JustAAA
Home
Questions
Share
Post a Question (with Answer)
Coins
Ask a Question
Log In
Sign Up
Home
/
Chemistry Questions
Search
Chemistry Questions
A beaker contains an aqueous solution of sodium acetate (NaC2H3O2) of unknown concentration. A few crystals...
Dehydration of cyclohexanol lab If you collected under 85 C, how do you think water could...
What mass of sucrose (C12H22O11) should be combined with 505g of water to make a solution...
Proton mass mp = 1.00727647 u Neutron mass mn = 1.00866501 u 231Th mass = 231.036299...
Explain why a plot of Fluorescence Intensity vs. Concentration has a maximum.
assume as students that you each use 1000 watts of power for 12 hours each day...
What is the pH of 0.16 Moles of NH4Cl ( ammonium chloride, an ionic compound)?
Calculate the Coulomb attraction between the atoms of the following salts: a) Cesium Chloride (CsCl) b)...
a) 0.250 mol of Na2S in 1.10 L of solution. b) 20.9 g of MgS in...
Which layer does soap exist during the salting out process, top or lower? What substances are...
If a solution containing 15.63 g of lead(II) chlorate is allowed to react completely with a...
I have a few questions I need answered about Corrosion: 1) How does a polymer (plastic)...
a) Neglect overpotential and determine the minimum potential required to electrolyze molten CrCl3. (answer: 2.3V) b)...
which of the following modified amino acids is incorporated during translation rather than being modified post-translationally?...
1. What can you conclude if the melting point of the salicylic acid you just synthesized...
You are trying to determine what a CV will look like if you are analyzing an...
A student ran an analysis on an unknown carbohydrate. The results indicated a positive test for...
Match the molecules with as many terms in the list as applicable. Some terms may be...
The specific rotation of a pure sample of the S form of compound a is +15....
Write the chemical reactions of a) Chromic acid + butyraldehyde b) chromic acid + benzaldehyde c)...
Name 2 industrial uses of ferrocene or R ferrocene based compounds.
A solution of H3PO4 in water has a concentration of 12% by massand has a density...
Calculate the molarity, mole fraction, and percent mass formula for a mixture of NaCl (MW=58.44 amu...
The pH of a 6.92×10-4 M solution of a weak monoprotic acid is 5.16. Calculate pKa...
Clemmenson vs. Wolf-Kishner reduction I know that the Clemmenson reduction is done under acidic conditions and...
For the following concentration cell: Mg(s) | Mg2+(0.24 M) | Mg2+(0.53 M) | Mg(s) (a) Determine...
Calculate the lattice energy for NaF (s) given the following sublimation of energy +109 kj/mol Hf...
(a) What is the density of sulfur hexafluoride (MM = 146.1) gas at 703 torr and...
Assuming that seawater has a total ion concentration (a.k.a colligative molarity) of 1.10 Mc, calculate how...
The pH of an aqueous solution of 0.452 M diethylamine (a weak base with the formula...
An exothermic reaction liberates 7.58 kJ of heat in a coffee cup calorimeter containing 157 grams...
Given that the vapor pressure of water is 17.54 Torr at 20 °C, calculate the vapor-pressure...
Concentration of NaOH = 1.1M Volume of NaOH = 45mL Concentration of HCL = 1.2M volume...
Chemistry Question Part a) A solution of hydrofluoric acid contains 48.0% HF by mass and has...
The best combination of reactants for preparing CH3CH2CH2CH2I is: a. CH3CH2CH2CH2OH + NaI (acetone) b. CH3CH2CH2CH2Br...
In a TLC experiment, why would you dissolve an unknown compound in a mixed solvent rather...
If you react 1 mole of benzaldehyde and excess ketone with a base (NaOH) catalyst to...
Calculate the pH of a solution that contains 2.00% (by weight, w/w) NaOH and has a...
Is the enthalpy of the Diels-Alder reaction positive or negative? Is the entropy of the Diels-Alder...
If an equilibrium reaction favors the products, does this mean that initially the forward reaction rate...
Why is sublimation a good purification technique?
25.00 ml of 0.100 M H2A is being titrated with 0.100 M NaOH. (Ka1=1.3x10^-2 Ka2=5.9x10^-7) Calculate...
Discuss some of the controversies involved in infant routines (e.g., scheduled versus demand-feeding, handling sleep problems,...
Consider the following fission reaction 1n + 235U ---> 90Kr + 142Ba + 4(1n) + 6gamma,...
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The...
Consider the reaction shown below, where M represents a generic metal. The standard free energy change...
