JustAAA
Home
Questions
Share
Post a Question (with Answer)
Coins
Ask a Question
Log In
Sign Up
Home
/
Chemistry Questions
Search
Chemistry Questions
What is the formula for copper (I) bromide copper (II) bromide iron (III) bromide lead (IV)...
A sample of propane (20.4 g) is burned in 82.3 g of oxygen in a chemical...
The freezing point depression constant tells how the temperature changes for a 1 molal concentration of...
How would your calculations for the mass of Mg metal present in the sample have been...
The rate constant of a reaction is 6.7 × 10−3 s−1 at 25°C, and the activation...
What would be the saturation concentration (mol/L) of oxygen in a river in winter when the...
You have a reactor that is releasing Cd^(2+). Your effluent standards state that the concentration of...
The saturation pressure for an unknown substance has been fitted to temperature using the following Antoine’s...
Gallium is produced by the electrolysis of a solution obtained by dissolving gallium oxide in concentrated...
Rose Bengal is a chromophore used in biological staining that has an absorption maximum at 559.1...
During lecture, the following chemical equilibrium between nitrogen dioxide and dinitrogen tetroxide was presented and discussed....
During lecture, the following chemical equilibrium between nitrogen dioxide and dinitrogen tetroxide was presented and discussed....
Answer the following question about the titration of 80mL of .100 M H2SO3 with .100 M...
what is the chemical formula for these ionic compounds? 1. sodium and oxygen 2. lithium and...
Gel filtration chromatography is frequently used to remove salts such as NaCl from a protein preparation....
A compound is known to have a free amino group with a pKa of 8.8, and...
Membranes are used to separate gases since membranes tend to pass smaller molecules through them at...
An unknown solution may contain any of the seven cations listed below. One student preformed a...
For the reaction A+B+C→D+E, the initial reaction rate was measured for various initial concentrations of reactants....
29. Which would be isotropic: (a) a nylon filament, (b) an extruded pipe, or (c) ebonite?...
The complete combustion of acetylene, C2H2(g), produces 1300. kJ of energy per mole of acetylene consumed....
Consider the following reaction: CO(g)+H2O(g)⇌CO2(g)+H2(g) Kp=0.0611 at 2000 K A reaction mixture initially contains a CO...
Phenol (Molecular Weight= 94.11 g/mol) is a low melting point solid used in DNA purifications. The...
Which of the following is TRUE? Which of the following is TRUE? The equivalence point is...
How many aromatic rings does it take for helicity to arise?
What is the energy of photon of red light that has a wavelength of 656nm? 2.what...
A reaction mixture is formed by mixing 2.0 mL of 0.010 M Fe3+ and 2.0 mL...
An organic compound contains 49.3% carbon, 6.9% hydrogen and the remainder oxygen. Determine the empirical formula...
What is the energy of photon of red light that has a wavelength of 656nm? 2.what...
In Gel permeation chromatography or GPC, will small molecules come out of the column slower or...
Using a Table of thermodynamic data, calculate the change in Gibbs free energy for each of...
9. Phenylisothiocyanate (PITC) is called Edman’s Reagent and used in sequencing proteins, an unknown decapeptide is...
How many silver atoms are in a single silver nanoprism with the shape of an equilateral...
To what volume should you dilute 30 mL of a 11 M H2SO4 solution to obtain...
Calculate the final concentrations of the following aqueous solutions after each has been diltuted to a...
1.) The rate constant for a certain reaction is k = 3.40×10−3 s−1 . If the...
Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is added to 100.0...
A cyanide solution with a volume of 22.00 mL was treated with 25.00 mL of Ni2...
Limestone consists mainly of the mineral calcite, CaCO3 (molar mass = 100.087 g/mol), The carbonate content...
Write the stepwise acid-base reactions for the following ions in water. Write the correct acid or...
The concentration of copper (II) sulfate in one brand of soluble plant fertilizer is 0.070% by...
How many grams of oxalic acid dihydrate are needed to prepare 100.mL of a .200N solution...
how many grams of solute are needed to prepare each of the following solutions? a. 1.000...
At 20 ∘C the vapor pressure of benzene (C6H6) is 75 torr, and that of toluene...
what is the molality for13.7g of sucrose in 668g of water
A nitric acid solution, pH=2.7, results from NOx removal from a stack gas. Neglect ionic strength...
What mass of water is contained in 160 grams of 22.0% (m/v) KCl solution (Density of...
The calcium ion selective electrode (ISE) measures 11.8 mV in a 1 mM Ca2+ solution at...
