Chemistry [Archive] - Page 5 - Ask Me Help Desk

Why does a bottled carbonated beverage fizz when you take the cap off? (1 replies)
Explain why potassium chloride will not dissolve in carbon tetrachloride, CCl4 (1 replies)
Celsius temp (1 replies)
General Chemistry- Buffers! (1 replies)
Butane, C4H10, has a boiling point of -0.5 ?C (which is 31 ?F). Despite this, liquid (4 replies)
Reaction of hydrochloric acid with zinc metal (1 replies)
Optical activity of water? (1 replies)
How can I teach myself Chemistry on a college grade level? (4 replies)
I'm unsure as to answer these questions. Can someone help? (2 replies)
Movement of atoms? (2 replies)
Chemistry mcq (2 replies)
I failed an EtG test, I didn't drink, and I'm pregnant. (1 replies)
Chemistry question about Organic Chemistry (9 replies)
Chemistry Question about ThermoChemistry (6 replies)
Clear my doubts in chemistry (9 replies)
Stiochiometery (3 replies)
Standard Enthalpy claculation (1 replies)
I want to know about standard enthalpy of NaAl(SO4)2 (1 replies)
What is the differnce of molar enthalpy and enthalpy of formation? (5 replies)
What I sthe molecular weight of acetic acid that will form assuming complete combusti (1 replies)
Is there water vapor in a vacuum? (4 replies)
Please Help ! (3 replies)
Spider (1 replies)
Laboratory apparatus and their uses? (1 replies)
Why is HCl added to a solution (3 replies)
Write the balanced molecular reaction (2 replies)
Would a 150 lb. Male pass an ETG test 65 hours after having 1 drink? (6 replies)
Redox titration (1 replies)
Mixing ideal gazes and enthorpy (1 replies)
An unknown dissolves in water (1 replies)
Convert grams to moles formula? (7 replies)
Flavonoids (1 replies)
HPLC profiling of bacteria (0 replies)
How to get the ph of copper sulfate 0.1M? (1 replies)
Calculate the ppm CaCO3 hardness of a water sample (1 replies)
Grams of Sulfur (1 replies)
Sulfur content by mass (1 replies)
Dew Point? (8 replies)
How to balance nitrogen plus oxygen plus water yields hydrogen nitrate (1 replies)
Which of the following, when added to water, creates a solution with the highest conc (1 replies)
For this reaction what are the products that I can get Alcoholos Organic chemistry (11 replies)
What would the equation be for the dissolution of shellac (C31H27NO4) in ethanol? (5 replies)
Equilibrium and enthalpy (2 replies)
If I fractionally distillate A + B (miscible liquids); and if I obtain pure A in the (7 replies)
Sn1 sn2 best leaving groups and about the solvents organic chemistry, (15 replies)
Molar calculations involving washing up liquids/detergents and the foam produced (5 replies)
Dilutions (1 replies)
Work against the external pressure (4 replies)
PH in low pressure boiler (1 replies)
Find the Edge (geometry) and the Volume of Unit cell (23 replies)
What is a foofighter (3 replies)
Chemistry: Ideal gas laws (1 replies)
Chemistry question: We define osmotic pressure as pressure needed to be applied to st (8 replies)
Three helium nuclei fuse together, forming one carbon nucleus. The mass of carbon is (2 replies)
What is the mass of the copper block? (0 replies)
When you have a inverted thistle funnel with a semi-permeable membrane around it (10 replies)
I was asked to draw (S)-5-heptyn-3amine I know how to draw it, but , what does the (1 replies)
Does osmosis always need an osmotic pressure to stop? (1 replies)
Balanced equation (8 replies)
What the difference between anti markovnikov rule and markovnikov rule (3 replies)
If for example you have a container with a semi-permeable membrane filled with 2M sol (3 replies)
E say that it is because of change in column height that causes osmosis to stop. (3 replies)
Write the ionic equation for the dissolving of lead chloride in hot water. (1 replies)
Mesomeric effect of phenol due to lone pair of electrons (3 replies)
Which conformer is more stable of both and why (3 replies)
Kinetic energy of gases (13 replies)
Chemistry science fair project idea (1 replies)
Before a trip from New York to Boston, the pressure in an automobile tire is 1.8 atm (4 replies)
What type of reaction is NaHCO3 = Na2CO3 CO2 H2O? (1 replies)
Buffer capacity (3 replies)
Dipole and Resonance (2 replies)
Which type of chocolate melts the fastest? (8 replies)
Optical isomers? (1 replies)
VESPR in formula structure of vitamin C . (21 replies)
Chemistry (1 replies)
What mass of 30% solution contains 60.0 grams of water? (1 replies)
Low energy in Lewis structure+Quantum numbers. (7 replies)
Oxygen gas is collected over water at 25 degrees C. The total pressure of the gas is (1 replies)
Amide bond structure (1 replies)
Moles (2 replies)
How to find the thickness of aluminum foil in atoms? (1 replies)
