How many hydrogen atoms are in 35.0 grams of hydrogen gas?

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twineg4 · Accepted Answer

Step 1Molar Mass of Hydrogen (H) =1.00784g/molMolar Mass of Hydrogen gas (H2)=2×1.00784=2.01568g/molGiven mass of hydrogen gas (H2)=35.0gAs per the mole conceptmM=NNAm: given mass of H2 gas in grams. M: molar mass of H2 gas in gram/mole. N: number of particles or atoms present in H2 gas. NA: avogadro&#039;s number (6.022×1023)Step 2Substitute all the values in above relation to obtained the number of hydrogen atoms35.02.01568=N6.022×1023N=35.0×6.022×10232.01568N=1.045×1025 atomsAnswer: The number of hydrogen atoms in 35.0 g of hydrogen gas is 1.045×1025.

John Koga · Accepted Answer

Step 1 Given that 35.0 g of H2(g) mole of H2(g)=given massmolar mass =352=17.5mol ∴ No. of Molecules of H2(g)=mole×NA =17.5×6.022×1023 molecule Step 2 So, No. of atom=No. of molecule×atomicity =17.5×6.022×123×2 =210.77×1023 atom =2.11×1025 atom ≈2.11×1025 atom Answer: =2.11×1025 atom

alenahelenash · Accepted Answer

Step 1 General Formulas and Concepts: Atomic Structure a) Reading a Periodic Table b) Moles Stoichiometry a) Using Dimensional Analysis Explanation: Given: 35.0gH2 Solve atoms H2 Step 2 Avogadros

How many hydrogen atoms are in 35.0 grams of hydrogen

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