sheet of lead is plunged in a 0.1 M solution of sulfuric acid. The following reaction takes place:

Pb&nbs

RowanF   434   N/A

RowanF

A solution is made containing 8.50 g CH3OH (density = 0.791 g/mL) in

A solution is made containing 8.50 g CH3OH (density = 0.791 g/mL) in

2)   A solution is made containing 8.50 g CH3OH (density = 0.791 g/mL) in                                250 g H2O (density = 1.00 g/mL).  Calculate:

aholmes   1888   N/A

aholmes

How does the rate of an E2 Elimination reaction affected by the ff. conditions?

How does the rate of an E2 Elimination reaction affected by the ff. conditions?

Conditions:
1. Reactant Structure: bromocyclohexane, chlorocyclohexane, iodocyclohexane
2. Base Strengths: 1.0 mL sodium ethoxide diluted with 1.0 mL ethanol as opposed to the original which is 2.0 mL sodium ethoxide
3. Temperature: re

angsthussler100   852   N/A

angsthussler100

What is the product of the following reaction?

What is the product of the following reaction?

1. What is the product of the original reaction as shown?
2. If Br is replaced with Cl, what would be the product?
3. If Br is replaced with I, what would be the product?
(Three total answers)

angsthussler100   646   N/A

angsthussler100

Design an experiment you could carry out to test the hypothesis that changing the catalyst will not

Design an experiment you could carry out to test the hypothesis that changing the catalyst will not

Design an experiment you could carry out to test the hypothesis that changing the catalyst will not affect the production of biodiesel.

biochicka   1248   N/A

biochicka

What is a Polar Covalent Bond?

What is a Polar Covalent Bond?

A polar covalent bond is a bond between two non-metals with different electronegativities. Only bonds between the same elements are truly nonpolar. The higher the difference in electronegativity, the more polar the bond is. Take a look at this table

tutorpace   355   N/A

tutorpace

Consider Li+, F-, and O2-. Which ratio should be the largest?

Consider Li+, F-, and O2-. Which ratio should be the largest?

A)  (radius Li+)/(radius F-)
B)  (radius Li+)/(radius O2-)
C)  (radius F-)/(radius Li+)
D)  (radius O2-)/(radius Li+)

mhlammers   1127   N/A

mhlammers

One of the boundary conditions for Particle in a Box is that the box's walls hav

One of the boundary conditions for Particle in a Box is that the box's walls hav

One of the boundary conditions for Particle in a Box is that the box's walls have ___________
 potential energy, and a result the particle has
__________ probability of being found at the walls.

quixie   1438   N/A

quixie

Consider the solution to the Schrodinger equation involving a single particle in

Consider the solution to the Schrodinger equation involving a single particle in

Consider the solution to the Schrodinger equation involving a single particle in a one-dimensional box. If all other variables were unchanged, decreasing the length (L) of the box from 400 nm to 200 nm would _________  the energy (E) of the part

quixie   1338   N/A

quixie

What is the subshell notation and the number of orbitals that can have the quant

What is the subshell notation and the number of orbitals that can have the quant

What is the subshell notation and the number of orbitals that can have the quantum numbers n = 2, ℓ= 1?

1. None of these
2. 2s ; 2
3. 2p ; 2
4. 2d ; 2
5. 2d ; 3
6. 2p ; 3

quixie   897   N/A

quixie

The Schrödinger equation yields an infinite number of solutions for the possible

The Schrödinger equation yields an infinite number of solutions for the possible

The Schrödinger equation yields an infinite number of solutions for the possible location of an electron in a hydrogen atom. Each of these solutions has a(n) _______  and a(n) __________  . The solutions from the Schrödinger equation are la

quixie   890   N/A

quixie