# Chemistry Questions and Answers

how I can prepare thiobarbituric acid for detection of malondialdehyde?
How I can produce H2O2 or from where I can get the methodology to produce H2O2?
How important is aluminium in Australia?
How is a titration performed?
How is a water molecule built up?
how is acrylamide solution useful for textile industries?
how is ammoni gas is prepared?
How is ammonium nitrate and Redox Reactions used in industry?
how is ammonium sulphate made in industrys?
How is an empirical formual like and unlike a molecular formula?
How is an insoluble hydroxide tested for amphoteric behavior?
how is aniline produced from anilinehydrochloride?
How is energy turned into heat?
How is food cooked on molecular level?
how is Gadolinium mined or collected?
how is gadolinium refined to pure?
How is helium made?
How is Hydrogen produce in Industry?
How is Iron Sulphate made industrially?
How is it possible for a compund to have both ionic and covalent bonds?!?
How is it possible that a person can feel cold after an endothermic reaction if the reaction absorbs energy?
How is liquid oxygen produced?
how is mass made?
how is natural gas separated into its various components?
how is nitrogen harmful and / or helpful in the human body?
How is Physostigmine Synthesized?
how is platinum produced?
how is polythen made?
how is pure oxygen gas made??
How is radioactivity taken into the body?
How is Rocket engine fuel ignited?
How is salt formed ?
How is Silver Chloride used industrially?
How is sugar cane separated to form sugar?
How is sugar purified in India?
How is Sulphanilamide produced in industry today?
how is the bomb constructed to ensure that it does not go off immediately?
How is the calorie content of foods experimentally measured?
how is the colour in fireworks put in?
How is the diffusion of oxygen into blood a chemical change?
how is the geometry of simple molecules determined using the VSEPR model?
How is the Gibbs Free Energy (Delta G) Related to the Reaction Rate of a Chemical Reaction?
How is the Kf of deionized water different from the Kf of tap water???
How is the law of conservation of mass applied in finding the empirical formulas of the hydrates?
How is the Nitrogen gas seperated from other gasses in the air?
HOw is the number of free electrons determined in a metal?
how is the partial pressure of a gas in a mixture calculated?
How is thermocol made & how is it given the different shapes?
How long does the chemicals from a cigerette stay in the body?
How long does it take for the concentration to drop?
How long does it take water to freeze?
How long does Liquid Nitrogen last in a Dewar canister?
How long does water have to be boiled to be safe?
how long will it take a person to run out of a 100 pound oxygen tank?
How long would it take for 1.50 moles of water at 100 C to convert steam if heat were added at 19 J/s?
How man ml if you know the mass produced?
how manny moles of oxygen are in .5 mole of Sodium metaperiodate ?
How many "mm" (Mililleters) in a pound?
How many acidic hydrogens do the molecules H2CO3 and H3PO4 have individually? Are these acids strong or weak?
How many atmospheres melt diamond?
how many atoms are in propylparaben?
how many atoms are there in a grain of sand aprox.?
how many atoms are there in a mole?
How many atoms are there in each of the following?
how many atoms in vinegar?
How many beta sheet and alpha helix does the Rossmann fold have?
How many board feet of wood would be required to replace 1500 gallons of water for heat storage?
How many calcium atoms are in 16.2g of calcium?
How many CO2 molecules are in 0.10 mole of CO2?
How many configurations are possible for the formula C2H5ClO?
How many covalent bonds are in a covalently bonded molecule containing 1 phosphorous atom and 3 chlorine atoms
How many cu m of butterfat must be removed from 500 cu m of milk containing 10% butterfat to reduce its conten
How many cubic feet of oxygen (O2) are needed to convert...?
How many degrees of temperature rise will occur when a 25.0 g block of aluminum absorbs 10.0 kJ of heat?
how many different elements make up everything on earth?
How many different hosehold items can be used to cause the old "Vinegar and Baking Soda Boom"?
How many different isomers are possible for a hydrocarbon with the molecular formula C4H10?
How many different structual formulas can be written for C6H14?
How many different structural formulas can be written for C5H11Cl?
How many electrons are in bonding orbitals ?
How many electrons are in bonding orbitals of N2-2 ?
How many electrons are shared by two atoms that form a triple bond?
how many electrons can be described by the quantum numbers n=3, l=3, ml=1?
How many electrons does a clorine (Cl) atom need to complete its octet?
How many electrons does it take to get the same mass as a proton?
