Chemistry Questions and Answers

  • how many moles are present in 34 grams of Cu(0H)2?
  • How many moles are there in 8 grams CH3OH?
  • How many moles of aluminum are needed to react complety with 1.2 mol of FeO?
  • How many moles of aluminum hydroxide are in one antacid tablet...?
  • How many moles of aluminum ions are in 45.0 g of aluminum oxide?
  • How many moles of atoms are in 1.00 lb. (454g) of lead?
  • How many moles of boron are required to completely react with 0.400 mol of nitrogen gas?
  • How many moles of CaF2 will dissolve in 3.0 liters of 0.050 M NaF solution? (Ksp for CaF2 = 4.0 x 10-11)?
  • how many moles of cesium are in 66.45g of cesium?
  • How many moles of FeCl3 will be produced from 6 moles of Cl2?
  • How many moles of H2 are needed to inflate a (spherical) balloon to 5.20 m radius at a pressure of 1.00 atm an
  • How many moles of H2SO4 are present per milliliter of solution? What is the mass % of H2SO4 in the solution?
  • how many moles of helium atoms are there in 221,000 helium atoms?
  • How many moles of HNO3 are present in 34.4 mL of a 2.20 M solution of nitric acid?
  • How many moles of ions are contained in 1.2 L of a 1.8 M solution of Mg(NO3)2?
  • how many moles of ions are contained in 1.2 L of a 1.8M solution of Mg(NO3)2?
  • How many moles of ions are contained in 1.7 L of a 1.1 M solution of KCl?
  • How many moles of LiCl are contained in a LiCl pellet with a mass of 5.035 grams?
  • How many moles of N2O in 12.6 grams of N2O?
  • How many moles of NaOH are required to neutralize 0.616g of KHP?
  • How many moles of Oxygen gas are there in 135L of Oxygen at STP?
  • How many moles of Pb Metal would form when the PbCO3 is heated?
  • How many moles of water can be made from 4 moles of oxygen gas and 16 moles of hydrogen gas?
  • how many moles of water must decompose to produce 3.8 grams of oxygen?
  • how many moles?
  • how many moles?
  • How many monoclorinations products will form from 2,2,3,3- tetramethyl pentane?
  • How many neutrons can be found in the nucleus of an atom of chlorine-37?
  • How many orbitals are there in the fifth principal energy level?
  • How many orbitals are there in the third shell?
  • How many ounces of 2 cycle oil do i mix with 1 gallon of gas to make a 50:1 ratio.?
  • How many ounces of pure water must be added to 80 oz. of a 9% salt solution to make a 6% salt solution?
  • How many out there actually have retained the info.to manufacture an H- bomb ?
  • How many outer-ring electrons does a calcium atom?
  • how many oxygen atoms are in Al2(CO3)3?
  • how many oxygen atoms are there in one meter cube air?
  • how many people belive in spontaneous combustion?
  • how many positional isomers of ethanol are possible?
  • How many possible isomers?
  • how many pounds is 460 grams?
  • how many protons and neutrons does a silicon atom have and where a re these subatomic particles located?
  • How Many protons has 59CO?
  • how many ribose molecules are found in atp and adp?
  • How many significant digits should I use when.?
  • How many significant figures in 500?
  • How many soluble and insoluble ionic compounds can you name?
  • How many state of matter are there??
  • how many structural isomers are there for C3H7Cl???
  • How many substances exist that expand as they freeze?
  • How many types of titrations&explained them?
  • How many units are in a cc?
  • How many unpaired electrons are present in the ground state of an atom from each group-5A-2A-6A-8A?
  • How many unshared pairs of electrons does the nitrogen atom in ammonia possess?
  • how many valence electrons are in an atom of radium? of lead? of Neon? of resium?
  • how many valence electrons are involved in one bond?
  • how many valence electrons does hydrogen have?
  • How Many Valence Electrons Does O2 Gas Have? How Can You Tell?
  • how many water molecules are associated with one formula unit of sodium thiosulfate in Na2S2O3 x 5 H20?
  • how many zones are there in candle flame; 23 or 4?
  • How many...?
  • How may moles of sodium carbonate are in 625mL of a 0.150 mol/L solution?
  • How microbiology useful to chemistry (a chemist)?
