Empirical formula Study guides, Class notes & Summaries

ISDS 361A FINAL EXAM 2024 WITH 100% CORRECT ANSWERS uses all the data (the most efficient) - correct answer Standard deviation Probability - correct answer likelihood that a particular event will occurlikelihood that the random variable takes values within a particular range. coefficient of variation formula - correct answer standard deviation/mean coefficient of variation - correct answer A measure of relative variability computed by dividing the standard deviation by the mean an...

Edexcel iGCSE Chemistry, question and answer with rated solution Experiment for Diffusion? 1) HCl placed at one end of the test tube, ammonia solution at the other. 2) Where they meet, a ring of Ammonium Chloride appears. 3) The diagram shows that the ammonia is closer to the ring, showing that ammonia must have travelled faster, showing it's a lighter gas. Experiment for Dilution? 1) Put a coloured substance in a solvent e.g food colouring in water. 2) Over the time, the colour le...

Your grades have been posted and your short answer questions graded with comments. Thanks! Prof Heath Part 1 of 3 - 24.0/ 52.0 Points Question 1 of 25 4.0/ 4.0 Points A compound responsible for the odor of garlic has a molecular weight of 146 g/mol. A 0.650 g sample of the compound contains 0.321 g of carbon, 0.044 g of hydrogen, and 0.285 g of sulfur. What is the molecular formula of the compound?  A. C3H5S  B. C3H15S3  C. CH5S  D. C6H10S2 Feedback:Great! Empiri...

functional group is an alcohol. True Correct! False Question 4 3 / 3 pts True or False: In a eukaryotic cell, the organelles called peroxisomes serve the purpose of digesting macromolecules. True Correct! False Question 5 3 / 3 pts True or False: Carbon dioxide has a linear molecular shape AND has a bond angle of 109.5o. True Correct! False Question 6 3 / 3 pts Of the following, is not a property of carbon. forming covalent bonds triple bond formation Correct! po...

SCIN 131 WEEK 4 Exam QUIZ Questions With Answers Latest Graded. A sample of pure lithium carbonate contains 18.8% lithium by mass. What is the % lithium by mass in a sample of pure lithium carbonate that has twice the mass of the first sample?  A. 75.2%  B. 18.8%  C. 9.40%  D. 37.6% Feedback: Mass percent discussed in Chapter 6.2. Question 5 of 25 4.0/ 4.0 Points `I have some aliens in my basement who have developed a chemical weapon in an attempt to escape. I was able...

PHY-102 Exam 2 (Questions with Answers) - GCU. Which process supplies the energy converted to electrical energy in a nuclear power plant?  The release of steam from underground hot springs.  The fusion of small nuclei.  The fission of large nuclei.  The combustion of natural gas.  The burning of coal. 2 An explosion occurs 3400m away. Given that sound travels at 340 m/s, how long will it take for the sound of the explosion to reach you?  less than a second  3 se...

Mole - Answer-SI unit for measuring the amount of substance; Molar Mass - Answer-the mass of a mole of an element Representative particles - Answer-refers to the species present in a substance: usually atoms, molecules, or formula units Avogadro's number - Answer-the number of representative particles in a mole Avogadro's hypothesis - Answer-states that equal volumes of gases at the same temperature and pressure contain equal numbers of particles Molar volume - Answer-the quantity, 22.4...

IB Chemistry SL Latest Update Graded A+ element a substance that cannot be broken down into simpler substances. atom smallest part of an element. compound substance that contains more than one element. empirical formula this shows the simplest whole number ratio of atoms of each element in a particle of the substance. molecular formula shows the actual number of atoms of each element in a molecule of the substance. structural formula this shows the arrangement of atoms an ...

What is Avagadro's constant? - ANS-6.02 x 10^23 number of particles in a mol Define empirical formula - ANS-The simplest whole number ratio of atoms of each element present in a compound

General Chemistry placement test Study Guide Latest Update Rated A+ molecule two nonmetal atoms combined form a covalent compound called a diatomic molecules H2,O2,F2 Matter Anything that has mass and takes up space Element A substance that cannot be broken down into simpler substances Compound A pure substance made of two or more elements CHEMICALLY combined. Compound Can be decomposed by chemically Mixture A PHYSICAL blend of two or more components (aq) aqueous mixtu...