Chem120 assignment Study guides, Class notes & Summaries

1. In terms of electrons, what is an excited state? Give an example of an electron configuration for an excited state. (1 points) 2. Give the ground state electron configuration for Fe. (1 points) 3. What is a valance electron? How many valance electrons does Si have? (1 points) 4. What is the shorthand electron configuration of a potassium ion (K+)? (1 points) 5. Give the chemical formula (with charge) for each of the following polyatomic ions: (0.5 points each, 2.5 points total) 6. What ...

For the two problems given below, show ALL work and always write appropriate units at all times 1. You have samples of 3 different dandelion poisons. They cost $10 a gallon, $20 a gallon and $30 a gallon respectively. You would like to determine which one is the most effective. State your hypothesis, design an experiment, and state a result that would support your hypothesis. (1 point) 2. If a medicine has a dosage of 20 ml, how many doses are in a 4 gallon bottle? (1 point) 3. If you have ...

1. For the below, give the name of the functional group and the IUPAC name of the molecule: (0.5 point each, 5 points total) 2. Give the condensed structural formula for each of the molecules below: (0.5 point each, 5 points total) 3. Give an application for each of the following organic chemicals. (0.5 points each, 2 points total) 4. In a specific redox reaction, a species gains an electron. What redox terminology would apply to this species? (0.5 points for each term, 1 point total) 5. Det...

Solve these ideal gas law problems. Show all work for credit. 1. A gas occupies 250 mL at 739 mmHg. For a gas at constant temperature, determine the volume of gas at 514 mmHg. (1.5 points) 2. Use the molar volume of a gas, at STP, to determine the number of moles of CO2 in 4.00 L of CO2 gas. (1.5 points) 3. A sample of nitrogen (N2) has a volume of 50.0 L at a pressure of 2 ATM. What is the volume of gas at a pressure of 15 atm, if there is no change in temperature? (1.5 points) 4. A 0.6 L...

CHEM 120 Week 8 Assignment; Group Project - Stoichiometry & Dosage Calculation (CO 4)

1. Balance these chemical reactions: (2 point each, 8 points total) 2. Calculate the formula mass of Al2(SO4)3. (2 points) 3. Calculate the mass of 2.5 moles of NaOH. (1 points) 4. For the balanced chemical equation: Answer the following questions: a. If you produce 7 mols of KBr, how many mols of MgBr2 did you need? (1 point) b. If I have 2 moles of MgBr2, how much KBr can I make in moles? (2 points) 5. You are making 100 ml of a 2 M solution of HCl. How many ml of a 4 M HCl solution will y...

CHEM 120 Week 5 Assignment; Topic Approval

CHEM 120 Week 8 Assignment; Group Project - Chemistry of Nutritio

CHEM 120 Week 5 Assignment; Topic Approval

CHEM 120 Week 1 Assignment; Remediation Dropbox