JustAAA
Home
Questions
Share
Post a Question (with Answer)
Coins
Ask a Question
Log In
Sign Up
Home
/
Chemistry Questions
Search
Chemistry Questions
A. A 11.3 g sample of an aqueous solution of hydrobromic acid contains an unknown amount...
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 13.2g...
Experiment 1: Titrations With Hot Taco Sauce and Ketchup Materials: (2) 250 mL Beakers 100 mL...
What causes a junction potential? How does this potential limit the accuracy of potentiometric analysis? What...
Calculate the pH of the following solutions. A solution is prepared by mixing equal volumes of...
Describe how you can create a buffer from solid Na2CO3, aqueous HCl and water. List the...
A solution is made by adding 0.380 g Ca(OH)2(s), 50.0 mL of 1.20 M HNO3, and...
1) What will be the coefficient for NaOH when this equation is balanced? (There will be...
Part A Aspirin (acetylsalicylic acid, C9H8O4) is a weak monoprotic acid. To determine its acid-dissociation constant,...
6 compounds 1-butanol acetone methanol butanone 1-propanol ethanol Use these compounds to answer the question: 1....
Only one aldehyde gives a positive test with the iodoform test reagent. Give the name and...
An ideal gas in a sealed container has an initial volume of 2.75 L. At constant...
If the mass of a 125 mL urine sample is 135 g, what is its density
Th power of a red laser (wavelength of 630nm) is 450 watts. how many protons per...
a hot water ar 80°C is mixed with cold water at 20°C in a mixing chamber...
A solid sample formed by barium chloride and potassium nitrate, weighing 600 mg is subjected to...
forensics chemist have found seized moonshine liquor samples that been adultersted with methanol to increase their...
will acetone be completely deprotonated by potassium tert-butoxide? a. yes b. no
Tosyl-L-phenylalanine chloromethyl ketone(TPCK) is an inhibitor of Chymotrypsin that binds in the active site and is...
Manganese is an important minor element in aquatic chemistry. Why? Touch on its general chemistry in...
a Explain how (in procedures step format), the reaction of Ni(OH)2 with NH3 would enable you...
When 1.0 mole of acetic acid is diluted with water to a volume of 1.0 L...
500.0 mL of 0.160 M NaOH is added to 575 mL of 0.250 M weak acid...
Using the reaction mechanism given below write a rate expression for the reaction shown. Reaction: COCl2(g)...
the rate constant for the reaction shown below is 2.6x10^-8 L/mol*s when the reaction proceeds at...
Given that- 2 CCl4(g) + O2(g) ⇌ 2 COCl2(g) + 2 Cl2(g) has Kc = 9.9...
Define electron pair geometry and molecular geometry. When are these the same and when are they...
Compare the titration curves of weak acid-strong base reactions with the curve for strong acid-strong base...
Copper from a 200.0 mL solution of copper(II) sulfate is plated on the cathode of an...
BIOCHEM; The intramitochondrial concentration of malate under some conditions is 0.22 mM and the NAD+/ NADH...
Data for the decomposition of hydrogen peroxide at some set temperature T is include below. The...
A coal gasifier in a power plant produces a gas mixture with the following volumetric percent...
How does the intermediate produced in nucleophilic aromatic substitution differ from the intermediate produced in electrophilic...
Identify each of the tests for an illegal drug as quantitative or qualitative. The test shows...
c.)At a given temperature, the elementary reaction A<=> B in the forward direction is the first...
A) Neglecting activities, calculate the pH of a solution containing 0.018 M NaOH plus 0.0120 M...
Salicylic Acid: 3.5062g (Molecular Weight = 138.12g/mol) Acetic Anhydride: 2.63mL (Molecular Weight = 102.09g/mol; Density =...
A sample of solid Ca(OH)2 was stirred in water at a certain temperature until the solution...
Cyclohexane (C6H12) undergoes a molecular rearrangement in the presence of AlCl3 to form methylcyclopentane (MCP) according...
(a) How many moles of ammonium ions are in 0.552 g of ammonium carbonate? mol (b)...
A sample of solid Ca(OH)2 was stirred in water at a certain temperature until the solution...
How many grams of H2O will be formed when 17.6 g H2 is mixed with 22.3...
Propane (C3H8) boils at ‐42.0 °C with a heat of vaporization of 19.0 kJ/mol. Calculate the...
a. What is the importance of Free radical reactions? b. Why bromination is more selective than...
What would be my corrected barometer reading? Room temp:21C, Barameter reading:756mmHg, temp. Correction: 2.47C latitude correction:54
Blood is a buffered solution with pH values ranging from 7.35-7.45. The important components of blood...
Hydrogen iodide undergoes decomposition according to the equation 2HI(g) H2(g) + I2(g) The equilibrium constant Kp...
