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The formula unit of potassium chloride (KCl) has two atoms.
The answer is of course 0,9 M.
moles KCL = ( M solution ) ( L of solution )moles KCl = ( 0.83 mol KCl / L ) ( 1.7 L ) = 1.41 moles KCl
moles KCl = ( M solution ) ( V solution in L )moles KCl = ( 2.2 mol KCl / L solution ) ( 0.635 L of solution )moles KCl = 1.397 moles KCl
The empirical formula of the compound with 52.7% K and 47.3% Cl is KCl (potassium chloride). This is because the ratio of potassium to chlorine atoms in the compound is 1:1, leading to the simple formula KCl.
There are two types of atoms in KCl, potassium (K) and chlorine (Cl). The chemical formula KCl indicates that there is one atom of potassium and one atom of chlorine in each molecule of KCl.
The potassium chloride formula unit (KCl) contain two atoms (K and Cl). Potassium chloride is an ionic compound and therefore does not have true molecules at all.
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two elements and two atoms (potassium and chlorine)In one molecule of KCl, there are two elements (potassium and chlorine).The molecular weight of KCl is 74.55 g / mol.So, 74.55 g of KCl will contain 6.023 x 1023 molecules or 12.046 x 1023 atoms.
To find the number of K atoms in KCl, we first calculate the molar mass of KCl: 39.10 (K) + 35.45 (Cl) = 74.55 g/mol. Next, we determine the number of moles of KCl in 2.77g: 2.77g / 74.55 g/mol = 0.0371 mol. Since there is 1 K atom in 1 KCl molecule, the number of K atoms in 2.77g of KCl is the same as the number of moles of KCl, which is 0.0371 mol.
There are 2 moles of KCl in the sample, so there are 2 moles of chloride ions as well. Since each molecule of KCl contains 1 chloride ion, there are 2 moles of chloride ions in total.
The formula unit of potassium chloride (KCl) has two atoms.
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K+ And CL- or Potassium and chlorine.
The oxidation numbers for the atoms in the ionic compound KCl are K+1 and Cl-1.
KCl is a molecule composed of one atom of the element potassium and one atom of the element chlorine. It's called Potassium chloride. It's the component of the solution used to in lethal injections that is directly responsible for death.
The answer is of course 0,9 M.