0
What else can I help you with?
What is molarity of a solutionn that contains 20 g CaBr2 in 0.50 L of solution?
Use the equations moles = mass/Mr and moles = conc x vol / 1000 Algebraically substituting mass/Mr = conc x vol / 1000 Hence concentration = mass X 1000 / (Mr x vol) Mass = 20g Mr ( Relative molecular mass of CaBr2) = 40 + ( 79.9 x 2)= 199.8 vol = 500 mL ( 0.5 L) Substitute in Conc (mol L(-1)) = 20g x 1000 / (199.8 x 500) conc 20000 / 99900 conc = 200/999 mol L^(-1) conc = 0.200200... molL^(-1) = conc = 0.20 mol L^(-1)
Is an oxygen atom have twice the mass of a sulphur atom?
No, an oxygen atom does not have twice the mass of a sulfur atom. An oxygen atom has a mass of approximately 16 atomic mass units (amu), while a sulfur atom has a mass of approximately 32 amu. Therefore, a sulfur atom has twice the mass of an oxygen atom.
The relative atomic mass of an atom can be found by comparing the mass of the atom to the mass of?
The Hydrogen atom. Beware, Hydrogen has an atomic mass based on one proton, as it doesn't have a neutron. So Helium has a mass of four times Hydrogen.
What represents most of an atom's mass?
The nucleus of an atom represents most of an atom's mass.
What does adding A neutron to an atom's do to the atom's mass?
Adding a neutron increases the atom's mass by about 1 AMU assuming it remains stable.
Which of the following particles is used to determine the mass of an atom?
Mass of an atom is determined by the no. of protons+ no. of neutrons in the atom.
Is the mass of an iron atom any different from the mass of a copper atom?
Yes, the mass of an iron atom is different from the mass of a copper atom. The mass of an iron atom is approximately 56 atomic mass units, while the mass of a copper atom is approximately 63.5 atomic mass units. Therefore, there is a difference of about 7.5 atomic mass units between the two.
Where is he mass of an atom concentrated?
99.9% of the mass of an atom is located in the nucleus
What is the mass of a calcium atom compared with the mass of a helium atom?
5
What is the atomic mass of an atom?
The atomic mass of an atom is the combined mass of the protons and neutrons in the nucleus.
Is an atom with no mass mean it neutral?
There exists no mass less atoms. Every atom has a mass.
What is the mass of a carbon atom?
The mass of a carbon atom is approximately 12 atomic mass units.