1. Write a balanced equation for the neutralization of stomach acid by NaHCO3. Express your answer...
A. rank the following according to acid strength. 1. phenol 2. meta-nitrophenol 3. 4-nitrophenol B. explain...
How many grams of sodium contain the same number of atoms as 12.4 g of potassium?...
The titration of 25.0 mL of an iron(II) solution required 18.0 mL of a 0.225 M...
Electrochemical Cells and Cell Potentials Hands-On Labs, Inc. Version 42-0153-00-02 Lab Report Assistant This document is...
describe the electronic structure of carboon nanotube
A) If you dialyze 40 ml of protein in 8 M urea against 2 liters of...
Between ClO3- and IO3-, which has the smaller bond angle and why? between SOCl2 and SOF2,...
The ICP-OES was used to analyse phosphorus, a non-metal. While atomic absorption is often used for...
Why are the solutions filtered prior to injection onto the UPLC column?
A large rectangular vessel is divided by a partition into two compartments of identical shape, size,...
Determine the interatomic spacing for NaBr, NaCl, NaF, NaI Use this to arrange them in order...
Na2CO3 + 2HCl --------------> 2NaCl + H2O + CO2 7. Why did the reaction stop bubbling...
Predict the products, including stereochemistry where appropriate, for the m-chloroperoxybenzoic acid epoxidations of the following alkenes:...
6. If ΔH° for a reaction is +32 kJ and the Keq value at 25°C is...
Calculate the enthalpy, entropy, gibbs energy, and internal energy of combustion of cyclohexane.
Three samples of flexible tubing are subjected to the following tests: (a) Held in burner flame....
In which of the following reactions do you expect to have a significant decrease in entropy?...
A chemist combines 11.3 L N2 gas, 34.3 L O2 gas, and 17.5 L Br2 gas...
A reaction of 56.9 g of Na and 57.3g of Br2 yields 65.0g of NaBr. What...
4. Consider the following sequence of first order reactions: k1 k2 O → M → G...
Calculate [H+] and Ka or Kb for each solution given the molarity and pH of the...
The water gas shift reaction is used commercially to produce H2(g): CO(g)+H2O(g)⇌CO2(g)+H2(g). Use the following data...
Consider the following mechanism proposed for a reaction: Step 1) A + 2 B → C ...
1. a) Draw a vapour pressure (pA) vs composition (xA) graph for an ideal solution of...
Small rocket engines, such as model rockets, contain KClO3 to provide oxygen for the combustion reaction...
determine the combination of alkaline earth cations and test solution anions that produce a precipitate. Predict...
Assuming all volume change is due to gases, calculate the work for combustion of 1 mol...
For the reaction A+2B->3C, assumt that it follows the stochiometric relation given. 1) What is the...
the decomposition of NOCL,2NOCl 2NO+Cl2 has k=9.3*10^-5 L mol^-1 s^-1 at 100C and k=1.0*10^-3 mol^-1s^-1 at...
if the decomposition of N2O5 has an activation energy of 103 kJ/mole and a frequency factor...
Use chemical activities to calculate the pH of a solution containing 0.01M CH3COOH (pKa 4.756) plus...
Quick Solve Please 2. 15.0 mL of 0.50 M NaOH is added to a 100.-mL sample...
The chemical method of analysis in determination of the blood alcohol content (%BAC) is: 2K2Cr2O7 +...
‹
1
2
...
11
12
13
14
15
16
17
...
124
125
›
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
Ask a Question
ADVERTISEMENT
Active Questions
how do you think managerial accounting practices can support strategy and decision making?
asked 14 minutes ago
How can I draw a flow chart and a DFD (Level "0") of the following narrative?...
asked 46 minutes ago
The director of a MPA program finds the incoming 200 students in the department with a...
asked 1 hour ago
Interface an 2k RAM with 8085 microprocessor
asked 1 hour ago
A survey of 25 randomly selected customers found the ages shown (in years). The mean is...
asked 1 hour ago
Suppose all the employees got promoted on January 1, 2000. Write an SQL query that will...
asked 1 hour ago
A random sample of 28 people employed by the Florida state authority established they earned an...
asked 1 hour ago
In 2-3 well written paragraphs, summarize and explain the elements of treason, and analyze treason’s evidentiary...
asked 1 hour ago
For chapter 1 problem 6 of the Applied Linear Regression Models 4th Edition book, I found...
asked 1 hour ago
What is the role of things and internet in IoT (Internet of Things)? What do you...
asked 1 hour ago
write at least two full paragraphs explaining the most interesting thing you learned about researching PTSD?
asked 2 hours ago
which TSK program is used to find the files on a forensic image? which TSK program...
asked 2 hours ago