A reaction has a rate constant of 1.26×10−4 s−1 at 28 ∘C and 0.233 s−1 at...
1. Consider the reaction 2H3PO4 yields P2O5+3H2O Using the information in the following table, calculate the...
Given: NO3- + 2Fe2+ + 3H+ --> 2Fe3+ + HNO2 + H2O Calculate the potential of...
both naphthalene and para-dichlorobenzene are effective moth repellents what property of these chemicals allow them to...
A 50.00 ml aliquot of 0.1000 M benzoic acid (Ka= 6.28x10^-5) was titrated with 0.2500 M...
Mass of water 200 g Volume of water 200 mL Fuel Initial mass of fuel (g)...
A 25.199 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is...
Below are listed the atomic weight, density, and atomic radius for three hypothetical alloys at room...
The severity of a tropical storm is related to the depressed atmoshperic pressure at its center....
1.Chemical kinetics 4NH3 + 3O2 = 2N2 + 6H2O Given, rate of N2 = 0.45 Moles...
The tea is poured into a ceramic teacup and a metal spoon is placed in the...
A sample of 4-toluic acid is contaminated with a small amount of sand & toluene. Using...
The combustion of carbon, as graphite, in oxygen forms carbon dioxide. How much work is done...
2. What would be the effect of each of the following on the equilibrium involving the...
4) What would be the effect of each of the following on the equilibrium involving the...
5) The binding of oxygen to hemoglobin (abbreviated Hb), giving oxyhemoglobin, (HbO2) is partially regulated by...
What is the molecular weight of emthyl oleate? What are the relative intenities of the M...
1. Draw all possible products: containing only one bromine 2. Draw All possible products: containing two...
3) A small percentage of nitrogen gas and oxygen gas in the air combines in an...
Which of the compounds below would be least soluble in H2S C6H10 KBr NaOH NaBr Which...
Write the molecular, ionic and net ionic equations of fe2(so4)3 and LiOH
Your boss asked you to evaluate a new analytical method for the determination of creatinine in...
Write a balanced net ionic equation to describe dissolving Fe(OH)2 in hydrochloric acid a balanced net...
Astronomers have detected hydrogen atoms in interstellar space in the n=746 excited state. Suppose an atom...
A certain element crystallizes in a face-centered cubic lattice. The density of the crystal is 22.67...
The world rate of oil consumption in 2013 was about 4200 million tonnes per year. •...
please provide2 examples ( explain 2-3 sentenses max) of cation pi interactions found in nature
how were the original measurements of increases in chlorine monoxide and the stratospheric ozone depletion over...
If 168 grams of radioactive iron (59-Fe) is recived in the lab today, what percentage of...
The heat capacity of a diatomic gas is greater than the heat capacity of a monatomic...
The first order reaction, SO2Cl2 --> SO2 + Cl2, has a half life of 8.75 hours...
Acid - Base Challenge Problem A student is given 3 beakers: Beaker 1- 50.0 ml...
‹
1
2
...
117
118
119
120
121
122
123
124
125
›
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
Ask a Question
ADVERTISEMENT
Active Questions
Suppose that 2.8 moles of a monatomic ideal gas (atomic mass = 4.7
asked 1 minute ago
Fill in the following table, using Big-O notation to give the worst and average-case times for...
asked 10 minutes ago
A TV show, Lindsay and Tobias, recently had a share of 10, meaning that among the...
asked 16 minutes ago
A solid disk of mass m1 = 9.5 kg and radius R = 0.19 m is...
asked 17 minutes ago
The international space station orbits the earth at about 200km above the earth's surface. An astronaut...
asked 18 minutes ago
When a mass of 4 kilograms is attached to a spring whose constant is 64 N/m,...
asked 22 minutes ago
Janet Broom and Darla Miller were employed as certified medication aide and cook, respectively, at the...
asked 22 minutes ago
What type of specifications are the examples below? Track lighting shall consist of 100-watt incandescent light...
asked 31 minutes ago
1. The fine particle of soil in Q4 has 30% Liquid limit and 14% Plastic Limit....
asked 48 minutes ago
Given that: 2Hg2+(aq)+2e−→ Hg2+2(aq) E∘=0.920V Hg2+2(aq)+2e−→ 2Hg(l) E∘=0.797V Calculate the values of ΔrG∘ and K for the...
asked 1 hour ago
Consider this binary search tree: 14 / \ 2 16 / \ 1 5 / 4...
asked 1 hour ago
Let V be the volume of a cylinder having height h and radius r, and assume...
asked 1 hour ago