  • how might a base such as NaOH make phenols more soluble?
  • How might I use a precipitation reaction to prepare a sample of CuCO3? What would the Net Ionic Equtn be?
  • how might poly(alkene) such as poly(propene) be disposed off by chemical process?
  • How might Viscosity be measured?
  • how might you seperate a mixture of water and salt?
  • how milk coagulate is happened?
  • How much 12 M HCl is needed to neutralize 75 mL of 5% NaOH?
  • how much coal has to be burnt?
  • how much concentrated antibody do you need?
  • How much cyclohexanone can be reduced by 10 mL of 1.0 M NaBH4 solution?
  • how much dissolve oxygen will be left in a soft drink bottle when salt is added?
  • How much do you know about Polymers?
  • how much does 4.2 moles of Ca(NO3)2 weigh?
  • How much does a dried piece of filter paper weigh?
  • How much does a gram of Iodine cost?
  • how much does a gram weigh?
  • how much does a pound of sulfur cost?
  • How much does a water molecule weigh?
  • How much does buckyball cost and how can I buy some?
  • How much does food irradiation cost?
  • How much does Krypton cost?
  • How much does Malachite cost?
  • how much does the element mercury coast per gram or pound!?
  • How much dos carbon dioxide emissions in the atmosphere influence our physical performance?
  • How much energy is in a single grape?
  • How much energy is needed to move an electron in a hydrogen atom from the ground state (n = 1) to n = 3?
  • How much faster does hydrogen gas effuse than methane??
  • How much HCl would you need to dissolve in 1.0L of water so that.?
  • how much heat does i take to melt ice?
  • how much heat does i take to melt ice?
  • How much heat energy, in kilojoules, is required to convert 50 g of ice at -18 C to water at 25 C?
  • How much heat is required to bring 500g of ice from -20 C to completely boiled away at 100 C?
  • How much heat required to vaporize?
  • How much iron (%) is in a #8 hardened steel nut?
  • How much is 227 pmol/L of Estrogen in pg/mL?
  • How much lemon juice should I add to water to achieve ph 8?
  • how much liquid can an average petri dish contain?
  • How much lye to disintegrate a human body?
  • How much methyl alcohol to water should I use?
  • How much more powerful is blackpowder than match powder?
  • How much of each starting material would you use to prepare 2.00 L of each of the following solutions?
  • How much power from a burning candle?
  • how much pressure (N/m2) must the table be able to withstand?
  • How much pressure a PET bottle (Cola or Fanta pet bottle) can take?
  • How much pure alcohol is in a 355mL bottle of a "wine cooler" that is 5.0% alcohol by volume?
  • How much salt is required to kill someone?
  • How much silver in photographic paper?
  • How much silver nitrate must be measured to yeild 1.00 grams silver?
  • How Much Space Does 2 Tons Of Gold Occupy?
  • How much sumagic do you mix in 100 L. of water in order to obtain 1 ppm. uniconazole?
  • how much time will elapse between seeing and hearing an event that happens 400.0 meters from you?
  • how much viniger to launch a rocket?
  • How much volume change in a gallon of water per 1 degree F?
  • How much volume of sulfur dioxide is produced when 224 grams of sulfur are burned?
  • How much weight in lbs. is 1,020 cc's?
  • How much weight of sulfuric acid must react with copper in order to produce 112 liters of sulfur dioxide?
  • how n where can i find better explained chemical reaction mechanisms any1 like 2 help me out.?
  • How or where can I get red acetate paper?
  • how oxygen is liquified?
  • How pennies change though the years?
  • How RARE IS SODIUM?
  • how remove dioxin powder on the money?
  • how select lubrication viscosity?
  • How should I label my sodium hydroxide?
  • How should i set up my science fair project about how what detergent is best to get rid of oil stains?
  • How should i set up my science fair project about how what detergent is best to get rid of oil stains?
  • How should I write an acid-base reaction?
  • How strong is Aerogel? Could it be used instead of carbon fiber, or metal?
  • How the atomic fountain works?
  • How the density of the ethyl alcohol would change if it were warmed to 50 degrees of Celsius?
  • How the different factors affects the rate of chemical reaction?
  • how the emusion spectrum of element provide the existence of energy level?
  • How the photons are created during the fusion of Hydrogen into Helio inside the sun?
