Chemistry Questions and Answers

  • What is the percent yield if 56.9 g of WO3 yields 41.4 g of tungsten?
  • What is the pH of a buffer solution...?
  • What is the pH of a propanoic acid/sodium propionate buffer after the addition of 10.0 mL of 1.0 M NaOH?
  • What is the ph of table salt?
  • What is the pH of the reaction compound of an alkaline battery and why does the battery work?
  • What is the pH value of concentrated hydrochloric acid?
  • What is the pH value of ethyl alcohol?
  • What is the pH’s of solutions with the following hydronium ion concentrations?
  • What is the POINT?
  • What is the pollenation?
  • What is the pressure (in torr) inside a 2.0 liter flask at 26°C and 27.2 grams of oxygen gas?
  • What is the pressure in the tank in terms of the following units?
  • What is the pressure of 2.8g of nitrogen gas (assume it is ideal) in a 10 liter container at 25 C?
  • What is the pressure of gas if 300 ml at 0.8 atm and 37degress C changes to 50 degrees C and 555ml?
  • What is the pressure of the gas in mm Hg?
  • What is the pressure of the gas, in atmosphere, inside the cylinder?
  • What is the principle behind on Thales first principle of water?
  • What is the principle,instrumentation and application of HPLC?
  • What is the procedure and chemicals used to make sheet magnets?
  • What is the procedure in making calcium wire?
  • What is the product and structure of the complex when iron ammonium sulphate react with salicylic acid?
  • What is the product of a reaction involving 1,3-cyclohexadiene and DBr?
  • What is the product of incomplete combustion?
  • What is the product of the Cu(NO3)2 + NH3? Is it just Cu(NH3)4 or Cu(NH3)4 + NO3?
  • What is the product of this chemical equation?
  • What is the product when 1 pentanol is oxidized? What about 2 pentanol?
  • What is the properties of matter?
  • What is the proton concentration in a solution at pH 4.0?
  • What is the purpose of citric acid in soft drinks?
  • What is the purpose of copper sulphate?
  • What is the purpose of each of the following components in the homogenizing medium?detergent, salt, EDTA?
  • What is the purpose of homogenizing the onion?
  • What is the purpose of iron in our body?
  • What is the purpose of sulfuric acid in nitration of bromobenzene?
  • What is the purpose of the gas argon in our atmosphere?
  • What is the quantity of sulphur and nitrogen dioxide in air in india?
  • What is the rate law for the following mechanism?
  • What is the ratio [HCO3-] / [H2CO3] in blood plasma?
  • What is the ratio at which different solutes effect the temp of boiling water ? how is this science topic?
  • What is the reaction mechanism involved when Fehling's A is made to react with Fehlings B?
  • What is the reaction quotient?
  • What is the reason behind naming the energy shells(orbits in which electrons revolve) as K,L,M,N...???
  • What is the reason that Fe has two different valences?
  • What is the reason/s that P exhibits two difference valences 3 and 5?
  • What is the reasoning for naming the shell of an atom as "K L M N" instead of "A B C..." ?
  • What is the red chemical substance in the little tubes on ceiling fire sprinklers?
  • What is the red substance found in some kinds of thermometers?
  • What is the reducing agent in the following oxidation-reduction equation?
  • What is the relation between covalent bond,electronegativity and ionic bond?
  • What is the relation of a temperature and a gas?
  • What is the relationship between the commercial prices of common metals; their actual abundances and relative?
  • What is the relationship between the effectiveness of the anatacid and the active ingredients?
  • What is the relationship between the intensity of blue colour and the rate of rusting?
  • What is the relationship between the weak force, beta decay and hadrons and leptons?
  • What is the relationship of chemistry to other science?
  • What is the representive of insoluble bases?
  • What is the residue left on the inside walls of a teacup?
  • What is the result of a reaction between potassium permanganate and hydrogen peroxide in the presence of acid?
  • What is the role if a catalyst in a chemical reaction ? define catalyst.?
  • What is the role of Albert Einstein in the development of the Nuclear Bomb?
  • What is the Role of analytical Chemistry and classification of analytical methods?
  • What is the role of anhydrous sodium sulfate in experimenting extraction?
