TheMole revised
... The empirical formula for adipic acid is C3H5O2. The molecular mass of adipic acid is 146 g/mol. What is the molecular formula of adipic acid? 1. Find the formula mass of C3H5O2 ...
... The empirical formula for adipic acid is C3H5O2. The molecular mass of adipic acid is 146 g/mol. What is the molecular formula of adipic acid? 1. Find the formula mass of C3H5O2 ...
C - Upton-by-Chester High School
... GCSE and A level Chemistry • You should use your GCSE revision guide and your class notes to complete the following questions • You can check your answers at the end of the power point, with the answers section • If you are unsure about anything, you should speak to your Chemistry teacher when you a ...
... GCSE and A level Chemistry • You should use your GCSE revision guide and your class notes to complete the following questions • You can check your answers at the end of the power point, with the answers section • If you are unsure about anything, you should speak to your Chemistry teacher when you a ...
CHAPTER 4 RIGID-ROTOR MODELS AND ANGULAR MOMENTUM
... As discussed in class, the rotational motion of a diatomic molecule chemisorbed on a crystalline surface can be modelled as the rotation of a 2D Rigid Rotor. Consider F2 adsorbed on a platinum surface. The F2 bond length is 0.142 nm. Calculate the frequency (in cm-1) of the rotational transition of ...
... As discussed in class, the rotational motion of a diatomic molecule chemisorbed on a crystalline surface can be modelled as the rotation of a 2D Rigid Rotor. Consider F2 adsorbed on a platinum surface. The F2 bond length is 0.142 nm. Calculate the frequency (in cm-1) of the rotational transition of ...
Appendix-Revised_FINAL
... three fold degenerate vibration 3 state is complicated by the Coriolis interaction of the total angular momentum and the vibrational angular momentum of the 3 state (l3=1) and results in the splitting of each of the J rotational levels into three sublevels. These sublevels are commonly designated ...
... three fold degenerate vibration 3 state is complicated by the Coriolis interaction of the total angular momentum and the vibrational angular momentum of the 3 state (l3=1) and results in the splitting of each of the J rotational levels into three sublevels. These sublevels are commonly designated ...
Empirical and Molecular Formulas
... CO is a 1:1 ratio of carbon to oxygen H2O is a 2:1 ratio CO2 is a 1:2 ratio Empirical formulas can’t be reduced. ...
... CO is a 1:1 ratio of carbon to oxygen H2O is a 2:1 ratio CO2 is a 1:2 ratio Empirical formulas can’t be reduced. ...
ChemChpt 10 2014
... To balance an equation • make sure you have equal numbers of all elements on both sides of the arrow, because mass can not be lost or gained in a reaction • don’t confuse subscripts with coefficients • subscripts determine the substance, coefficients tell us how much of that substance we have • we ...
... To balance an equation • make sure you have equal numbers of all elements on both sides of the arrow, because mass can not be lost or gained in a reaction • don’t confuse subscripts with coefficients • subscripts determine the substance, coefficients tell us how much of that substance we have • we ...
CHEMICAL FORMULAE (ANSWERS) Molecule Empirical formula
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Chapter 8- Rotational Motion
... As the wheel rotates about its center through an angle θ with angular velocity ω, the point of contact between the wheel and the surface will have moved a distance l (arc of circle) given by eq. 8-1: ...
... As the wheel rotates about its center through an angle θ with angular velocity ω, the point of contact between the wheel and the surface will have moved a distance l (arc of circle) given by eq. 8-1: ...
Lecture Notes
... In this chapter we will study the rotational motion of rigid bodies about fixed axes. A rigid body is defined as one that can rotate with all its parts locked together and without any change of its shape. A fixed axis means that the object rotates about an axis that does not move. We can describe th ...
... In this chapter we will study the rotational motion of rigid bodies about fixed axes. A rigid body is defined as one that can rotate with all its parts locked together and without any change of its shape. A fixed axis means that the object rotates about an axis that does not move. We can describe th ...
Chapter 7 Chemical Formulas and Chemical Compounds
... molecular, follow the following steps: 1. Write the name of the element represented by the first symbol in the formula. 2. Write the name of the element represented by the second symbol in the formula, but change the ending of the element's name to "ide". 3. Check a reference table to determine the ...
... molecular, follow the following steps: 1. Write the name of the element represented by the first symbol in the formula. 2. Write the name of the element represented by the second symbol in the formula, but change the ending of the element's name to "ide". 3. Check a reference table to determine the ...
