Exam 3a - Design Thinking in Education
... writing location of Hs, so either of these ( H2C=CH-CH2-CH3 or CH2=CH-CH2-CH3 ) is OK. line diagrams: C (with Hs) is at each corner and line-end. shape around C=C bond is trigonal planar (≈ 120° angles). for molecular shape, imagine sitting on central atom, asking two questions: A) in how many direc ...
... writing location of Hs, so either of these ( H2C=CH-CH2-CH3 or CH2=CH-CH2-CH3 ) is OK. line diagrams: C (with Hs) is at each corner and line-end. shape around C=C bond is trigonal planar (≈ 120° angles). for molecular shape, imagine sitting on central atom, asking two questions: A) in how many direc ...
Honors Chemistry
... 3 basic types of problems - first, two rules 1. Divide (%’s or grams) by the gram atomic mass 2. Divide the resulting #’s by the smallest of those numbers 3. Multiply by 2 or 3 only if a whole number ratio isn’t the result of step 2 example 1 - calculate the empirical formula if there is 52.17 % C, ...
... 3 basic types of problems - first, two rules 1. Divide (%’s or grams) by the gram atomic mass 2. Divide the resulting #’s by the smallest of those numbers 3. Multiply by 2 or 3 only if a whole number ratio isn’t the result of step 2 example 1 - calculate the empirical formula if there is 52.17 % C, ...
Stoich Powerpoint Review
... • Sometimes they will give you molar mass of a compound and its empirical formula. • You must find the “empirical formula mass” and divide the molar mass by the efm. ...
... • Sometimes they will give you molar mass of a compound and its empirical formula. • You must find the “empirical formula mass” and divide the molar mass by the efm. ...
How do chemists determine the formula of
... A compound has an empirical formula of NO2. The colourless liquid, used in rocket engines has a molar mass of 92.0 g/mole. What is the molecular formula of this substance? ...
... A compound has an empirical formula of NO2. The colourless liquid, used in rocket engines has a molar mass of 92.0 g/mole. What is the molecular formula of this substance? ...
... The chemical formula of a substance tells us which elements are present and how many of each element we have, e.g. CH4, HBr. The valence method can be used to work out a chemical formula. The valency of an element is how many bond it can form. Valency is the number of unpaired electrons in the outer ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 1. State the order and degree of theSchrödinger equation for a particle in a one dimensional box. 2. Normalize exp(ikx) for 0 ≤ x ≤ π 3. Evaluate pxx2. 4. Define moment of inertia. 5. Identify the perturbation term in the Hamiltonian of Helium atom. 6. Write down the Laugerre polynomial for 1S elect ...
... 1. State the order and degree of theSchrödinger equation for a particle in a one dimensional box. 2. Normalize exp(ikx) for 0 ≤ x ≤ π 3. Evaluate pxx2. 4. Define moment of inertia. 5. Identify the perturbation term in the Hamiltonian of Helium atom. 6. Write down the Laugerre polynomial for 1S elect ...
WODSS SCIENCE SCH 3UI Empirical and Molecular Formula
... John Dalton stated that _____________________________________________________________ ________________________________________________________________________________ Water has the chemical formula H2O. In terms of mass, its molecule is always made up of ________ hydrogen and __________ of oxygen. E ...
... John Dalton stated that _____________________________________________________________ ________________________________________________________________________________ Water has the chemical formula H2O. In terms of mass, its molecule is always made up of ________ hydrogen and __________ of oxygen. E ...
representing chemical compounds
... ________ 9. Whenever two elements form more than one compound, the different masses of one element that combine with the same mass of the other element are in the ratio of small whole numbers. ________ 10. The proportions of elements in a sample of a compound vary with the mass of the sample. ______ ...
... ________ 9. Whenever two elements form more than one compound, the different masses of one element that combine with the same mass of the other element are in the ratio of small whole numbers. ________ 10. The proportions of elements in a sample of a compound vary with the mass of the sample. ______ ...
