Question 8 (1 point) How many grams are in 2.05 x 1023 molecules of dinitrogen pentoxide?...
Question 6 1 pts Dinitrogen pentoxide decomposes to nitrogen dioxide and oxygen, all species are gaseous. Given 19.19 g of dinitrogen pentoxide, how many grams of oxygen will be produced when the reaction goes to completion? No new data to save. Last checked at 9:15am Submit Quiz Question 6 1 pts Dinitrogen pentoxide decomposes to nitrogen dioxide and oxygen, all species are gaseous. Given 19.19 g of dinitrogen pentoxide, how many grams of oxygen will be produced when the reaction...
4. Find the mass, in grams, of 4.21 x 1023 molecules of N2 5. How many particles are there in 2.34 g of a molecular compound with a gram molecular mass of 233 g? T2 6. Aspartame is an artificial sweetener that is 160 times sweeter than sucrose (table sugar) when iissolved in water. It is marketed by G.D. Searle as Nutra Sweet. The molecular formula of aspartame is C14H18N205 a) Calculate the gram-formula-mass of aspartame. To ed b) How...
Question 19 (1 point) How many molecules of CH4 are in 48.2 g of this compound? OA) 2.00 x 1023 OB) 1.81 x 1024 C) 5.00 10-24 D) 4.00 E) 4.64 x 1026
How many grams of sodium iodide are required to react completely with 3.01 x 1023 molecules of chlorine? 2 NaI + Cl2 ------> I2 + 2 NaCl A. 1.50 g B. 37.5 g C. 150. g D. 74.9 g 1 points QUESTION 2 When 22.0 g of NaOH and 21.0 g of H2SO4 are mixed and react according to the reaction: 2 NaOH + H2SO4 ------> Na2SO4 + 2 H2O, which is the limiting reagent? A. NaOH B. H2SO4 C....
how many moles of dinitrogen pentoxide are produced from the complete reaction of 1 mole of oxygen?
no explanation needed just need answer for each box QUESTION 8 How many grams does 5.60 x 1022 molecules of SiO2 weigh? QUESTION 9 How many grams are in 8.13 x 1023 molecules of CH4? QUESTION 10 How many grams does 0.500 moles of copper (1) bromide weigh?
How many grams of Al are in 1.38 * 1023 molecules of Al2O3 if the atomic mass of Al is 27.0 g/mole, O is 16.0 g/mole, and Al2O3 is 102.0 g/mole (the final answer should have the correct number of significant figures)? Here is my work: (1.38*10^23 molecules) (1mol / 6.022*10^23 molecules) (27.0 gram/ mol)= 6.1873 I counted 3 Sig Fig so I rounded my answer to 6.19.... Another thought was (1.38*10^23 molecules) (54grams /1 mol) (1mol/6.022*10^23) but that answer...
tried it twice and theyre both wrong :/ Dinitrogen pentoxide (N2O5) decomposes as follows to nitrogen dioxide and nitrogen trioxide: N205(8) —— NO2(g) + NO3 (8) Calculate the average rate of the reaction between consecutive measurement times in the following table. Time (s) [N205] (molecules/cm²) 0.00 1.705x1012 1.95 1.625x1012 3.90 1.563x1012 5.85 1.513x1012 7.80 1.473x1012 Express every answer to two significant figures. Rate 1 = -1.7 x 1010 molecules/(cm3.s) Part 2 (1 point) & Feedback Rate 2 = -1.6 x...
A) 3.91 x 1023 molecules B) 1.09 x 1021 molecules C) 1.96 * 1023 molecules D) 58.57 molecules E) 1.80 x 10-3 molecules 38) Which of the choices is the correctly balanced form of the following equation? C6H14(%) + O2(g) + CO2(g) + H20(1) A) 2C6H14() + 1902(g) 12C02(g) + 14H20(1) B) C12H28() + 380(g) 12C02(g) + 14H20(1) C) C6H14(4) + 190(g) 6CO2(g) + 7H2007 D) C6H14) + 1302(g) → 6CO2(g) + 7H20(1) E) C6H14() + 1902(g) 6CO2(g) + 7H20(1)...
Phosphorus reacts with oxygen to form diphosphorus pentoxide, P,O. 4P(8) +502(8) 2P,0,() How many grams of P,0, are formed when 6.95g of phosphorus reacts with excess oxygen? Show the unit analysis used for the calculation by placing the correct components into the unit-factor slots. 696 5Px (+ 6.95 PX ) ( ) ( ) ( «P,0, Answer Bank 141.94 g P,0 30.97gP 1 mol P,0, 1 mol P 5 mol 0, 1 molo, 32.0050, 2 mol P,0, mol P How...