The mass of 0.030 moles of Br2 is 4.79424 grams, properly rounded to 4.8 grams.
44.0 grams Br2 ? 44.0 grams Br2 (1 mole Br2/159.8 grams)(6.022 X 10^23/1 mole Br2)(1 mole Br2 atoms/6.022 X 10^23) = 0.275 moles of Br2 atoms
The mole ratio of Cl2 to Br2 in the given reaction is 1:1. This means that for every 1 mole of Cl2 that reacts, 1 mole of Br2 is also involved in the reaction.
To calculate the mass of 4.89 x 10^20 molecules of Br2, you need to use the molar mass of Br2, which is 159.808 g/mol. Calculate the number of moles of Br2: 4.89 x 10^20 molecules / 6.022 x 10^23 molecules/mol = 8.13 x 10^-4 moles Use the formula mass = moles x molar mass to find the mass: mass = 8.13 x 10^-4 moles x 159.808 g/mol ≈ 0.130 g
Br2 would discolour more when reacting with 1 mole of ethene compared to 1 mole of ethylbenzene. Ethene, being an alkene, undergoes electrophilic addition with bromine, resulting in the consumption of Br2 and a noticeable colour change. In contrast, ethylbenzene, which is an aromatic compound, does not readily react with Br2 under normal conditions, leading to less or no discolouration. Thus, ethene reacts more readily and causes a greater discolouration of Br2.
To find the number of moles in 44.0 g of Br2, you need to divide the given mass by the molar mass of Br2. The molar mass of Br2 is approximately 159.808 g/mol. Therefore, 44.0 g Br2 is equal to 0.275 moles.
One mole of bromine (Br2) weighs approximately 159.808 grams.
1,012 mole of bromine for the diatomic molecule.
The molecular weight of a compound is the sum of the atomic weights of all the atoms in a molecule. For bromine (Br2), the density doesn't directly provide information about the molecular weight. The molecular weight of bromine (Br2) is approximately 159.808 g/mol.
First convert the volume of the Br2 into grams by using:D=M/VSo we are given that volume=16.0 ml and density=3.12g/ml.M=D*VM=(3.12g/ml)*(16.0ml)=49.92 gThen we use #moles of a substance=#grams present/Formula weight(# of grams of Br2 in 1 mol of Br2)The Formula weight(molar mass) of Br2=2*(79.9 g/mol)=159.80 g/mol Br2#moles of Br2=49.92g/159.80g/mol Br2=.312 moles of Br2 present.
9.92kg
The molar mass of Br2 is 159.808 g/mol. To convert 3.2 L to grams, you need to use the density of Br2, which is approximately 3.12 g/mL. Then convert grams to kilograms to get the mass in kg, which would be around 10 kg.
The complete decomposition reaction is as follows:2 BrF3 → Br2 + 3 F2 , so 2 moles BrF3 will give 1 mole Br2 , hence 0.248 mole gives 0.124 mole Br2