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An atom of bromine has a mass about four times greater than that of an atom...
An atom of bromine has a mass about four times greater than that of an atom of neon. How many grams of neon will contain the same number of atoms as 1,000 g of bromine? An atom of bromine has a mass about four times greater than that of an atom of neon. Which choice makes the correct comparison of the relative numbers of bromine and neon atoms in 1,000 g of each element?
An atom of bromine has a mass about four times greater than that of an atom of neon. Which choice makes the correct comparison of the relative numbers of bromine and neon atoms in 1,000 g of each element? An unknown compound with a molar mass of 155.06 g/mol consists of 46.47% C, 7.80% H, and 45.72% CI. Find the molecular formula for the compound.
Given that mH = 1.007825 u, is the mass of a hydrogen atom 1H greater than, less than, or equal to 1/12 the mass of a 12C atom? Select the correct answer and explanation. A: 1/12 of the mass of a 12C atom is less than 1 u. Therefore, the mass of the hydrogen atom is less than 1/12 of the mass of a 12C atom. B: 1/12 of the mass of a 12C atom is exactly 1 u. Therefore, the mass of...
all of them please!!!!! 12. What is the volume, in liters, of 12.0 moles of bromine? Bromine is a liquid at room temperature and has a density of 3.12 g/cm 13. Calculate the density of sulfur if you have 9.92x102 atoms in 2.51x10 L? UNITS 14. Calculate the number of hydrogen atoms in 0.252 ML of sulfuric acid. (D=1.02g/mL) 15. Indicate whether the following is true or false. If it is false, correct it to make it true. a. If...
Ul Tuise. iSUlBpes are atoms of the same element that have the same atomic number but different mass numbers. A. True B. False 9. The table below describes four atoms. Atom B 81 120 81 Atom C 80 118 80 Atom D 79 120 79 Atom A 79 118 79 Number of protons Number of neutrons Number of electrons Which atoms represent the same element? Ul Tuise. iSUlBpes are atoms of the same element that have the same atomic number...
Post-lab Questions Part 2 8. Among the elements, hydrogen has the least massive atoms. An atom of hydrogen has an average mass of 1.66 x 10-24 g. This mass is very small, but remember it is only one atom which is composed of one proton and one electron! What is the relative mass of hydrogen if it is the least massive element? 9. How do the atomic masses found on the periodic table compare to the relative masses you calculated?...
1. Three binary compounds composed of bromine and oxygen were decomposed and the mass of each element in a sample of each compound determined. The results were: Cpd 1: 7.21 g O and 72.0 g Br Cpd 2: 4.68 g O and 11.7 g Br Cpd 3: 5.43 g O and 18.1 g Br a) Calculate the ratio of g Br/g O for each compound. b) Are the ratios from (a) consistent with the Law of Multiple...
Which carbon atom has the bromine attached Answer the questions about the molecule and what is the stereochemistry of that carbon? carbon-1 carbon-2 carbon-3 carbon-4 Which carbon atom has the methyl group attached and what is the stereochemistry of that carbon? carbon-1 carbon-2 carbon-3 carbon-4 Click on the 3D structure to access the rotational controls Which carbon atom has the bromine attached Answer the questions about the molecule and what is the stereochemistry of that carbon? carbon-1 carbon-2 carbon-3 carbon-4...
1) Which statement concerning the structure of the atom is correct A) Protons and Neutrons have most of the mass and occupy C) Electron have most of the mass and occupy very little of the volume of the atom B) Electron have most of the mass and occupy most of the volume of the atom most of the volwne of D) Protons and Neutrons have most of the mass but occupy very little of the volume of the atom 2)...
Answer the questions about the molecule. Which carbon atom has the bromine attached, and what is the stereochemistry of that carbon? carbon-1 carbon-2 carbon-3 carbon-4 R DON Which carbon atom has the methyl group attached. and what is the stereochemistry of that carbon? DODON carbon-1 carbon-2 carbon-3 carbon-4 Click on the 3D structure to access the rotational controls.