  • What is the role of sodium carbonate and sodium sulfate in the isolation of caffeine from tea leaves?
  • What is the role of the wing top or fish tail during bending and drawing-out of glass tubing?
  • What is the scienctific formula for enzyme?
  • What is the scientific formula for triglyceride?
  • What is the scientific word for when ice turns into a gas(vapour)?
  • What is the significance of "direction" in crystal unit cells?
  • What is the significance of the calibration in glassware?
  • What is the size of a water molecule?
  • What is the smallest amylase (in terms of molecular weight) ever reported? I really want to know.?
  • What is the solubility in hexane & the action of water for period 3 oxides?
  • What is the solubility of acetanilide at 90 degrees celcius?
  • What is the standard enthalpy of formation of aqueous potassium chloride (KCl (aq) )?!!!?
  • What is the standard voltage of tin being oxidized?
  • What is the standard voltage of tin being reduced?
  • What is the stepto flowmetry in chemistry?
  • What is the stereochem of wittig rxn products and why?
  • What is the stomic mass of copper?
  • What is the structural formula (chemical bond structure) of Tritium?
  • What is the structural formula? (chemistry)?
  • What is the structure of (H2O)^2+ ion?
  • What is the structure of the compunds, hexane, benzamide, acetone, ethyl alcohol, benzl alcohol, aniline,?
  • What is the structure of..?
  • What is the suffix of aldehyde group of functional groups in organic compounds?
  • What is the suitable hardness of drinking water ?
  • What is the symbol for the element in this problem?
  • What is the synonym of effervescent granulated salt?
  • What is the synonym of eltroxin?
  • What is the systematic name [Co(NH3)4Cl2]+?
  • What is the taste of benzene?
  • What is the technique utilized in studying the chemistry of the celestial objects?
  • What is the temperature of the gas?
  • What is the tempurture of boiling water? What is the tempurture of the water when evaporation?
  • What is the type of gelatin in vitamin e?
  • What is the uncertainty principle and how is this a cause for non existence of electrons in the nucleus?
  • What is the uncommon ion effect/salt effect?
  • What is the unique characteristics of soium chloride?
  • What is the use of alcohol lamp in laboratory?
  • What is the use of ethanol?
  • What is the use of magnefying glass in laboratory?
  • What is the use of u-shape magnet in laboratory?
  • What is the valency of a Carbon atom?
  • What is the value of "c" in vacuum?
  • What is the value of -246.1 degree Celsius in Fahrenheit and kelvin? show the solution.?
  • What is the value of Kp for the following reactions at 1495 K? HBr =1/2 H2(g)+1/2 Br2?
  • What is the vapor pressure at 30 degrees celcuis of a solution of 9.26g of benzene(C6H6,pure liquid vapor...?
  • What is the vapor pressure at 30°C of a solution of 9.26 g of benzene (C6H6, pure liquid vapor pressure...?
  • What is the vapor pressure of 100 degrees Fahrenheit?
  • What is the volume of 45.0 grams of nitrogen monoxide, NO, at 20° C and a pressure of 740 mm Hg?
  • What is the volume of LP gas required to bring a litre of water from 20c to 100c in a kitchen kettle?
  • What is the volume of the gas in each of the following pressures if there is no change in temperature?
  • What is the weight of 2.50 moles of Al2O3?
  • What is the weight of the KCl residue when 3.00 grams of KClO3(s) is decomposed according to the reaction...?
  • What is thee melting point and boiling point of carbon and helium?
  • What is this about? quantitative interpretation of chemical reactions?
  • What is thr behavier of Aliphatic compounds?
  • What is titration method of Tetrabutyl urea please help me?
  • What is Total Organic Carbon in wastewater treatment ?
  • What is Total Organic Carbon in wastewater treatment ?
  • What is universal indicator?
  • What is used carbon black powder ?
  • What is valence?
  • What is viscosity?
  • What is vodkas boiling point?
  • What is voltammetry at interface between two immerscible electrolyte?
  • What is waters geometrical composition?
  • What is white rock opium?
  • What is yellow-phosphorus?
  • What is zink?
  • What is Zyklon-B?
  • What is(are) the product(s) of the complete combustion of any hydrocarbon?
  • What is...?
  • What is/are the emulsifier/s?
