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What is the the mass number for bromine?
Bromine is a non metal element. Mass number of it is 80.
Aluminum will react with bromine to form aluminum bromide Al2Br6 What mass of bromine g is needed to form 1.42 mol of Al2Br6?
The gram formula unit or molar mass for aluminum bromide is 533.38.* Therefore, 1.42 moles has a mass of 757.4 grams. The mass of 6 moles of bromine atoms is 479.42. Therefore, the mass fraction of bromine in aluminum bromide is 479.42/757.4 or 0.633, and the mass in grams of bromine required to form 1.42 moles of aluminum bromide is 0.633 X 757.4 or 479 grams, to the justified number of significant digits (limited by the precision given for the number of moles.) ___________________ *This is equal to the sum of (2 times the gram atomic mass of aluminum) and (6 times the gram atomic mass of bromine).
Why does bromine have different mass numbers?
Bromine isotopes have different mass numbers because their atoms have different numbers of neutrons.
What are the masses of the four different BrCl molecules?
81Br37Cl=117.882 81Br35Cl= 115.885 79Br37Cl=115.884 79Br35Cl =113.887
How many grams of boron tribromide must be weighed out to get a sample of boron tribromide that contains 11.8 g of bromine?
The atomic mass of boron is 10.811 while that of bromine is 79.904. Thus the ratio of the mass of bromine to the total mass of boron tribromide must be: 3(79.904)/[3(79.904) + 10.811] = 0.9568. The required mass of BBr3 thus is 11.8/0.9568 = 12.3 g, to the justified number of significant digits.
How many moles are there in 160g of bromine molecules?
Amount of Br2 = mass of sample / molar mass = 160 / 2(79.9) = 1.00mol
What element forms a diatomic gas with a mass of 160 amu?
Bromine (Br) has a molar mass of 79.904 amu (atomic mass units), which is extremely close to 80. Bromine is diatomic so when two bromine molecules are put together to create a diatomic gas, the molar masses of each bromine add to get a combined molar mass of 160 amu.
What is the the mass number for bromine?
Bromine is a non metal element. Mass number of it is 80.
What is the Mass number of a bromine atom?
Bromine has an approximate atomic mass of 79.904.
What is Bromine atomic mass?
Bromine is a metal element. Atomic mass of it is 79.90.
If there are 6.022 x 10e23 molecules of platinum in every 195.08 grams of platinum how many molecules of platinum are there in a ring that's mass is 6.31 grams?
567.1 mass is the equal to 56789.0 intergram. XD
What is the relative atomic mass of bromine?
Bromine is a non meta element. Atomic mass of it is 80.
What is the atomic mass of bromine-97?
Bromine is a non metal element. Atomic mass of it is 80.
How many moles are in 0.476 grams of bromine?
Mol = mass/Ar (relative atomic mass)For Bromine Ar is 79.9 g/mol.Mol= 0.476/79.9 = 5.96x10-3
Aluminum will react with bromine to form aluminum bromide Al2Br6 What mass of bromine g is needed to form 1.42 mol of Al2Br6?
The gram formula unit or molar mass for aluminum bromide is 533.38.* Therefore, 1.42 moles has a mass of 757.4 grams. The mass of 6 moles of bromine atoms is 479.42. Therefore, the mass fraction of bromine in aluminum bromide is 479.42/757.4 or 0.633, and the mass in grams of bromine required to form 1.42 moles of aluminum bromide is 0.633 X 757.4 or 479 grams, to the justified number of significant digits (limited by the precision given for the number of moles.) ___________________ *This is equal to the sum of (2 times the gram atomic mass of aluminum) and (6 times the gram atomic mass of bromine).
25.0 mL of bromine weighs 77.58 g What is the density of bromine?
Density is equal to the mass (in g) divided by the volume (in mL). So 25.0 m/L divided by 77.58 g is your answer.
How many electrons are present in a bromine atom with a mass number of 87?
52
