Concept explainers
(a)
Interpretation:
The mass and number of plain and jam-filled doughnuts to be calculated.
Concept Introduction:
Density: the density of the substance is calculated using the formula:
Atoms: Atoms consist of tiny particles called protons, neutrons and electrons. Proton and neutrons are present in the nucleus and the electron resides around the nucleus. The protons number will be same as the electrons count in the atom.
(a)
Answer to Problem 4PPC
The mass of plain and jam-filled doughnuts is
Explanation of Solution
Calculate the mass of dozen plain and jam-filled doughnuts:
The mass ofplainand jam-filled doughnuts is
The mass and number of plain and jam-filled doughnuts was calculated.
(b)
Interpretation:
The mass and number of plain and jam-filled doughnuts to be calculated.
Concept Introduction:
Density: the density of the substance is calculated using the formula:
Atoms: Atoms consist of tiny particles called protons, neutrons and electrons. Proton and neutrons are present in the nucleus and the electron resides around the nucleus. The protons number will be same as the electrons count in the atom.
(b)
Answer to Problem 4PPC
The Number of plain and jam-filled doughnuts is
Explanation of Solution
Calculate the Number of plain and jam-filled doughnuts:
The Number of plainand jam-filled doughnuts is
The mass and number of plain and jam-filled doughnuts was calculated.
(c)
Interpretation:
The mass and number of plain and jam-filled doughnuts to be calculated.
Concept Introduction:
Density: the density of the substance is calculated using the formula:
Atoms: Atoms consist of tiny particles called protons, neutrons and electrons. Proton and neutrons are present in the nucleus and the electron resides around the nucleus. The protons number will be same as the electrons count in the atom.
(c)
Answer to Problem 4PPC
The total mass of plain doughnuts is
Explanation of Solution
Calculate the mass of plain doughnuts:
The total mass of plain doughnuts is
The mass and number of plain and jam-filled doughnuts was calculated.
(d)
Interpretation:
The mass and number of plain and jam-filled doughnuts to be calculated.
Concept Introduction:
Density: the density of the substance is calculated using the formula:
Atoms: Atoms consist of tiny particles called protons, neutrons and electrons. Proton and neutrons are present in the nucleus and the electron resides around the nucleus. The protons number will be same as the electrons count in the atom.
(d)
Answer to Problem 4PPC
The total mass of dozen doughnuts is
Explanation of Solution
Calculate total mass of dozen doughnuts:
The total mass of dozen doughnuts is
The mass and number of plain and jam-filled doughnuts was calculated.
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Chapter 2 Solutions
EBK CHEMISTRY: ATOMS FIRST
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