  • What isotopes are used in nuclear power plants?
  • What kind of bonding occure between these?
  • What kind of chemical reaction is this?
  • What kind of dirt never freezes nomater how much moisture it contains?
  • What kind of gloves are ink resistant?
  • What kind of metal retains heat the longest?
  • What kind of pills have the numbers 93 089?
  • What kind of soda will float or sink in both its diet and regular form?
  • What kind of solids would be expected to be soluble in liquid mercury?
  • What kind of urine test can detect alcohol for up to 3 days.?
  • What liquid can influence the raincoat?
  • What makes a person really want to be a Chemist someday? Why you?
  • What makes an alkaloid react as a base?
  • What makes ethanol flammable??
  • What makes gasoline so expensive?
  • What makes hydrofluoric acid from fluorite ?
  • What makes Instant cold packs freeze or get really cold?
  • What makes pepper hot,the chemical reaction with the toungue???
  • What makes snappers snap?
  • What makes the colors when you throw a copper pipe in the fire. Should you have any chemicals inside?
  • What mass of carbon dioxide will be produced?
  • What mass of KHP would be neutralized with 28.00 ml of 0.4824M NaOH?
  • What mass of magnesium chloride is needed to react with 145g of silver nitrate according to this reaction?
  • What mass of nickel acetate is needed to make 0.5L of 0.025M solution?
  • What mass of nitrogen gas must be released into an 18 L automobile air bag if the pressure in the bag is to be
  • What mass of sodium chloride remains when 250 mL of a 0.200 M solution of sodium chloride is carefully...?
  • What mass of sodium, Na, will react completely with1.00 L of chlorine gas, Cl2, at STP?
  • What material can come in the purest form?
  • What materials can I use for the practical analysis of processed waste water in a school laboratory?
  • What materials is suitable to make centrifuge tube that can store acetone for long term?
  • What mechanism does the substitution of 2-butanol follow?
  • What mechanism does the substitution of t-butanol follow?
  • What mechanism(s) does the substitution of 1-butanol follow?
  • What metals stick to magnets.?
  • What must the vapor pressure of Hg(g) be in order for this process to occur: Hg(l) <=> Hg(g)?
  • What noble gas has the same number of electrons as a sodium ion. How did you find the answer?
  • What number did the original 18th-centrury centigrade temperature scale use to indicate water’s freezing point
  • What number did the original 18th-centrury centigrade temperature scale use to indicate water’s freezing point
  • What number did the original 18th-centrury centigrade temperature scale use to indicate water’s freezing point
  • What pharmaceutical drug has a functional group of ketone?
  • What powder is the most explosive in a firework?
  • What precautions should be taken during the Vickers hardness test?
  • What pressures can be?
  • What principle involved in when pewrforming sublimation?
  • What procedures are use when slecting a sample?
  • What processes are involved in the production and disposal of nickel hydride batteries?
  • What properties does mercury have? What uses does it have?
  • What property of hydrogen prevents hydrogen gas from being used in balloons?
  • What proteolytic enzyme can jackfruit latex contain that can tenderize meat?
  • What r all the ways of nitrites industrial production ?
  • What r chemical equations involved in Lead nitrate nd potassium chromate, sodium carbonate nd hydrochlic acid?
  • What r dyes?
  • What should be the nomality of sodium hydroxide solution if exactly 25.00 mL are to be used to titrate?
  • What should be the perfect hypothesis?
  • What should be the positive result in polypeptide test? Pls help me..?
  • What should I do to dissolve hardened epoxy?
  • What should I do?
  • What solutions and precautions are in place to prevent environmental accidents in the cleaning industry?
  • What special names are given to the isotopes of hydrogen?
  • What special property must glassware have in order for it to be heated?
  • What specific solvent can dissolve keratin?
  • What specific solvent can dissolve keratin?
  • What steps could one take in order o be reasonably sure that all of the NH4Cl had been sublimed away when heat
  • What substance is formed in the ignition of magnesium? also, what is equation involved?
  • What substance was produced in reaction bet. Cl watr & KI w/c was confrmd by its reaction with starch?
  • What substances are found in the funnel when the mixture 0f naphthelene and silicon dioxide is heated?


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