How many electrons, nutrons and protons does Zinc have?
How many electrons,protons, and neutrons are in helium?
how many electrons...?
How many elements and how many atoms are indicated by the formula?
how many elements are found on earth?
How many elements have been "properly" named so far by the IUPAC?
how many enzymes are in one single cell? Why do we need so many?
how many enzymes are there in one single cell?
how many f orbitals have the value n=3?
How many fundamental vibrational modes do allene and acetylene have?
How many g. of NaCN would you need to dissolve in enough water to make exactly 375 mL of solution w/ a pH 10?
how many gallon in 250 k/g drum (liquid) with density of 1.40g/ml @25 deg c?
How many grams are in 1.5x10^25 molecules of CO2? Whats the volume of CO2 @ STP?
How many grams are in one kilojoule?
how many grams are in one U.S. pound ( 1 lb. )?
how many grams in 1 liter?
how many grams in 100 ml of water?
how many grams in 500ml of water?
How many grams of PbCl2 will disslove in 0.803 L of a 0.670 M Pb(NO3)2 solution ?
how many grams of Al are in 21.7g of Al2O3?
How many grams of antifreeze, C2H4(OH)2, would be required per .5kg of H2O to prevent the water from...?
how many grams of Au2S can be obtained from 1.17 mole of Au?
How many grams of C?
how many grams of calcium hydroxide are needed to react completely w/ 50g hydrochloric acid according to this?
How many grams of carbon dioxide are contained in 550 mL of this gas at STP?
How many grams of CO2 are in one cc of dry ice?
How many grams of CO2 are produce if 25.0 grams of C6H6(benzene) was burned?
How many grams of copper oxide may be reduced by 10 grams of hydrogen?
How many grams of H2(g) react with excess Sn02(s) if 154. Grams of Sn are produced SnO+2H2(g) Sn(s)+2h20(g)?
how many grams of H2O do I need to make 4 grams of hydrogen gas and 32 grams of oxygen gas?
How many grams of HBr must be dissolved to make 1.0 L of 2.0 M HBr solution?
How many grams of hydrogen are produced by the action of hydrochloric acid on 50 grams of zinc?
How many grams of KCL can dissolve in 100.0g of water at 65 C?
How many grams of lead in a 0.500 ppm lead containing, 8.0 fluid ounces of fruit juice?
How many grams of mercuric oxide are needed to produce 100 liters of 02?
How many grams of mercuric oxide are needed to produce 100 liters of O2?
How many grams of mercuric oxide are needed to produce 96 grams of oxygen?
How many grams of MgCl2 do I need to make a solution of 0.05 M Mg 2+ that is 14000 liters?
How many grams of NaCN would you need to dissolve in enough water to make exactly 375 mL of solution with a pH
How many grams of NaCN would you need to dissolve in enough water to make exactly 375 mL of solution with a pH
How many grams of NaNO2 form when 599 g NaNO3 react? The yield is 85% 2 NaNO3(s) 2 NaNO2(s) + O2(g)?
How many grams of NaOH are contained in 270.0 mL of a 0.550 M sodium hydroxide solution?
How many grams of NaOH is needed to make 4 L of a solution with a pH of 7.4?(molecular wt. of NaOH is 40 g/M)?
How many grams of oxygen are needed to react completely with 10 moles of methane(ch4)?
How many grams of PbCl2 will disslove in 0.725 L of a 0.626 M Pb(NO3)2 solution ?
How many grams of phosphine (PH3) can form by the reaction of 33.0 g phosphorus and 90.0 L H2 gas at STP?
How many grams of phosphorus can be make from 100g of P2O5 using the following reaction 2P2O5+10C-->P4+10CO
How many grams of phosphorus react with 36.5 L of O2 at STP to form tetraphosphorus decaoxide?
How many grams of salt added to water would equal 1 mol?
How many grams of salt, sodium chloride, are contained in 1000.0 mL of ocean water, if the concentration is 0.
How many grams of sodium chloride do you need to make 125mL of a 1.5 M solution?
How many grams of sodium acetate were added ?
How many grams of sodium acetate were added ?
How many grams of sodium acetate were added ?
How many grams of sodium chloride are required to react with 196 grams of H2SO4?
How many grams of solid BaSO4 form when 25.0 mL of 0.160 M BaCl2 reacts with 68.0 mL of 0.055 M of Na2SO4?
how many grams of solute are needed to prepare 100.0 ml of a 155 ppm solution of urea in water?
