Find the number of unpaired electrons on the central metal atom of following: MgSO4 NiSO4.6H2O CoCl2.6H2O KCr(SO4)2.12H2O CuSO4.5H2O (NH4)2Cr2O7 FeSO4.7H2O MnCl2.4H2O FeCl3.6H2O K3Mn(CN)6. calculate the number of gram of Al2S3 which can be prepared by the reaction of 20 gram of Al and 30 gram of sulpher . b. they involve an attraction between anions and cations. You can view more similar questions or ask a new question. 14-31-36/37/38 Alfa Aesar 12851: 8/26/1937 12:00:00 AM Alfa Aesar 12851: DANGER: FLAMMABLE, irritates skin, eyes, lungs Alfa Aesar 12851: DANGER: WATER REACTIVE, POISON, causes headache, nausea. please help!! Calculate the maximum yield of cobalt (II) choloride-6-water and show that cobalt (II) carbonate was in excess. First the number of moles of O2, molesO2=, 6.0g of cobolt (II) carbonate was added to 40cm3 of hydrochloric acid, concentration 2.0 mol/dm3. How many moles of Sr(OH)2 remain if 0.10 mol of H3PO4 react with 0.40 mol of Sr(OH)2? the data are represented in the following box plots: identify any va... An animal shelter has 45 cats, 10 dogs and 5 rabbits. H2S 34.082 Molar Mass (g/mol) the perimeter of the room is 14 yards. Hvap=40.7kJ/mol C liquid=4.18 C gas=2.01 C solid= 2.09 T melting=0 C T boiling=100 C The answers. What can be the use of smoke transformed into liquid? This is a limiting reagent problem. d. they can only form between atoms of the same element. Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes. Balance the equation for combustion of urea, and calculate the heat generated per mole of H2O formed. See the answer. Write the equation and balance it. Consider the following balanced equation: Question sent to expert. Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? Al2S3 + 6H2O → 2Al(OH)3 + 3H2S Carbon dioxide gas and liquid water form solid glucose (C6H12O6) and oxygen gas during photosynthesis. Every step must be based on a correct representation of the reaction equation. c. Unless the answer to a and b are the same, one of the reagents is in excess; the smaller number of moles Al(OH)3 is the correct one to use and the OTHER reagent is the one in excess. moles Al(OH)3 = (0.110 moles H2O)(2 mol.Al(OH)3 / 6 mol H2O) = ________? they always involvpoth a metal and a nonmetal. (0.110 mol H2O)(1 mol.Al2S3/6mol.H2O)=0.0183mol Al2S3 NEEDED. If a If 48.1 g of solid Al2S3 and 6.68 mL of liquid H2O are reacted stoichiometrically according to the balanced equation, how many grams of solid Al2S3 remain? b. th3 n4zc4 pl4t3 15 c0nv3rg1ng w1th the s0uth 4m3ric4n pl4t3. No, the problem says we have 4 so we know Al2S3 is the limiting reagent BUT let's do it the same way and check it. You can refuse to use cookies by setting the necessary parameters in your browser. In the reaction Al2S3(s) + 6HCl(aq) --> 2AlCl3(aq) + 3H2S(g), how many moles of HCl are used for each mole of AlCl3 formed? Based on the balanced equation 2Ba + O2 → 2BaO calculate the number of BaO formula units formed when 54 Ba atoms and 21 O2 molecules react? A possibly useful molar mass is Al2S3 = 150.17 g/mol. You will receive an answer to the email. 3S + 2A1 - Al2S3 Determine the percent yield of Al2S3. By using this site, you consent to the use of cookies. CoCO3 +2HCl = CoCl2, 3CuCl2 *2H2O + 2Al = 3Cu + 2AlCl3 + 6H2O Determine the number of grams that should have been produced when 1.25g of copper (2) chloride dehydrate reacts with excess aluminum so i'm not really sure how you're supposed to calculate, ia 3ag2S+2AL = 6 ag +al2s3 a double replacement or single replacement. Molar Mass (g/mol) Al2S3 150.16 H2O 18.015 Al(OH)3, A 0.879 g sample of a CaCl2 ∙ 2 H2O / K2C2O4 ∙ H2O solid salt mixture is dissolved in 150 mL of deionized water. asked by Judy on June 2, 2010; Chemistry. Determine the theoretical yield of H2S (in moles) if 4.0 mol Al2S3 and 4.0 mol H2O are reacted according to the following balanced reaction. Al2S3 (s) + 6 H2O(l) → 2 Al(OH)3 (s) + 3 H2S(g) So, We have 0.270 moles Al2S3 AVAILABLE. Note that I arranged the factor (1 unit Al2S3/4 units H2O) so that the factor converts units of H2O to units of Al2S3 by making the units H2O in the first term cancel with units H2O in the denominator of the factor). And millions of other answers 4U without ads. After thermal, Hydrazine is used as a rocket fuel because its reaction with oxygen is extremely exothermic: N2H4(liquid) + O2(g)  N2(g) + 2H2O(liquid) ΔH(reaction) = -615 kJ mol-1 What is the enthalpy of this reaction if water were produced, Arrange the following systems in order of increasing randomness or disorder(bring with the most ordered system) 1 mol liquid ammonia 1 mol gaseous ammonia 1 mol solid ammonia, from the balanced equation 4NH3 +7O2 - 4NO2 + 6H2O How many molecules of water are produced when 2.25 moles of ammonia are completely reacted? Identify... Nickel-63 has a half life of 92 hours. How many grams of oxygen are necessary to produce 4.50 moles of NO2?