What net charge would you place on a 112 g piece of sulfur if you put...
What net charge would you place on a 112 g piece of sulfur if you put an extra electron on 2 in 1012 of its atoms? (Sulfur has an atomic mass of 32.1 grams per mole.) Give your answer in microcoulombs. Remember that extra electrons result in negative charge!
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What net charge would you place on a 112 g piece of sulfur if
you put...
What net charge would you place on a 395 g piece of sulfur if you put...
What net charge would you place on a 395 g piece of sulfur if you put an extra electron on 1 in 10^12 of its atoms? (sulfur has an atomic mass of 32.1.)
A 68.0-g piece of aluminum has a net charge of +4.40 HC. Aluminum has an atomic...
A 68.0-g piece of aluminum has a net charge of +4.40 HC. Aluminum has an atomic mass of 27.0 g/mol, and its atomic number is 13. (a) Calculate the number of electrons that were removed from the initially neutral aluminum to produce this charge. 2.75e13electrons (b) Determine what fraction of the original number of electrons this removed number represents Nost Ntotal (c) By how much did the original mass of the aluminum decrease after charging? kg Need Help?RWatch
Question 1 What is the net electric charge (in units of e) of an atom of...
Question 1 What is the net electric charge (in units of e) of an atom of lead (Z82)? qlead exact number, no tolerance Attempts: 0 of 5 used Question 2 Suppose a lithium atom (Z units of e? 3) has been singly ionized. What is the net electric charge of the resulting lithium ion in lithium exact number, no tolerance Attempts: 0 of 5 used Question 3 Suppose a lead atom (Z = 82) has been doubly ionized. What is...
1. An atom of Indium-112 contains 49 protons, 63 neutrons, 49 electrons. b. 49 protons, 49...
1. An atom of Indium-112 contains 49 protons, 63 neutrons, 49 electrons. b. 49 protons, 49 neutrons, 49 electrons. c. 49 protons, 49 alpha particles d. 49 protons, 63 neutrons. 2. Which of the following atomic symbols is incorrect? d. 3. How many atoms of hydrogen are present in 6.43 g of NH? a. 2.27 x 10 b. 1.28 x 10 1.16x 10 d. 6.82 10 4. A 2.55 ml sample of ethylene glycol antifreeze) has a mass of 2.83...
please complete the questions has not answering with clarification of the answer to any page Name...
please complete the questions has not answering with
clarification of the answer to any page
Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...
A 52.8 g ball of copper has a net charge of 2.7 µC. What fraction of...
A 52.8 g ball of copper has a net charge of 2.7 µC. What fraction of the copper's electrons have been removed? (Each copper atom has 29 protons, and copper has an atomic mass of 63.5.) What is the charge on the sphere contributed by protons? How many total protons are there?
Plz explain why. Thank you 6. E Go A plate carries a charge of -3.0 HC,...
Plz explain why. Thank you
6. E Go A plate carries a charge of -3.0 HC, while a rod carries a charge of +2.0 uC. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge? 7. -HINT Water has a mass per mole of 18.0 g/mol, and each water mo- lecule (H,0) has 10 electrons. (a) How many electrons are there in one liter (1.00x 10-m') of water? (b) What...
Consider a molecule with the formula C3H1106N13. How many moles of hydrogen atoms are there if...
Consider a molecule with the formula C3H1106N13. How many moles of hydrogen atoms are there if you have 7 moles of the molecule? Consider the following generic balanced reaction equation: 5A + 3B 22C If 3.3 moles of A react completely, how many moles of C will be produced? How many grams are the in 40 moles of a compound with a molar mass of 58.2 grams per mole (g/mol)? How many moles are in 176.4 grams of a compound...
ID Problems 46) A piece of silver (Ag) metal weighing 194.3 g is placed in a...
ID Problems 46) A piece of silver (Ag) metal weighing 194.3 g is placed in a graduated cylinder containing 242.0 mL of water. The volume of water now reads 260.5 mL. From these data calculate the density of silver 47) The following procedure was used to determine the volume of a flask. The flask was weighed dry and then filled with water. If the masses of the empty flask and filled flask were 56.12 g and 87.39 g, respectively, and...
help with all 8 Please! here you go Quins DHE Duration 4 10:44 Question 5 2...
help with all 8 Please!
here you go
Quins DHE Duration 4 10:44 Question 5 2 pts A molecule is polar if: There is an overall dipole moment to the molecule. the molecule is charged the overall dipole moment is zero the centers of negative and positive charge are not in the same place. Question 6 3 pts Choose all of the following that have the same number of carbon atoms as 1 mole of CoHo. 6 moles of CO2...
A 68.0-g piece of aluminum has a net charge of +4.40 HC. Aluminum has an atomic mass of 27.0 g/mol, and its atomic number is 13. (a) Calculate the number of electrons that were removed from the initially neutral aluminum to produce this charge. 2.75e13electrons (b) Determine what fraction of the original number of electrons this removed number represents Nost Ntotal (c) By how much did the original mass of the aluminum decrease after charging? kg Need Help?RWatch
Question 1 What is the net electric charge (in units of e) of an atom of lead (Z82)? qlead exact number, no tolerance Attempts: 0 of 5 used Question 2 Suppose a lithium atom (Z units of e? 3) has been singly ionized. What is the net electric charge of the resulting lithium ion in lithium exact number, no tolerance Attempts: 0 of 5 used Question 3 Suppose a lead atom (Z = 82) has been doubly ionized. What is...
1. An atom of Indium-112 contains 49 protons, 63 neutrons, 49 electrons. b. 49 protons, 49 neutrons, 49 electrons. c. 49 protons, 49 alpha particles d. 49 protons, 63 neutrons. 2. Which of the following atomic symbols is incorrect? d. 3. How many atoms of hydrogen are present in 6.43 g of NH? a. 2.27 x 10 b. 1.28 x 10 1.16x 10 d. 6.82 10 4. A 2.55 ml sample of ethylene glycol antifreeze) has a mass of 2.83...
please complete the questions has not answering with
clarification of the answer to any page
Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...
Plz explain why. Thank you
6. E Go A plate carries a charge of -3.0 HC, while a rod carries a charge of +2.0 uC. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge? 7. -HINT Water has a mass per mole of 18.0 g/mol, and each water mo- lecule (H,0) has 10 electrons. (a) How many electrons are there in one liter (1.00x 10-m') of water? (b) What...
Consider a molecule with the formula C3H1106N13. How many moles of hydrogen atoms are there if you have 7 moles of the molecule? Consider the following generic balanced reaction equation: 5A + 3B 22C If 3.3 moles of A react completely, how many moles of C will be produced? How many grams are the in 40 moles of a compound with a molar mass of 58.2 grams per mole (g/mol)? How many moles are in 176.4 grams of a compound...
ID Problems 46) A piece of silver (Ag) metal weighing 194.3 g is placed in a graduated cylinder containing 242.0 mL of water. The volume of water now reads 260.5 mL. From these data calculate the density of silver 47) The following procedure was used to determine the volume of a flask. The flask was weighed dry and then filled with water. If the masses of the empty flask and filled flask were 56.12 g and 87.39 g, respectively, and...
help with all 8 Please!
here you go
Quins DHE Duration 4 10:44 Question 5 2 pts A molecule is polar if: There is an overall dipole moment to the molecule. the molecule is charged the overall dipole moment is zero the centers of negative and positive charge are not in the same place. Question 6 3 pts Choose all of the following that have the same number of carbon atoms as 1 mole of CoHo. 6 moles of CO2...
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