Mole ratio, molarity, concentration, volume 11.84 How many milliliters of 0.120 M Al2(SO4)3 would react completely with 48.0 ml of 0.150 M BaCl2? Al2(SO4)3 (aq) + BaCl2 (aq) AlCl3 (aq) + BaSO4 (s) Unbalanced
Mass calculation using the stoichiometric equation.
Propane, C3H8, in a tank that is usually the size of a basketball is often used for grills. a) Write a balanced equation for the combustion of propane. b) Calculate the number of moles of oxygen required to burn 5000.0 g (11.0 lbs) of propane. c) Calculate the number of kilograms of O2 required to burn propane.
Volumetric analysis. definition of mole and calculaton of Volume. Relationship between mole, molarity and volume. Use of appropriate unit in calculation.
What volume of physiological saline (0.900% w/v NaCl) can be prepared from 90.00 ml of 2.75% w/v NaCl solution?
I'm not getting the right answer, can someone give a step by step EXPLANATION on the solution: CHF3O3S has 4.62 x 10 to the23rd O atoms, what is the amount of moles in CHF3O3S?
Q. In 154 grams CO2, how many molecules
I'm thoroughly confusing myself, I know how to calc a formula mass and to determine from moles how to get the mass. But I'm not making the connection to count #atoms/molecule. ex) What are the number of atoms of C-12 are there in 3.5 gram sample
A 12.0% sucrose solution has a density of 1.05g/cm^3. The number that gives the best value for the mass of sugar in 55mL of this solution is? I need step by step answer for this question please. What is the Molarity(m) of a solution that contains 73.5g of 1,4-dichlorobenzene,C6H4Cl2, in 500mL of carbon tetrachloride? (The
How much 0.54M NaCl, "physiologic saline" can be prepared via the dilution of 100mL of 6.0 M NaCl solution?
What is the molecular formula of a compound that contains 42.87% carbon, 3,598% hydrogen, 25.00% nitrogen and 28.55 oxygen and has a molar mass between 165 and 170? How many grams of lithium contain the same number of atoms as 2.50 Kg of zirconium? If the molar mass of a binary compound has a molar mass between 27 and 28 a
1. One process for the commercial production of baking soda, sodium hydrogen carbonate, involves the following reaction: aqueous sodium chloride + gaseous ammonia + solid carbon dioxide + liquid water yields aqueous ammonium chloride + solid sodium hydrogen carbonate. Because they are relatively cheap, sodium chloride and water
A hypothetical compound has a formula of X2YZ3. If the atomic masses of X, Y, and Z are 41.2, 57.7 and 63.9 respectively, calculate the % by mass of the compound. If the molecular formula is actually X6Y3Z9, what is the percentage of each element present?
In the following reaction, first find how many grams of oxygen would be used to completely react with 1.30 moles of ethyl alcohol (C2H5OH)? Then calculate the number of carbon dioxide molecules and finally, the grams of water formed during reaction. C2H5OH + O2 -> C02 + H20
Hydrogen bromide can be produced by a reaction among bromine, sulfur dioxide, and water as follows... S02 + Br2 +H2O (arrow) 2HBr + H2SO4 If 250 grams of SO2 and 650 grams of Br2 react in the presence of excess water, what mass of HBr will be formed?
Heating zinc sulfide in the presence of oxygen yields the following: ZnS + O2 (arrow) ZnO + SO2 If 1.72 mol of ZnS is heated in the presence of 3.04 mol of O2, which reactant will be used up? Balance the equation first.
Please explain how I would figure out this problem: From 0.80 L of a glucose stock solution, 4.0L of a 1.8% w/v solution of glucose was prepared. What was the concentration of the stock solution?
How many grams of KNO3 can be made from 591.9 g KCl and 830.0 ml of 12.0 M HNO3 by the reaction: KCl (s) + HNO3 (aq) ----> KNO3 (s) + Cl2 (g) + NOCl (g) +H2O (I) Also, how much of the excess reactant (grams if KCl or ml if HNO3) will be unused?
Calculate the molarity of Br- ions in 250.0 ml of a solution containing 25.9 g NaBr and 0.155 moles of HBr.
What volume, in ml, of 0.750 M HCl would be required to neutralize a 1.50 sample of Ca(OH)2?
Calculate the solubility of copper (II) carbonate CuCO3, in 0.500 M NH3. Ksp for CuCO3 = 3.00 x 10-12 and Kf for [Cu(NH3)4]2+ = 5.60 x 10 to the 11 power.
The fluoride ion is very toxic. Not only does it interfere with glycolysis, but if forms an insoluble precipitate with calcium ions (Ksp = 4.13 x 10-11). Give an explanation as to why CaF2 is insoluble; whereas, other calcium halides are soluble in the order CaI2>CaBr2>CaCl2. How much fluoride (as sodium fluoride) would you h
If 150.0 ml of HCl solution are required to react completely with 35.0ml of 0.010 M NaOH solution, what is the molarity of the HCl solution?
If 4.0 moles of hydrogen gas and 1.1 moles of nitrogen gas are brought together to react according to the following equation: 3H2 + N2 ----> 2NH3 What is the limiting reactant, how many moles of NH3 will be produced?
When 19.8g butane, C4H10 is burned with excess oxygen: 2C4H10g + 13O2g -----> 8CO2g +10H2Og How many grams of oxyen are consumed, how many grams of CO2 & H2O are produced?
A 0.250g sample of a compound containing only carbon and hydrogen whose molecular weight is 16g/mol is burned in oxygen to yield 0.784g CO2 and 0,642g H2O. What is the molecular formula of the compound?
How Many Cl- ions are present in 50.0 g FeCl3?
Calculate the molar mass of Manganese IV oxide?
Consider the following reaction: C4H10O + 6O2-> 4CO2+5H2O deltaH=-2713kj How many grams of water will be produced if the reaction is conducted with 75.6g of C4H10O and 95.5 g of oxygen?
1. A sample of unknown Y is subjected to elemental analysis. The follwoing precentages by weight are found to be: C 40.0% H 6.7% O remainder of % by weight The molar mass is found to be 60.0 g A. Calculate the empirical formula (show work) B. What is the molecular formula of unknown Y. (Inclu