Write an equation of the following reactiom? (1 replies)
Equation:reaction between iron(II) solution, conc sulphuric acid and bicarbonate (1 replies)
How to calculate moles remaining? (1 replies)
%total acidty calculation (1 replies)
Questions about Nuclear meltdown, power plant disasters, control rods, solutions (4 replies)
Science balancing equations (1 replies)
Why liquid nitrogen has strength to convert anything into ice? (2 replies)
Excited state (6 replies)
When sugar substituted cpd is acid hydrolysed for the determination of absolute confi (1 replies)
How to solve for a concentration using equilibrium constant? (1 replies)
What year was the activity series created? (1 replies)
Neutralization of equation (1 replies)
Write skeleton equations (1 replies)
How many moles of SO2 are required to make 107 mol CS2? (1 replies)
How many moles of carbon monoxide form at the same time that 0.233 mol CS2 forms? (1 replies)
How many moles of carbon are needed to react with 5.41 mol SO2? (1 replies)
Magnesium and hydrocloric acid (1 replies)
If you react CuSo4 with salt-water what can be produce (1 replies)
High pressure boilers have low ph, phosphate and other while low pressure boilers (3 replies)
Lewis structure (6 replies)
Electrolysis (1 replies)
Chemistry help on finding volume (1 replies)
Electrons representation formulas (9 replies)
What test is used to prove that a colorless liquid contains water? (3 replies)
Relate the number of moles of a substance to the number of particles in it (1 replies)
How to calculate moles of acid present? (1 replies)
When an atom loses an electron (2 replies)
Hplc calibration (1 replies)
Uv calibration? (1 replies)
How to calculate the amount of heat absorbed by ice as it melts (2 replies)
How do you get milileters to grams? (2 replies)
How do you get the heat quantity in joules? (1 replies)
Essential oils (5 replies)
How to solve for the 3 variables of molality? (1 replies)
What do you mean by ppm as CaCo3 (6 replies)
Valence electron (6 replies)
What mass of Na2SO4 will result from the reaction of 22.7g of NaOH and 10g of H2SO4 ? (2 replies)
Calculate the volume of the gas at 25 degrees C and 975 kPa (1 replies)
Chemistry (2 replies)
If the column of water in the... (4 replies)
Smelting furnace problems (1 replies)
Chemistry (6 replies)
Chemistry (1 replies)
Chemistry... help (1 replies)
Products of CLO3 I H? (1 replies)
What is the equations for lead ii hydroxide plus hydrochloric acid? (2 replies)
How to find predicted volume (1 replies)
Chemistry... (3 replies)
Consider the following reaction for which Kp = 0.0752 at 480.0 C. 2 Cl2 (g) + 2 H2O (1 replies)
Is there a process to break the bonds in plastics to yield simpler compounds? (2 replies)
Wavelength Calculate (28 replies)
Why do some drug tests show a trace of a drug that was Not used? (0 replies)
Why I got the absorbance for glucose is 0.9 and above? (0 replies)
I want to know the active ingredients use in a good quality freckle cream. (1 replies)
Show that (curl h/curl p)at contt temp=-cp(curl T/curlP)at constt h? (3 replies)
Will reaction occur Fe + KI (1 replies)
Draw a sketch graph of pV vs T for an ideal gas? (1 replies)
Max [Ni2+] ion in H2O @ 25C saturated w/ 0.25 M H2S maintained @ pH 2.9 w/ HCl? (0 replies)
How long will it take 1200g out of 1600 of this isotopes to decay (1 replies)
Calculate mass of Fe 56 (4 replies)
Alkali and Alkaline earth metals form only 1 and 2 ions respectively why? (6 replies)
Why boiling point and viscosity of H2SO4 are high? (1 replies)
Why alkali metals have largest radii? (1 replies)
Why Na+ ions are smaller than sodium atoms? (2 replies)
Hydrogen gas iron (111) oxide powder yield to form liquid water solid iron powder (2 replies)
Ferrofluid question (0 replies)
Mass of precipitate formed (1 replies)
Why aqueous solution of complex hydrides is basic in nature? (3 replies)
The number of moles of oxygen produced/consumed in the experiment.. (10 replies)
How do you find protein concentration? (1 replies)
What is the oxidation number of the oxygen atom in H2O2 (1 replies)
Molarity (1 replies)
According to the octet rule what does a sulfur atom have the tendency to do? (2 replies)
What ions are considered unstable? (1 replies)
What is the molar mass of hydrogen gas (1 replies)
BrCl5 has 90degree angles or not ? (3 replies)
Reactants (3 replies)
What is ceramic?what is diffrence between ceramic &stainless steel? (1 replies)
Mass, grams, volume.. (3 replies)
Moles (1 replies)
What is the word equation of methane combinded with oxygen? (1 replies)
How do you balance out chemical equations? (1 replies)
Help! (1 replies)
Calculate overall energy changes in kilojoules per mole for MgF(s) and for MgF2(s). (1 replies)
