WebAug 4, 2024 · So, to find the number of hydrogen atoms in a mole of water molecules, the problem can be solved using conversion factors: 1molH 2O × 6.02 × 1023moleculesH 2O 1molH 2O × 2atomsH 1moleculeH 2O = 1.20 × 1024atomsH. The first conversion factor converts from moles of particles to the number of particles. The second conversion factor … WebSep 7, 2014 · Step 1. Calculate the number of moles of the element. n = 4.95 × 1023 atoms × 1mol 6.022 × 1023atoms = 0.8220 mol. Step 2. Calculate its molar mass. Molar mass = 65.7g 0.8220mol = 79.9 g/mol. Step 3. Identify the element. Look in the Periodic Table for an element with atomic mass 79.9 u.
What is the mass, in grams, of 3.40*10^22 atoms He? Socratic
Web1 molecule of CO2 has 2 atoms of O So, atoms of O = 2*number of molecules of CO2 = 2*6.007*10^22 molecules = 1.20*10^23 atoms Answer: 1.20*10^23 atoms 4 1 Add a comment Know the answer? How many O atoms are in 4.39 g of CO2? Your Answer: Your Name: Earn Coins Post as anonymous Post Your Answer Similar Homework Help Questions WebJun 23, 2016 · Avogadro's constant says that 1 mole of any atom contains 6.022 ⋅ 1023 atoms. In this case you have 3.40 ⋅ 1022 atoms: 3.40⋅ 1022 atoms 6.022 ⋅ 1023 atoms mol = 5.65 ⋅ 10−2mol. Step 2. The atomic mass of helium (He) will give you the weight of one mole of this molecule: 1 mol = 4.00 gram: 4.00 g mol ⋅ 5.65 ⋅ 10−2mol = 0.226g. how to say it\u0027s fine in japanese
A 65.7 g sample of an element contains 4.95×10²³ atoms
WebIn: Chemistry. -How many atoms are in 4.39 g of CO2? -How many molecules are there in 8.0... -How many atoms are in 4.39 g of CO 2? -How many molecules are there in 8.0 g of ozone, O 3? -How many sulfur atoms are there in 21.0 g of Al 2 S 3? -How many sulfur atoms are present in 25.6 g of Al 2 (S 2 O 3) 3? WebA:4.39 g CO2 has 1.65 x 1023 O atoms, since the molar mass of CO2 is 44 g/mol and each molecule has 2 O atoms. What is Atoms? Atoms are the basic building blocks of matter. They are composed of three types of particles: protons, neutrons, and electrons. Protons and neutrons are located in the nucleus of the atom, while electrons orbit the nucleus. WebOct 10, 2024 · Each molecule of carbon dioxide (CO2) has one atom of carbon (C) and two atoms of oxygen (O). How many atoms are in one molecule of CO2? 1 molecule of CO2 is made of: C - 1 atom of C... how to say it\u0027s cool in spanish