  • How the term octet relates to both ionic and covalent bonding?
  • How to agglutinate china?
  • how to analyse the dead fish in river?
  • how to anodize aluminum?
  • how to avoid turnish (coper rusting)?
  • how to balance a chemical reaction?
  • How to balance equations?
  • How to balance Redox reactions?
  • how to balance the equation of C4H9OH + O2 >CO2 + H2O ?
  • How to balance this equation? NH3 + O2 ---> NO + H2O?
  • How to break the cross links formed by formalin?
  • How to calc pH from a pKb value ?
  • how to calculate % gel content of a sample?
  • how to calculate air pressure?
  • how to calculate average time?
  • how to calculate concentration knowing the initial volume of limiting reagent?
  • how to calculate mass ?
  • how to calculate Mass involving density and volume?
  • how to calculate specific heat?
  • how to calculate the density of NaCl if the dimension of its unit cell is given?
  • How to calculate the energy levels of the pi-network in molecules.?
  • how to calculate the energy of the ultraviolet ray if the wavelenght is 150mm?
  • How to calculate the equilibrium pressure of CO2 due to the decomposition of barium carbonate (BaCO3) at 25°C
  • How to calculate the hardness of waste water?? Please!?
  • How to calculate the speed of catalysis knowing the absorbances?
  • How to calculate the theoretical pH of the resulting solutiong?
  • how to compair the volume oflaquid butane with its volume ehen change to a gas?
  • how to convert atmosoheric air in to oxygen?
  • how to convert organic structures?
  • How to convert pg/mL to pmol/L?
  • how to cook the Ketamine from liquid into white powder?
  • how to create a hole in a very hard hill stone without any sounds useing chemicals?
  • how to decrease toughned of material?
  • How to deduce molecular formula from empirical formula?
  • How to determin cholesterol level in food HPLC method?
  • How to determine if an element or a compound is polar or nonpolar?
  • How to determine if reactants/ products are (aq), (s), (l), or (g)?
  • how to determine oil extraction percent using hexane?
  • How to determine solubility? Also, how to determine which intermolecular force is occuring?
  • How to determine the geometry of a compound?
  • how to determine the number of atoms in chemical formulas?
  • how to determine velocity of electron?
  • how to determine what cause fish killed in river.?
  • How to dilute 2.00mol of hydrochloric acid to 0.02mol?
  • how to disolve riged foam?
  • how to do build three-dimensional models of covalent molecules. an example is hydrogen and ethyne?
  • how to do polish (acid or alkal etch) on aluminium base matel and what kind.chemicals i shut use?pls help me..
  • How to do supercooling?
  • how to do synthesis of allethrin from acetoaceticester & glycerol?
  • How to draw a bent structure of SO2?
  • how to draw a structure with 8 carbons with an alkene, carboxylic acid and alcohol functional group?
  • How to extract glycerine from mustard oil?
  • how to extract low density lipids from mustard oil?
  • How to extract the eye-burning substance from onions?
  • How to figure out charge on D block elements?
  • How to find enthalpy of decomposition of Sodium hydrogen carbonate?
  • How to find feasibilty with standard reduction potentials?
  • How to find the concentration of acid in vinegar.?
  • how to find the mass of magnesium oxide produced, the amount of oxygen that reacted with the mg in moles & g?
  • How to get a homogenous n heterogenous solution??
  • How to get battery acid off of toys?
  • how to get percentage of oil in peanut?
  • how to i convert 1.00g/cm3 to gram per liter?
  • How to identify unknown chemical?
  • How to isolate KNO3?


  • Page [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] [80] [81] [82] [83] [84] [85] [86] [87] [88] [89] [90] [91] [92] [93] [94] [95] [96] [97] [98] [99] [100] [101] [102] [103] [104] [105] [106] [107] [108] [109] [110] [111] [112] [113] [114] [115] [116] [117] [118] [119] [120] [121] [122] [123] [124] [125] [126] [127] [128] [129] [130] [131] [132] [133] [134] [135] [136] [137] [138] [139] [140] [141] [142] [143] [144] [145] [146] [147] [148] [149] [150] [151] [152] [153] [154] [155] [156] [157] [158] [159] [160] [161] [162] [163] [164] [165] [166] [167] [168] [169]