Empirical Formula - Waterford Public Schools
... Write correct formula of compound with subscripts 2. Calculate mass of each element in 1 mole of the compound 3. Get molar mass of compound 4. Find the fraction of the total mass contributed by each element and convert it to a percentage ...
... Write correct formula of compound with subscripts 2. Calculate mass of each element in 1 mole of the compound 3. Get molar mass of compound 4. Find the fraction of the total mass contributed by each element and convert it to a percentage ...
Chapter 1
... • Therefore, the products of a chemical reaction have to account for all the atoms present in the reactants– we must balance the chemical equation. • When balancing a chemical equation we adjust the stoichiometric coefficients in front of chemical formulas. • Subscripts in a formula are never change ...
... • Therefore, the products of a chemical reaction have to account for all the atoms present in the reactants– we must balance the chemical equation. • When balancing a chemical equation we adjust the stoichiometric coefficients in front of chemical formulas. • Subscripts in a formula are never change ...
1 STOICHIOMETRY (I) Molecular Mass: The sum of the masses of
... 775 mL of octane C8H18(l)? Assume that all volumes are measured at 20 ºC where the densities are 0.7025 g/mL for octane and 0.9982 g/mL for water. A) Limiting reactants: The reactant that is completely consumed in a chemical reaction and that limits the amount of product formed. Calculate the ex ...
... 775 mL of octane C8H18(l)? Assume that all volumes are measured at 20 ºC where the densities are 0.7025 g/mL for octane and 0.9982 g/mL for water. A) Limiting reactants: The reactant that is completely consumed in a chemical reaction and that limits the amount of product formed. Calculate the ex ...
PowerPoint-presentation
... Transitions with J = 0 give rise to the Q-branch of the vibrational spectrum. This is only allowed when the molecule possesses angular momentum parallel to the internuclear axis a diatomic molecule can possess a Q-branch only if the total orbital angular momentum for the electrons around the int ...
... Transitions with J = 0 give rise to the Q-branch of the vibrational spectrum. This is only allowed when the molecule possesses angular momentum parallel to the internuclear axis a diatomic molecule can possess a Q-branch only if the total orbital angular momentum for the electrons around the int ...
Unit 7 Chap. 7 Chemical Formulas and Compounds
... THE “OLD SYSTEM” OF NAMING BINARY MOLECULAR COMPOUNDS THE GENERAL RULE IS TO NAME THE LESS ELECTRONEGATIVE ELEMENT FIRST AND THE MORE ELECTRONEGATIVE ELEMENT SECOND. THE FIRST WORD OF A BINARY MOLECULAR COMPOUND IS MADE UP OF (A) THE PREFIX OF THE NUMBER OF ATOMS OF THE FIRST ELEMENT AND (B) THE NAM ...
... THE “OLD SYSTEM” OF NAMING BINARY MOLECULAR COMPOUNDS THE GENERAL RULE IS TO NAME THE LESS ELECTRONEGATIVE ELEMENT FIRST AND THE MORE ELECTRONEGATIVE ELEMENT SECOND. THE FIRST WORD OF A BINARY MOLECULAR COMPOUND IS MADE UP OF (A) THE PREFIX OF THE NUMBER OF ATOMS OF THE FIRST ELEMENT AND (B) THE NAM ...
STOICHIOMETRY (I) Molecular Mass: The sum of the masses of the
... The reactant that is completely consumed in a chemical reaction and that limits the amount of product formed. Calculate the expected yield using each of the given reactant amounts. Whichever reactant gives the least product is the limiting reactant. Ex: a) Iron (II) sulfide reacts with hydrochloric ...
... The reactant that is completely consumed in a chemical reaction and that limits the amount of product formed. Calculate the expected yield using each of the given reactant amounts. Whichever reactant gives the least product is the limiting reactant. Ex: a) Iron (II) sulfide reacts with hydrochloric ...
Chapter 7 - Chemical Quantities
... The coefficients from the balanced equation tell us that we need two molecules of hydrogen to react with one molecule of oxygen to give two molecules of water. From the mole concept, we can interpret the equation in terms of moles. Thus, 2 moles of hydrogen react with 1 mole of oxygen to give 2 mole ...
... The coefficients from the balanced equation tell us that we need two molecules of hydrogen to react with one molecule of oxygen to give two molecules of water. From the mole concept, we can interpret the equation in terms of moles. Thus, 2 moles of hydrogen react with 1 mole of oxygen to give 2 mole ...
