Name Mole Lab Exercises I. Pre Lab Questions Answer the following questions. (Hint: Your textbook will be helpful.) 1. ‘s number is the number of carbon atoms that are present in 12 g of 12C. 2. How many molecules of a compound are in one mole of that compound? 3. Write out the formula for finding percent by mass. 4. Write out the formula for finding Molarity. 5. The Formula Weight of a compound is equal to mole of that compound.
Premium Molecule Water Mole
to use lactose as a food source then the yeast will be able to use lactose to produce carbon dioxide gas and ethanol because the yeast will be capable of breaking down lactose into glucose and galactose. Materials * Safety goggles | * Lab apron | * 4 flasks (100 mL) and 1 stopper | * Wax pencil (for making test tubes) | * Ruler | * 6 large beakers (400 mL) | * Thermometer | * Stopwatch | * 50 mL glucose suspension (10%) | * 50 mL yeast suspension (I package
Premium Carbon dioxide Sugar Ethanol
Homeostasis and Exercise Lab Living Environment/Lab #7 Ms. Iadanza December 2012 Problem: How does exercise affect a person’s heart rate‚ breathing rate‚ and perspiration level? Background Information: Homeostasis is the maintaining of a balanced condition in the body despite changing external conditions or demands on the body. The circulatory system works with the respiratory system in order to deliver nutrients to the body’s cells. The respiratory system is made of the mouth and
Premium Blood Heart
2.) Mrs. Tolstoy and her husband‚ Serge‚ are planning their dream house. The lot for the house sits high on a hill with a beautiful view of the Appalachian Mountains. The plans for the house show the size of the house to be 2‚900 square feet. The average price for a lot and house similar to this one has been $120 per square foot. Fortunately‚ Serge is a retired plumber and feels he can save money by installing the plumbing himself. Mrs. Tolstoy feels she can take care of the interior decorating
Premium Real estate Imperial units English-language films
reliability. This will ensure that all data collected and measured in the lab are accurate and reliable as well. The process of testing an instrument’s accuracy is known as calibration. The purpose of this lab was to calibrate a variety of equipment frequently utilized in the Exercise Physiology lab and to become familiar with the operation of the calibrated equipment (Lab manual). The equipment calibrated in the exercise physiology lab was the speed of the Parvo treadmill‚ the incline of the Cosmed treadmill
Premium Measurement Test method Chemistry
Module 2 Exam Review This review is neither a replica of the exam nor does it contain every concept in the module. It is always best practice to review all lessons and assessments. Resubmitting is a great way to review/learn and improve your grade. There are approximately 32 questions (about 3 are essays) on the regular exam; approximately 42 questions (about 5 are essays) on the honors exam. The number in parenthesis is the lesson. None of the honors lessons are in this review. The answer
Premium Atom
Pre-Laboratory Assignment 1. What are the hazards associated with sodium hydroxide (NaOH) solution? Sodium hydroxide solutions‚ especially in high concentrations‚ are toxic and corrosive. 2. (a) What buret reading should you record when the liquid level is as shown in Figure 2? In Figure 2‚ the lower meniscus lies below the 3 mL line and 4 minor gradations that signify 0.1 values. Estimating the uncertain digit to be 0.04 mL‚ the reading we record for this particular buret is 3.44 mL.
Premium Sodium hydroxide Concentration Acid
Exercise 2: Skeletal Muscle Physiology: Activity 1: The Muscle Twitch and the Latent Period Lab Report Pre-lab Quiz Results You scored 20% by answering 1 out of 5 questions correctly. 1. Skeletal muscles are connected to bones by Your answer : c. ligaments. Correct answer: b. tendons. 2. Skeletal muscles are composed of hundreds to thousands of individual cells called Your answer : b. myofibrils. Correct answer: c. fibers. 3. The term motor unit refers to Your answer : a. all of the motor neurons
Premium Skeletal muscle Neuromuscular junction Acetylcholine
Exercise 7: Respiratory System Mechanics: Activity 2: Comparative Spirometry Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. A normal resting tidal volume is expected to be around You correctly answered: d. 500 ml. 2. Which respiratory process is impaired the most by emphysema? You correctly answered: c. expiration 3. During an asthma attack You correctly answered: b. inspiration and expiration are impaired. 4. During moderate aerobic exercise‚ which
Premium Asthma
Laboratory Exercise #2 Pre Lab This lab will teach me how to use a spectrophotometer. The use of the spectrophotometer is to measure the concentration of solute. The solute being measured must be colored and is determined based on the adsorption of light photons on a wavelength. The spectrophotometer uses a beam of light that strikes the diffraction grating that basically forms of prism of light. Then only a specific wavelength of light shines through the spectrophotometer and interacts with
Free Light Optics Electromagnetic radiation