Chem 111 Samenvattingen, Aantekeningen en Examens

Chem 111 Lab Questions with Complete Solutions.

Chem 111 Study Guide Questions With Complete Solutions.

What is the wavelength in meters of green light with a frequency of 5.75 × 1014 s−1? (a) 5.22 × 10−7 m (b) 1.92 × 106 m (c) 1.92 × 108 m (d) 1.73 × 1023 m - Answer-(a) 5.22 × 10−7 m What is the energy of a photon having a wavelength of 900 nm? (a) 3.33 × 1014 J (b) 2.21 × 10−19 J (c) 1.79 × 10−31 J (d) 5.96 × 10−40 J - Answer-(b) 2.21 × 10−19 J Which light has the highest energy? (a) 700 nm, red light (b) 575 nm, yellow light (c) 475 nm, blue light (d) 400 ...

Calorimetry - Answer-science of measuring heat Calculate amount of energy released using E=mc(dT) - Answer-Energy released= (mass of water heated)x(specific heat of water)(temp. change) specific heat=1.0 cal/gC 1 Cal=1000 cal What is meant by small calorie "c" and food calories "C"? - Answer-"c" is a scientific calorie which is the energy required to rise the temp of 1 gram of water by 1C "C" is 1000 scientific calories-Food Calories When walking, an average person burns 0.453 Food...

CHEM 111 (test 1) Study Guide Questions With Complete Solutions

CHEM 111 QUIZ 1 Questions with Complete Solutions.

density formula -d = m/v m = mass v = volume temp conversions -K = C + 273 C = 5/9 (F - 32) F = (C x 9/5) + 32 average atomic mass formula -(mass A)(% abundance) + (mass B)(% abundance) molecular mass formula -(mass A)(# of atoms A) + (mass B)(# of atoms B) mass of element formula -(mass of element in sample / total mass of sample) * 100 molarity with moles formula -M = n/v M = molarity n = moles of solute v = liters of solution molarity with mass formula -(M)(m...

Which of the following pieces of equipment is not used in the experiment to measure the relationship between pressure and volume? Correct Answer-an Erlenmeyer flask Which of the following statements is/are true? 1.Gases are easily compressed compared to other states of matter. 2.Gases expand to fill the volume of their container. 3.All gases that exist in real life are considered to be ideal gases. 4.Molecules of different gases readily mix with one another. Correct Answer-1,2, and 4 I...

solids Correct Answer-particles are close and organized, fixed shape liquids Correct Answer-particles are close but unorganized, varying shape gas Correct Answer-particles are far apart and unorganized, varying shape physical changes Correct Answer-done alone. ex: melting point, density, electrical conductivity (ice berg) chemical changes Correct Answer-interaction with another substance. ex: chemical reaction/change, flammability, solubility mass unit Correct Answer-kg time un...

Chem 111 chapter 1 Questions with Complete Solutions.