A mixture of dry ice (i.e., solid CO2) and acetone (liquid) is commonly used in laboratories...
How does a decrease in the container volume affect the amount of C present at equilibrium...
Consider the chemical equation and equilibrium constant at 25∘C: H2(g)+I2(g)⇌2HI(g) , K=6.2×102 Calculate the equilibrium constant...
Which is the best choice for preparing a buffer with a pH of 7.00? Select one:...
Predict the solubilities of the following substances in water. a)NaNo3 b)NH4Br c) (NH4)2SO4 d) (NH4)2CO3 e)BaBr2...
Please explain why hydrogen fuel is much efficient using in a fuel cell than used in...
If the clothes you are wearing absorb 1.00 kg of water and then dry in a...
What is the ideal solvent for crystallization if a particular compound?
When describing polymers what do the terms isotactic and syntactic mean?
A solution containing 1.0 mg of Iron in 100 ml was observed to transmit 70% of...
Consider the reaction between N2H4 and N2O4: 2N2H4(g)+N2O4(g)→3N2(g)+4H2O(g) A reaction vessel initially contains 20.5 gN2H4 and...
Balance the following equations and identify the precipitates produced (ex: solid, liquid, gas, or aqueous) 1....
If 16.9 kilograms of Al2O3(s), 51.4 kilograms of NaOH(l), and 51.4 kilograms of HF(g) react completely,...
D-altrose can be prepared from D-talose by a route that begins with oxidation to D-talaric acid,...
Membrane lipids are amphipathic in nature. For each of the following, name the components of each...
a student is given a lab sample thant contains one of the ions listed below. after...
Calculate the change in molar Gibbs energy for the process NH3(l) --> NH3(g) at 1 atm...
Initially a sample of ideal gas at 323 K occupies 1.67 L at 4.95 atm. The...
For the reaction: 2H2S(g) + SO2(g) yields 3S(s) + 2H2O(g), the Delta G= -90.0 KJ/mol at...
A tank contains weak sulfuric acid containing 15% H2SO4 and 85% H2O (by mass). If 1000...
The equilibrium constant for the esterification of ethanol and aceticacid in an aqueous solution CH3COOH(aq) +...
Aqueous solutions of calcium acetate and potassium nitrate are allowed to mix. Which one of the...
1. What is the pH of a 0.000682 M solution of NaOH? 2. a)What is the...
What is the compound H2NCH2CO2-? and why is this a strong chelating agent whereas SCN- and...
How many milliliters of 0.270 M HBr are needed to titrate each of the following solutions...
How does pH control the forms of carbonic acid, bicarbonate, and carbonate in water and the...
Determine the pH of the solution when 20.00 mL of 0.1563 M aniline hydrochloride (C6H5NH3+Cl-) is...
Hydrochloric acid (HCl) is considered a strong acid. For many problems, it is convenient to assume...
Water Hardness Lab follow up Questions Trial Initial EDTA Volume (mL) Final EDTA Volume (mL) Total...
Consider the reaction: 2 Na3PO4(aq) + 3 Cu(NO3)2(aq) → Cu3(PO4)2(s) + 6 NaNO3(aq) What mass of...
Determine the pH of an HF solution of each of the following concentrations. a. .290 M...
The makers of the analgesic Bufferin claim that their product buffers the fluid of the stomach...
The equilibrium constant Kc for the reaction: C <--> D + E is 7.50x10^-5. The initial...
‹
1
2
...
88
89
90
91
92
93
94
...
124
125
›
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
Ask a Question
ADVERTISEMENT
Active Questions
Why is a normal distribution converted to a standard normal distribution?
asked 22 minutes ago
Problem Statement: Consider a mail order database in which employees take orders for parts from customers....
asked 22 minutes ago
9. This question involves the use of multiple linear regression on theAuto data set. (using R...
asked 25 minutes ago
Single Phase Induction Motors and Universal Motors are the same? (What are the difference) Synchro’s and...
asked 28 minutes ago
1. Simplify the following functions using only Boolean algebra Laws. For each resulting function, sketch the...
asked 38 minutes ago
Design an algorithmic flowchart for the given FASTA dataset, assuming all the files are of correct...
asked 38 minutes ago
WRITE IN PYTHON Using any large text file or any literature English book in .txt format....
asked 48 minutes ago
When planning a memory upgrade, you discover that Windows 8 reports 4 GB of memory installed....
asked 1 hour ago
Please show all work: Convert the following decimal numbers into 8-bit binary numbers in the 2’s-complement...
asked 1 hour ago
Write a program that prompts the user to enter the weight of a person in kilograms...
asked 1 hour ago
C++ Pig Latin Lab This assignment uses pointers to perform something done often in computer applications:...
asked 1 hour ago
QUESTION 46 Bank managers at Dime Community Bancshares consider commercial real estate loans as riskier assets...
asked 1 hour ago