WebNov 26, 2024 · Atomic mass of Scandium is 44.9559 u. Note that each element may contain more isotopes. Therefore this resulting atomic mass is calculated from naturally … WebHow many atoms are present in 44.96 g of scandium? ____________________________ atoms scandium b. Calculate the number of molecules present in 4.38 g of phosphine, PH 3 …

3.3: Quantity in Chemistry: The Mole - Chemistry LibreTexts

WebA) 75.0 atoms B) 4.17 atoms C) 7.53 times 10^24 atoms D) 2.51 times 10^24 atoms E) 5.02 times 10^24 atoms The molar mass of calcium hydroxide, Ca (OH)_2, is A) 58.1 g B) 57.1 g C) 74.1 g D) 114.2 g E) 38.0 g Question: How many hydrogen atoms are … WebMar 1, 2024 · So we get this value 6.034 into candles for 24 oxygen atoms. So basically this is our correct answer. We can also solve uh in another way, uh the number of oxygen atom. So here in this approach. The calculations start with the volume of sulfur trioxide. Mhm molecules. Can words to mall of sulfur dioxide molecules than to the number of molecules. china olympic swimming facilities

Please explain about the way to calculate the number of atoms of …

Webaverage atomic mass of an unknown monatomic gas is 0.045 g/mol. Every H atom weighs 1.008 amu. A certain mass of solid Na contains fewer atoms than the same mass of gaseous Ne. true A certain mass of solid Na contains fewer atoms than the same mass of gaseous Ar. On average, one Li atom weighs 6.941 grams. The atomic mass of rhenium is … WebNov 9, 2024 · A) 75.0 atoms B) 4.17 atoms C) 7.53 × 1024 atoms D) 2.51 × 1024 atoms E) 5.02 × 1024 atoms 2 Answers no. of moles of H2O = mass / relative molecular mass = 75/18 no. of H2O molecules = moles x Avagadro's constant = … graiseley hub