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Chemistry Questions
The decomposition of a compound follows a first order kinetics with a rate constant of 0.0432...
Use stock solution of 0.5 M CuSO4 to make up the following solutions by serial dilution...
How many valence electrons are in the t-butanol molecule (CH3)3COH
What is the Molarity of 40mL of an EDTA solution that is titrated with 32.0mL of...
How many atoms are in 2.402 g of Carbon? 1.45 x 1023 atoms 1.204 x 1023...
I been studying for a test and the guide has the answers to the questions and...
Part 3 – Put it all together. Calculate the concentrations of all species in a 0.330...
Consider the reaction 4HCl(g) + O2(g)2H2O(g) + 2Cl2(g), calculate G for this reaction at 298.15K if...
Using a planar pentagon representation for the cyclopentane ring, draw structural formula for trans-3-methylcyclopentanamine.
You measure 2.95 mL of a 50% NaOH solution by weight (its density is 1.53 g...
What is the pK of a monoprotic acid (HA) if it is known that at pH...
A graduate cylinder contains 100.0 mL of water. Some of the water is used to fill...
If a proton (1.673 X 10-27 kg) is observed to have a wavelength of 1.65 X...
.(12pts) Identify the group of elements that correspond to each of the following generalized electron configurations....
What is the maximum amount of ammonium chloride that can be dissolved in 20 mL of...
Two electrolytic cells are connected in series and the same current flows through both. In one...
Briefly describe two techniques for minimizing the effects of water on the FTIR spectra of proteins.
give complete ionic equation for the reaction of aqueous solution of lithium with copper II nitrate.Thanks...
consider the following reaction for the combustion of octane 2C8H18+25O2=16CO2+18H2O what volume of carbon dioxide gas...
What is the predicted carbonyl absorption for each compound? benzaldehyde cyclohexanone propionaldehyde propanoic acid phenyl acetate...
Wastewater discharged into a stream by a sugar refinery contains 3.05 g of sucrose (C12H22O11) per...
Rank N2 and O2 from low to high absolute entropy (assume standard conditions)
Describe any non-human sources of error and how they impact the results in Molar mass of...
Solid RbF has the so-called NaCl structure. The shortest distance between the centre of a rubidium...
Calculate the change in pH when 0.304 mol H+ is added to 1.00 L of each...
Construct an approximate molecular orbital energy diagram for homonuclear diatomic F2. Considering only the valence atomic...
The combustion of ethene C2 H4 is an exothermic reaction. C2 H4(g) + 3O2(g) ---> 2CO2(g)...
Gold is isolated from rocks by reaction with aqueous cyanide, CN−: 4Au(s)+8NaCN(aq)+O2(g)+H2O(l)→4Na[Au(CN)2](aq)+4NaOH(aq) The [Au(CN)2]− ion can...
It is impossible for an aqueous solution to have a negative pH. answer choices: True False
cooking with an electric stove can have a negative effect on the environment , just as...
Hello! Can someone show me how to do this, my prof. didn't go over it in...
The activation energy of a certain reaction is 30.1 kJ/mol . At 28 ∘C , the...
How many grams of solid ammonium bromide should be added to 2.00 L of a 0.167...
What is the net ionic of 2HCl + K2CO3 -> 2KCl + CO2 +H2O? or do...
Given the generic balanced reaction equation 2A + 4B → 7C + 8D, how many moles...
Write the balanced COMPLETE ionic equation for the reaction when Sr(ClO₄)₂ and CuSO₄ are mixed in...
Glucose in biological material may be determined by reaction with o-toluidine in 6% glacial acetic acid...
The constant volume Molar heat capacity of ethane, C2H6(g) is 44.3 J/mol-K. When 9.0 kJ of...
(1). At 50 oC, the autoionization constant for pure water, Kw, is 5.48 x 10-14. The...
How many d and f orbitals total are present in the n = 4 shell of...
Which of the following compounds, 2-phosphopropanoic acid, or 2-phospho-2-propenoic acid, would have the higher phosphoryl group...
Calculate the pressure ( atm ) of a 33.6 g sample of CO gas that is...
which acid has the greatest acid strength acetic acid, CH3COOH, Ka=1.8 x 10^-5 formic acid, HCOOH,...
From the below molecules or polyatomic ions determine the VSEPR formula, if it is polar or...
If cricket balls represent oxygen atoms, how many of them should be found in our swimming...
Which of the following will have the lowest vapor pressure and which one will have the...
Given that: C2H2 (g) + 2 H2O (g) → C2H6O2 (l) ∆H° = - 198 kJ...
use the formula C6H12O2 todraw examples for each type of isomerism indicated. what is the degree...
Calculate the mass of solute required to make 2.70 x 10^2 ml of magnesium sulfate solution...
Which of the following is a characteristic of aldehydes? Select all that apply: a. Aldehydes contain...
1. When measuring the volume of an irregularly shaped solid, for the most accurate result, the...
Enzymes are often described as following the two-step mechanism: E+S⇌ES(fast) ES→E+P(slow) Where E = enzyme, S...
Elements found in the (blank) period of the periodic table, can never have more than 8...
what kind of filtiratio( gravity or vacuum) should be performed when one wants to further work...
Match the following aqueous solutions with the appropriate letter from the column on the right. 1....
During the Purification of Lactate Dehydrogenase (LDH) experiment, you will need 50ml of buffer A150. Buffer...
Consider the titration of 100.0 mL of 0.0200 M H3PO4 with 0.121 M NaOH. Calculate the...
2a Calculate the freezing point of a solution that is made from 39.9 g of a...
What are the products from the following single-replacement reaction? K( s) + H 2O( l) →...
What is the pH after a 50 mM phosphate buffer, pH 6.9 (pKa = 7.2) is...
An eccentric chemistry professor (not mentioning any names) stops in every day and orders 250ml of...
Which of the following has AG°f= 0 at 25°C? There may be more than one correct...
Purifying Mg2+ from sea water. Aqueous sodium hydroxide is added to an aqueous solution that contains...
A 50.0-ml sample of a 1.00 m solution of cuso4 is mixed with 50.0 ml of...
4. If 50 liters of 12% hydrochloric acid (HCl) is mixed with 80 liters of 40%...
A green laser pointer emits light with a wavelength of 528 nm. the frequency of this...
Determine the number of moles of C2H5OH in 147g of C2H5OH. Please show the conversion and...
In a polar aprotic solvent, which nucleophile will be more reactive? H2O or OH- I know...
Give and describe the two main mechanisms of surface enhanced raman spectroscopy
a. The solubility of potassium hydrogen carbonate (KHCO3) (100.115 g/mol) in water is 33.7 g/100 mL...
C2H4(g) + H2O(g) to CH3CH2OH(g) H° = -45.6 kJ and S° = -125.7 J/K The equilibrium...
A total of 619 cal of heat is added to 5.00 g of ice at −20.0...
Use Ksp values to determine the solubility of each sparingly soluble substance in its respective solution:...
Explain what is the principal source of H3O+ ions in 1.0 x 10-10 M HCl?
Explain why you would use NaOH for a liquid-liquid extraction of 2-phenylphenol. Explain in terms of...
How many grams of adipoyl chloride (1.25 g/mol) are in 20 ml of a 2% (v/v)...
What is the molarity of a NaOH solution if 1.01 mL of the solution was required...
Describe three different mechanisms or devices for selecting specific wavelengths for use in spectrophotometers. 3.What are...
Rubbing alcohol is composed of C, H and O only. Combustion of 0.255 g of rubbing...
How many moles of oxygen are in 8.9E-1 moles of CO_2 2 ? Only give...
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