Would heated phosphoric acid have any reaction on basalt fiber? (1 replies)
Polarity (5 replies)
Creating Solutions - Help on Lab Questions (1 replies)
Half Oxidation reaction (2 replies)
Interactions which hold the polypeptide chain together urgent help pleas (4 replies)
In the bond between a hydrogen atom and an oxygen atom in a water molecule help pleas (1 replies)
Decomposition Chemical Reactions (1 replies)
HCl solution (20 replies)
Even on warming why hexane does not dissolve in concentrated H2SO4? (4 replies)
Whatis nodal plane ?where nodal plane in pie bond of ethene is located? (2 replies)
Cyclohexane is less denser then water?explain how (5 replies)
How many valence are used to make pi bonds in ethyl acetate . A.8 b.13 c.2 d.26 (9 replies)
Predict the molecular geometry of the ammonium ion,nh4 (5 replies)
Chemical equation (1 replies)
Help please (1 replies)
How many moles of hydrogen ions are liberated when 0.4673 mol of xylenesulphonic acid (2 replies)
NaOH + CO2 yields NaHCO3 + H2O balanced? (2 replies)
When hydrogen gas and iodine gas are mixed in a vessel what happens pleas help.. (3 replies)
Question about calculation (5 replies)
Solubitlity of compounds (1 replies)
Is it possible to artificially make a blue diamond ? (1 replies)
I need urgent help with this chemistry problem pleas! (2 replies)
Mol Ratio (16 replies)
What does the energy released in a nucleon reaction come from (2 replies)
Precipitation problem (1 replies)
What are the number of grams of Li3N? (2 replies)
How many molecules of H2 arre produced by the reaction of Sn with 20L HF? (1 replies)
The synthesis of acetaminophen (2 replies)
Request for learning material (chemistry ) (3 replies)
How does ammonia break down cellulose to produce biofuels (1 replies)
A graph of EAgCl,Ag against ln c (1 replies)
Determine the final volume of 8.97 grams of (NH4)2CO3 to make a 0.250-molar solution (1 replies)
4.67 moles of Li2SO3 dissolved to make a 3.89 M solution? (1 replies)
What is the effect of potassium thiocyanate on hair? (0 replies)
Help me find the volume of this pH (1 replies)
Human chemical reaction (1 replies)
Concentration of the emulsion (3 replies)
How long does beer show up in urine test (1 replies)
Stoichiometry Problem (1 replies)
What is the difference between Octane and Cetane? (1 replies)
How do you crack a chemical? (2 replies)
Please help me with this Chemistry question. Please. (5 replies)
Solve my chemical equation? (3 replies)
What is the word equation for: CH4 O2 -> CO2 2 H2O (1 replies)
Darzen reaction ? Help for mechanizm? (11 replies)
Covert 3.00 moles AsS3 to grams (3 replies)
1)Solubility In Water. 2) optical activity (11 replies)
Mending a tear in polypropylene (1 replies)
How many moles of oxygen are in 7.4 moles of copper(II) permanganate? (4 replies)
Why caffeine is use to calibrate hplc (0 replies)
Easy Questions 1)find the maximum possible amount 2)Electrical resistance (10 replies)
Is it true elements in the same period have the same number of shells (energy level) (1 replies)
Write the monomer of the polymer (2 replies)
Chemistry Help (4 replies)
How to know what things are in given compounds (1 replies)
Materials with activity Optical (26 replies)
Nitrogen (13 replies)
Help on high school chemistry problems! (1 replies)
Chemistry? I'm supposed to find the answers on my own, but any help is appreciated (2 replies)
Mechanism of ruff degradation (1 replies)
Chemistry word equations (1 replies)
Lead yields sulfuric acid? (4 replies)
2c4h10 13o2=8co2 10h2o write the mole ratio of c4h10 to o2 (1 replies)
Structural isomers (4 replies)
Chemical Equation for corrosion of Iron in diff. Set-ups (3 replies)
How to calculate moles of radium? (1 replies)
How would you prepare anhydrous iron(III) chloride, FeCl3? (7 replies)
Why does benzaldehyde produce a neutral solution in water? (5 replies)
Nuclear fission is an example how to... (3 replies)
Result when you add kerosene plus bromine (1 replies)
Balance SiCL4+H2o (2 replies)
Glucosamine (1 replies)
Methanol ingestion (2 replies)
Which acids and metals react with each other (1 replies)
Effect of potassium bisulfite as food preservative (1 replies)
Wasps (2 replies)
How many atoms of carbon contain the hidrocarbures? (14 replies)
PH with the formula c=n/v (3 replies)
What mass of gold contains the same number of atoms as 117.86 g of Cobalt? (1 replies)
How different gas affect pH in aqueous solution (3 replies)
How to know the content of beta carotene in a solution? (2 replies)
Neutralization Equation (6 replies)
Consumption calculation on ppm (1 replies)
3 easy questions about potassium (10 replies)
2 Questions about base and acid (23 replies)