Web27 mrt. 2024 · According to manual the formula is. ng = ( x fmol ) ( N ) (660 fg/fmol) (1 ng/10 6fg) where N is the size of the DNA in base. pairs, and x is the number of fmoles. so , if my entry clone is 2817bp ... Web4 aug. 2024 · 1 mole = 6.02 × 1023 molecules H 2SO 4 Unknown mol of H 2 SO 4 molecules Two conversion factors will be used. First, convert atoms of oxygen to molecules of sulfuric acid. Then, convert molecules of sulfuric acid to moles of sulfuric acid. Step 2: Calculate.
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Web25 dec. 2024 · For example, 3.01 × 10 23 water molecules contain 9.03 × 10 23 atoms. This is because one water molecule, H 2 O, is made up of three atoms. Question. Calculate the number of oxygen atoms in 0.5 ... Web31 okt. 2024 · Note that 1 mole of a substance contains 6.022 × 10 23 atoms or molecules. 6.022 × 10 23 is a constant number, known as Avogadro’s constant. The equation can be rearranged to find the mass if ... how to try chatgpt
Higher - Calculations in chemistry (Higher) - BBC Bitesize
Web19 dec. 2024 · number of atoms = Avogadro's number × moles. Now, by knowing the units of the other two variables, we can work out the units for Avogadro's number: For moles, the unit is simply moles. The number of … WebTo determine the required number of molecules, first determine the molecular weight of the substance for one mole, then divide the molar mass value by the molecular … Web3 jul. 2024 · Avogadro's Number Problem Key Takeaways. Avogadro's number is 6.02 x 10 23. It is the number of particles in a mole. You can use Avogadro's number to convert between mass and the number of molecules of any pure substance. If you are given the mass of a sample (such as a snowflake), convert the mass to moles, and then use … how to try chatgpt-4