A sample of sulfur trioxide (SO3) weighs 5100g. How many molecules are contained in this sample? Use 80.063 the molar mass of SO3.
Use 6.022 x 1023 mol-1 for Avogadro's number.
Report your answer in scientific notation.
Your answer should have two significant figures.
A sample of sulfur trioxide (SO3) weighs 5100g. How many molecules are contained in this sample?
Calculate the number of molecules in (5.47x10^1) grams of sulfur trioxide, SO3. Provide your answer to the correct number of significant figures and without units.
a. How many moles of sulfur trioxide, SO3, are present in a sample that contains 2.49 moles of oxygen atoms? mol SO, b. How many moles of oxygen atoms are present in a sample that contains 4.39 moles of SO3? mol
how many molecules are contained in a 7.05 How many molecules are contained in a 7.05-g sample of dimethylmercury? Express your answer in molecules to three significant figures. What is the percentage of mercury (by mass) in the sample? Express your answer as a percent to four significant figures.
How many C atoms are present in the sample of C3H8 with mass 4.41 g? Avogadro’s number is 6.022 × 1023. Answer using scientific notation and to three significant digits.
1.) Acid rain forms in the upper atmosphere by the reaction of sulfur trioxide with water forming sulfuric acid. Calculate the mass in grams of 5.65 1021 molecules of SO3. 2.) If a tablet of acetaminophen, C8H9NO2, weighs 324 mg, how many moles are there in the tablet? 3.) A thimble of water contains 4.0 x 1021molecules. The number of moles of H20 i
How many molecules are contained in each of the following number of moles? Report your answer using two significant figures. a. 5.6 mol of penicillin molecules b. 0.84 mol of NH3 molecules a. × 10 molecules
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...
Part A How many sulfur molecules are there in 0.570 mol of octasulfur, Sg? Express your answer to three significant figures. IVO AEO ? molecules Submit Request Answer Part B How many sulfur atoms are there in 0.570 mol of octasulfur, S8? Express your answer to three significant figures. ΑΣφ ? atoms
If there are 0.20 moles in 8.9 grams of CO2, what is the number of CO2 molecules? Use this equation to find the answer: Moles in sample (mol) x Avogadro's number (6.022 x 1023) = Number of sample molecules 0.20 x 1023 1.2 x 1023 8.9 x 1023 20 x 1023
Be sure to answer all parts. How many moles are contained in each number of grams of table sugar (C12H2,011, molar mass 342.3 g/mol)? Enter your answer in scientific notation. a. 93.0 g b. 0.0690 g mol