| Question | Subject | Tutorials |
|---|---|---|
| Find the molecular formula of formic acid
Formic acid is responsible for the sting you feel when stung by fire ants. By mass, formic acid is 26.10% C, 4.38% H, and 69.52% O. The molar mass of formic acid is 46.02 g/mol. Find the mol … |
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| Depict the lewis dot structure of cnno2
Draw the Lewis dot structure of CNNO2 along with all possible resonance structures, labeling formal charges.
… |
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| Depict a six-carbon alkyne that can exist as diastereomers
Draw a six-carbon alkyne that can exist as diastereomers. The molecule should contain only carbon and hydrogen atoms.
… |
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| Compute the molar solubility of nioh2
A) Calculate the molar solubility of Ni(OH)2 when buffered at pH=8.0 B) Calculate the molar solubility of Ni(OH)2 when buffered at pH=10.0 C) Calculate the molar solubility of Ni(oh)2 when b … |
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| Explain a structure unambiguously
The following label was found on a bottle of liquid hydrocarbons in the laboratory of Dr. Ima Turkey following his disappearance under mysterious circumstances. Although the name defines a s … |
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| Compute the number of molecules in 7.00 moles h2s
Calculate the number of molecules in 7.00 moles H2S
Using Avogadros number calculate the number of molecules in 7.00 moles H2S
Calculate the number of moles of Cl atoms in 3.6x10^24 form … |
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| Calculate the volume of household bleach
Question- A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate the volume of household bleac … |
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| Compute the energy gap between the excited and ground state
If you put 120 volts of electricity through a pickle, the pickle will smoke and start glowing an orange-yellow color. The light is emitted because the sodium ions in the pickle become excite … |
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| Explain why is it quantitatively not acceptable to titrate
Why is it quantitatively not acceptable to titrate each vinegar samples with NaOH titrant to the same dark pink endpoint?
… |
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| Explain size of an axial substituent always result in higher
Does increasing the size of an axial substituent always result in higher relative strain energies for the axial conformation
… |
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| Explain the pkb values for the dibasic base
The pKb values for the dibasic base B are pKb1 = 2.1 and pKb2 = 7.8. Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.75 M B(aq) with 0.75 M HCl(aq).
(b … |
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| Which is the most acceptable electron dot structure 1. Which is the most acceptable electron dot structure for N2H2?
2. How many lone pairs of electrons are on the Xe atom in XeF6?
a. 1
b. 2
c. 0
d. 3
3. Which element, indicated b … |
Chemistry / General Chemistry | Get it Now |
| Explain a reagent bottle on the shelf labeled A reagent bottle on the shelf labeled 0.5 M NaCl was used in place of the 0.5 M CaCl2. Assuming C2O42- to be in excess, what would be observed as a result of using this reagent in this test
… |
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| Explain the lewis structure for -ch2cn The lewis structure for -CH2CN (that should be a superscripted negative sign to the left of the 1st C)
… |
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| Original concentration How many half lives will it take the c4h6 to decrease to 3.1% of its original concentration? the relationship of At/ A0= 0.50
… |
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| State the organic product of the reaction Draw the organic product of the following reaction between (1S,3S)-1-chloro-3-methylcyclopentane and methanethiol in the presence of sodium hydroxide. Include stereochemistry
Select all that apply: … |
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| Watt light bulb consumes A typical 100-watt light bulb consumes 100 J of energy per second. If a light bulb converts all of this energy to 400 nm light, how many photons are produced each second?
A) 5.0x10-28
B) 5.0x10- … |
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| Compute maximum mass of s8 produced by combining reactant What is the maximum mass of S8 that can be produced by combining 80.0g of each reactant? 8SO2+16H2S -> 3S8 + 16H2O
… |
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| What is the ph of the benzoic acid solution prior to adding prepare a pH=4.00 buffer starting from 1.50 L of 0.0200 M solution of benzoic acid (C6H5COOH) and an excess of sodium benzoate (C6H5COONa). 1. What is the pH of the benzoic acid solution prior to addi … |
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| State keq to calculate the scn- concentration Use the mean value that you determined for Keq to calculate the SCN- concentration in a solution Fe3+ concentration was 4.00 X10-2M and initial SCN- concentration was 1.00 X10-3 M. Is all of theSCN- i … |
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