How many grams of solute are present in 90.0 mL of 1.33 M CoSO4?
How many grams of sugar, C12H22O11, are present in 0.500 moles of sugar?
How many grams of sulfur (S8) would have to be dissolved in 110.0 g?
How many grams of sulfur (S8) would have to be dissolved?
How many grams of sulfur (S8)?
How many grams of table salt would have to dissolved in 120.0g of water to lower the freezing point by 1.30* C
how many grams of TNT, C7H5N3O6, are there in 0.665 moles?
How many grams of water should you add to 32.5 g of sucrose, C12H22O11, to get a 0.850 m solution?
How many grams of zinc chloride are produced when 3255 grams of zinc react with hydrochloric acid?
How many grams?
How many hours will it take to reduce the concentration to 1 / 64 ... I dont even know how to attept this,help
How many hydrogen atoms are in a molecule of sulfuric acid (H2SO4)?
how many hydrogen atoms are in C=C=C=C?
how many hydrogen bonds hold RNA and DNA together?
How many Hz are in 350 GHz?
How many inner, outer, valence electrons that are present in an atom of Fe and of F?
How many iron atoms are in 2.0 moles of iron?
How many isomers are there for the compound C14H30?
how many Killogram are in a gram?
How many Kilograms of iron can be recovered from 639 kilograms of the ore Fe2O3?
How many kJ are removed to convert 1.75 moles water from liquid at 0°C to solid at 0°C?
How many kJ heat absorbed when 1 L H2O heated from 18 degrees C to 85 degrees C?
How many L of hydrogen chloride may be produced by reacting sulfuric acid with 174 g of sodium chloride?
How many Liters of a 0.1154 M HCl solution are required to neutralize 0.4075 grams of TRIS?
How many liters of hydrogen are needed to produce 100 liters of ammonia by direct combination with nitrogen?
How many liters of hydrogen are needed to reduce 120 grams of copper oxide?
How many liters of hydrogen sulfide may be produced from 264 grams of ferrous sulfide?
How many liters of hydrogen sulfide may be produced from 264 grams of ferrous sulfide?
How many liters of hydrogen sulfide may be produced from 264 grams of ferrous sulfide?
How many liters of oxygen may be obtained by electrolysis of 900 grams of water?
How many lone pairs are on the central atom of AsF5?
how many micromol are in 1.5 nanograms of a substance whose mol weight is 323 ?
how many milliliters are in a cup?
How many milliliters of 0.155 M HCl are needed to neutralize completely 45.0 mL of 0.101 M Ba(OH)2 solution?
how many milliliters of 0.400M HBr solution can be made from 50.0 mL of 8.00M HBr solution?
How many milliliters of 0.560 M NiCl2 contain 3.00 g of solute?
How many milliliters of 0.750 M Pb(NO3)2 solution are required to react completely with 1.00L of 2.25 M NaC?
How many milliliters of 1.50 M H2SO4 are needed to neutralize 25.0 g of NaOH?
How many milliliters of 1.50 M KOH solution are needed to supply 0.130 mol of KOH?
How Many ml of 0.150 M Hydrochloric Acid Are Required to Neutralize 0.250 g of Diethylamine?
how many mL of a stock solution of...?
How many ml of cyclopentadiene can be obtained from 20.0 ml of dicyclopentadiene if the mass of cyclopentadie?
how many ml of H are produced by the reaction of 0.75g of sodium metal with H2O?
How many mL of HCL do I need to make a 1M solution ( 1 L) ?
How many ml of HCl would you need to dissolve in water to produce 1L of 1 M of HCl?
How many ml of water should be added to 80 ml of concentrated formaldehyde to obtain a sol'n of 10% formalin?
how many ml's needed for 18.4M of H2SO4 to prepare 600ml of .10M of S2SO4?
How many molecules are there at s.t.p in 280cm of nitrogern gas?
how many molecules are there in 230 grams of Co Cl2?
How many molecules in one drop of water?
how many molecules of ATP are produced in the complete oxidation of stearic acid?
How many molecules of oxygen are represented by this formula?
How many molecules of water are present in 6.0g of water?
How many moles and grams of Fe(SO4) are in a 300 mg tablet?
How many moles and numbers of ions of each type are present in the following aqueous solutions?
How many moles are in 3.8 mg of Na2HPO4?
How many moles are in 50.0 g of each of the following substances:?
how many moles are in 6.27 x 10^24 formula units of sodium nitrate?