The pipet Study guides, Class notes & Summaries

Experiment #: 2 Title: Density Determination Purpose: The purpose of this experiment is to learn how to calculate the density of both liquids and solids in the chemistry lab by finding the volume and mass of different substances. Procedure: Density Determination of Water: 1) A graduated cylinder is to be filled with water 2) The temperature is taken using a digital thermometer of the water in the graduated cylinder 3) A value is read and recorded in ºC for the temperature of the water ...

Distinction Level BTEC Applied Science Assignment A - Titration Practical - Making a standard solution (Verified) Why is it important to calibrate equipment Making sure that your equipment is calibrated is a crucial step in assuring the accuracy of your data. If you use equipment that read the wrong quantity, they'll be useless. If this step is skipped, it might lead to working with too much or too little of a substance, which can be problematic in some situations. To ensure that our result...

AAB MT General Knowledge General Operations(questions and answers)2023 What are four types of centrifuges commonly used in the clinical lab? - CORRECT ANSWER-Tabletop, Micro, High-Speed, and Ultra. What does the daily maintenance of a centrifuge commonly consist of? - CORRECT ANSWER-Cleaned with 10% bleach What does the periodic maintenance of a centrifuge commonly consist of? - CORRECT ANSWER-Speed check by tachometer What is the function of a centrifuge in the clinical lab? - CORRE...

Distinction Level BTEC Applied Science Assignment A - Titration Practical - Making a standard solution. Why is it important to calibrate equipment Making sure that your equipment is calibrated is a crucial step in assuring the accuracy of your data. If you use equipment that read the wrong quantity, they'll be useless. If this step is skipped, it might lead to working with too much or too little of a substance, which can be problematic in some situations. To ensure that our results are as p...

Distinction Level BTEC Applied Science Assignment A - Titration Practical - Making a standard solution. Method on calibrating scales 1. First tare your skills and make sure that it reads 0 2. Then carefully place a standard weight in the middle of the scale 3. Wait for the scale to stop processing the scale 4. Write down your results in a table 5. Assess if your results shown on the scales correspond with the actual weight of the scales My hypotenuses All of the standard weights, I predi...

Biology Praxis FORM 1 Questions and Answers Already Passed Which of the following characteristics of a material found on the bark of a tree will most likely prove that the material is a living thing? The material appears to reproduce on its own. Given the DNA sequence 5' ATGCCCTCA 3', which of the following is the correct complementary sequence of messenger RNA? 3' U A C G G G A G U 5' According to evolutionary theory, which of the following individuals has the greatest Darwini...

Experiment #: 2 Title: Density Purpose: To measure the density of some liquids and solids which includes some materials of biological interest. Procedure: 1. Dispense 10mL of water using a 10mL pipet into beaker on zeroed scale 2. Use scale to measure mass of water 3. Calculate density 4. Add 5mL of water to beaker using a 5mL pipet 5. Use scale to measure mass of water 6. Calculate Density 7. Add 10mL of water to beaker using a 10mL pipet 8. Use scale to measure mass of water 9. Ca...

Distinction Level BTEC Applied Science Assignment A - Titration Practical - Making a standard solution. Aim: The overall aim of this practical is to make a standard solution of sodium carbonate Why is it important to calibrate equipment Making sure that your equipment is calibrated is a crucial step in assuring the accuracy of your data. If you use equipment that read the wrong quantity, they'll be useless. If this step is skipped, it might lead to working with too much or too little of a ...

Grade 2 Wastewater Treatment Operator Practice Exam Q&A 2024/2025 What is the methane content in a properly operating anaerobic digester? 65 to 70% by volume What will the addition of chlorine gas do to the pH of wastewater? decrease the pH What is the purpose of a Parshall Flume? Measure the flow rate What is the typical removal efficency of settleable solids in a primary clarifier? 95 to 99% Which of the follwing is true about pumoing scum from a primary clarifier? sc...

CHEM 121 LAB FINAL EXAM QUESTIONS WITH ALL POSSIBLE SOLUTIONS ANSWERED 2024/2025 When using the Tare function on a balance, start by (1). Then (2) to cancel out that mass. Finally, (3) and record the mass of your sample. 1) Placing the glassware on the balance 2) Press the Tare/Zero button 3) Add your sample to the glassware 5.43 g A balance with ±0.01 g tolerance 1.230 g A balance with ±0.001 g tolerance 4.0000 g A balance with ±0.0001 g tolerance A graduated cylinder contains 1...