Chem Catalyst
... Determining the MOLE RATIO of elements in a compound. 1. Find percent composition (if not given) 2. Divide percent composition by molar mass of element to get mole ratios 3. Simplify to whole numbers by dividing all mole ratios by the smallest one 4. Write the formula with the subscripts ...
... Determining the MOLE RATIO of elements in a compound. 1. Find percent composition (if not given) 2. Divide percent composition by molar mass of element to get mole ratios 3. Simplify to whole numbers by dividing all mole ratios by the smallest one 4. Write the formula with the subscripts ...
2.00 C = 5.99 H = 1.00 O
... molecular formula. To get the true formula we need some additional information. To find the true formula we need the true molar mass. By finding the ratio between the ratio between the true molar mass and the empirical formula’s molar mass we can find the ratio between the empirical formula and the ...
... molecular formula. To get the true formula we need some additional information. To find the true formula we need the true molar mass. By finding the ratio between the ratio between the true molar mass and the empirical formula’s molar mass we can find the ratio between the empirical formula and the ...
PDF
... where m is the mass of the rigid body, QC the position vector of C respect to Q, MQ is the moment of forces system respect to Q, IQ the tensor of inertia respect to orthogonal axes embedded in 2 and origin at Q2 1 , and aQ2 1 , ω 21 , α21 , are the acceleration of Q2, the angular velocity and accele ...
... where m is the mass of the rigid body, QC the position vector of C respect to Q, MQ is the moment of forces system respect to Q, IQ the tensor of inertia respect to orthogonal axes embedded in 2 and origin at Q2 1 , and aQ2 1 , ω 21 , α21 , are the acceleration of Q2, the angular velocity and accele ...
Chemistry Semester Exam Review IV 1-15-09
... notes, power points and the book. Bring your completed worksheet up to show me for credit when you are done……they are due before the end of the hour today. Please review these questions and answers tonight at home and come in with any questions and we will answer them in class tomorrow. 1. Write nam ...
... notes, power points and the book. Bring your completed worksheet up to show me for credit when you are done……they are due before the end of the hour today. Please review these questions and answers tonight at home and come in with any questions and we will answer them in class tomorrow. 1. Write nam ...
Problem set 7
... Quantum Mechanics 3, Spring 2012 CMI Problem set 7 Due by beginning of class on Monday Mar 5, 2012 BCH formula for x and p , SHO 1. Consider the function f (t) = etA Be−tA where A, B are a pair of operators (e.g. position and momentum or creation and annihilation operators etc.). t is a parameter wh ...
... Quantum Mechanics 3, Spring 2012 CMI Problem set 7 Due by beginning of class on Monday Mar 5, 2012 BCH formula for x and p , SHO 1. Consider the function f (t) = etA Be−tA where A, B are a pair of operators (e.g. position and momentum or creation and annihilation operators etc.). t is a parameter wh ...
Problem set 13
... (a) h6i Find the angle α between the angular velocity vector Ω and angular momentum vector L (α is half the opening angle of the cone swept out by Ω). Express α in terms of θ , the principal moments of inertia and the magnitude of angular momentum L. How does α depend on time and L? (b) h3i Suppose ...
... (a) h6i Find the angle α between the angular velocity vector Ω and angular momentum vector L (α is half the opening angle of the cone swept out by Ω). Express α in terms of θ , the principal moments of inertia and the magnitude of angular momentum L. How does α depend on time and L? (b) h3i Suppose ...
Problem set 11
... L (α is half the opening angle of the cone swept out by Ω). Express α in terms of θ , the principal moments of inertia and the magnitude of angular momentum L. How does α depend on time and L? (b) h3i Suppose I1 → I3 so that the symmetric top becomes a spherical top. Based on our study of the spheri ...
... L (α is half the opening angle of the cone swept out by Ω). Express α in terms of θ , the principal moments of inertia and the magnitude of angular momentum L. How does α depend on time and L? (b) h3i Suppose I1 → I3 so that the symmetric top becomes a spherical top. Based on our study of the spheri ...