how many grams of HNO3 are in 4.055 x10^22 molecules of HNO3? This is how they...
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...
Question 5 of 12 > How many grams of HNO, are in 2.405 x 1022.molecules of HNO? Show the conversions required to solve this problem and calculate the grams of HNO, 1 mol HNO, 63.018 g HNO, 2.405 x 10” molecules HNO, X X 78 HNO, 6,022 x 10 molecules HNO, 1 mol HNO Answer Bank mass HNO3 = 2.517 g HNO3
How many molecules of O2 are present in a 3.90L flask at a temperature of 273K and a pressure of 1.00atm? Use 6.022×10^23 mol^ −1 for Avogadro's number. Select the correct answer below: A) 1.05×10^23 molecules B) 1.74×10^23 molecules C) 3.74×10^24 molecules D) 9.60×10^22 molecules
How many molecules are in 6.40 g BR2? A. 1.28 x10^22 B. 2.41 x 10^22 C. 1.50 x 10^25 D. 2.83 x 10^25 E. None of above.
confused on how to convert from atoms(molecules) to grams Can you convert atoms (molecules) to grams? • How much do 2.33 X 1025 molecules of water weigh? • (2.33 X 1025 molecules) (1 mol / 6.022 X 1023 molecules) = • (38.69146463 mol)(18.0 g H,0 / 1 mol) = • 696 g H,0
Consider the following balanced reaction. How many grams of water are required to form 75.9g of HNO3?Assume that there is ecess NO2 present. The masses are as follows: 3 NO3 (g) + H2O yields 2HNO3 (aq) + NO (g)H2O= 18.02g/mol HNO3= 63.02g/molOk so i didnt understand how to solve this. i tried 75.9g HNO3 x (1mol/63.02HNO3)x(2mol/1mol H2O)x(1mol/18.02gH2O) and it was wrong and Im not sure why. Pleaseexplain and give me the answer.
Question 4 of 12 > How many molecules of Nacio, are in 4.361 g of NaCIO,? Show the conversions required to solve this problem and calculate the molecules of Nacio, i mol I mol NaCIO 6.022 x 10" molecules Nacio, 4.361 g NaCIO = ? molecules Nacio 122.44 g Nacio 1 mol Nacio Answer Bank amount of Nacio, = 2.144 x1022 molecules Nacio
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...
how many grams are in 5.32×10^22 molecules of co2
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....