11/28/17

Effects of changing concentration of a solution?
If you change the concentration of a solution, will the molar absorption coefficient change? why?
Follows • 2
Expert Answers •1

11/28/17

Chemistry Homework
Write the cell notation for an electrochemical cell consisting of an anode where Cr2+(aq) is oxidized to Cr3+(aq) at a platinum electrode and a cathode where Fe3+(aq) is reduced to Fe2+(aq) at a... more
Follows • 2
Expert Answers •2

11/28/17

Chemistry Homework
Write the cell notation for an electrochemical cell consisting of an anode where Cr2+(aq) is oxidized to Cr3+(aq) at a platinum electrode and a cathode where Fe3+(aq) is reduced to Fe2+(aq) at a... more
Follows • 2
Expert Answers •2

11/28/17

Systolic blood pressure relates to pressure on arteries when the heart beats
Blood pressure
Follows • 2
Expert Answers •1

11/27/17

Oxidation numbers assigned to Cl in HClO4 and ClO3
I need help please. I don't understand this
Follows • 2
Expert Answers •1

11/27/17

true or false atomic mass increases as you move left to across periods and down groups on periodic table
5.1 concept review - organizing the elements, elements in the periodic table
Follows • 2
Expert Answers •1

11/27/17

Concentration at equilibrium?
Consider the reaction at 500.0K N2(g) + 2O2(g)--->2NO2(g), if delta G rxn=102.60 kJ/mol, a. what is the value of K?   b. If the concentration of N2= 1.5 M and O2 =2.55 M, what is the... more
Follows • 2
Expert Answers •1

11/27/17

Based on the electron configurations and orbital spin diagrams for the neutral atom and the ion of the element having atomic number 12
explain the valence number of electrons in the element responsible for the ion's charge 
Follows • 2
Expert Answers •1

11/27/17

chemistry from stoichiometry
1kg of 1m glucose solution is diluted to 5kg the molality of the diluted solution should be 
Follows • 2
Expert Answers •1

11/27/17

Concentration
How many milligrams of NaCl are there in 3l of 0.9% NaCl solution? 
Follows • 2
Expert Answers •1

11/27/17

Concentration
A dermatologist prescribed the following on a prescription  Rx Sulphur 2% Salicylic acid 6% Soft paraffin                                           Mitte: 60g  ointment     You are required... more
Follows • 2
Expert Answers •1

11/27/17

Can you help me with this exothermic lattice energy problem?
How do I determine which of the following pairs of ionic substances has the most exothermic lattice energy?   A. LiF, CsF  B. NaBr, NaI  C. BaCl2, BaO  D. Na2SO4, CaSO4  E. KF, K2O  F. Li2O,... more
Follows • 2
Expert Answers •1

11/27/17

Are instantaneous dipole-induced dipole forces stronger than permanent dipole forces??
If so, why are they stronger.    Also do you identify a compound with permanent dipoles if it is a polar molecule or if there are polar bonds??
Follows • 2
Expert Answers •1

11/26/17

Write a balanced molecular equation
Write the balanced molecular equation for the neutralization reaction between HCl and Ba(OH)2 in aqueous solution. Include physical states.
Follows • 2
Expert Answers •1

11/26/17

This question is based on neutralization reactions: H₃PO₄ + Ba(OH)₂ → ???
Please explain and give me step-by-step procedure. Thanks!
Follows • 2
Expert Answers •1

11/26/17

she needs 1 1/2 times this volume for an experiment what is the volume of acid miss terry needs for the experiment?
i am not sure if i got the right answer the answer i got was 2 1/5 but i feel i did something wrong
Follows • 2
Expert Answers •2

11/26/17

U-tube (closed on both ends); multiple gases
The U-tube in the figure is sealed at both ends. It contains a gas A (located in the right arm), another gas B (located in the left arm) and mercury. The heights of mercury in the two arms are as... more
Follows • 3
Expert Answers •2

11/25/17

The question that I just ask was answered incorrectly.
Just because all three compounds involved in this reaction are soluble electrolytes does not mean that there wouldn't be any reaction!I already know that the reaction between ammonium nitrate and... more
Follows • 2
Expert Answers •1

11/25/17

What is the reaction between ammonium perchlorate and sodium hydroxide?
Ammonium nitrate would also be present in the reaction.if it is even of relevance.
Follows • 2
Expert Answers •1

11/25/17

Calculate the concentration of unknown vinegar in the solution
14 mL of 0.10 M NaOH was needed to neutralize 15 mL of vinegar solution of unknown concentration. Calculate the concentration of the unknown vinegar solution in gram per liter 
Follows • 2
Expert Answers •1

11/25/17

Grams of protein in a potato
Determine the grams of protein in a small potato that has a total of 92.0 kcal, and contsils 18.0 grams of carbohydrates and no fat.
Follows • 2
Expert Answers •1

11/25/17

indicating the total number of ions present in a solution
Chemical Formula of Salt NaI Cation Na+  Anion I- What is the total number of ions in 1.0 L of a 1.0 mol/L solution 
Follows • 2
Expert Answers •1

11/25/17

Writing Alpha, Beta and Gamma decay equations
How do you write the alpha,beta and gamma decay equations for 198Rn86?   Our teacher didn't teach us how to write alpha,beta and gamma decay equations. However, I want to learn it before my... more
Follows • 3
Expert Answers •1

11/25/17

Can you help me with this Chemical Bonding problem?
How do I figure out which noble has had the same electron configuration as each of the ions in the following compounds?   A. Cesium sulfide  B. Strontium fluoride  C. Calcium nitride  D.... more
Follows • 2
Expert Answers •1

11/24/17

About HCL whether it is ionic or covalent compound
As we know that electrolytes are ionic compound and in its example HI, NaOH, KOH, LiOH are presented and (HCL)  is also presented. Tell me whether it is right  or not. As we know HCL is covalent... more
Follows • 3
Expert Answers •2

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.