Grams to moles Study guides, Class notes & Summaries

CHEM 121 Final Exam Questions and Answers – Portage Learning. Do the three conversions shown below, showing all work: 1. 328 K = ? oC 2. 76oC = ? oF 3. 135oF = ? K Your Answer: 1 - 328 - 273 = 55 C 2 - (76x 1.8) + 32 = 168.8 F 3 - (135 - 32) / 1.8 = 57.2 C + 273 = 330.2 K 1. 328K - 273 = 55 oC K → oC(make smaller) -273 2. 76oC x 1.8 + 32 = 168.8 oF C → o oF (make larger) x 1.8 + 32 3. 135oF - 32 ÷ 1.8 = 57.2 + 273 = 330.2 K oF → oC →K Question 2 Not yet graded / 10...

MLT License Exam Questions And Answers, Latest Updated 2024/2025 (100% Correct Answers) Which of the following describes the Westgard multi-rule R4S? A) Four consecutive control data points are within ±1s B) Four consecutive control data points are outside ± 2s C) One data point is +2SD and a consecutive data point is -2SD D) Two consecutive data points fall outside the mean four times - ANSWER C) One data point is +2SD and a consecutive data point is -2SD Feedback Westgard R4S rule: th...

total number of neutrons and protons in an atom; # protons + # electrons - Correct Answer Mass Number Most nonmetallic elements are found in which block of the periodic table? - Correct Answer p Ernest Rutherford disproved J.J. Thomson's plum-pudding model of the atom by showing that... - Correct Answer Positive matter is concentrated in the central core Plants use up copious amounts of which alkali metal, preventing most of it from being washed out to sea? - Correct Answer Potassium ...

MLS 121 Laboratory Midterm Exam Questions & answers | Best For 2024 Exam 5/20/22, 11:47 AM MLS 121 Laboratory Midterm Exam Student Identification 0 of 0 points Kindly complete the data below. MLS 121 Laboratory Midterm Exam Total points 66/100 Good Day! The MIDTERM examination is a 100-POINT ONLINE EXAM that will utilize a Google Form. It is composed of Multiple Choice questions that is answerable within TWO HOURS ONLY. The examination shall cover Activities 3 and 4. The exam questionnai...

2H2 + O2 --> 2H2O How many moles of H2 would be required to produce 5.0 moles of water? - Answer-5.0 moles 2H2 + O2 --> 2H2O What mass of H20 is formed when excess H2 reacts with 384 g of O2 - Answer-432 grams H2SO4 + 2NaOH --> Na2SO4 + 2H2O What mass of H2SO4 would be required to react with 0.75 mol of NaOH? - Answer-36.8 grams H2SO4 + 2NaOH --> Na2SO4 + 2H2O If 30.0 g of H2SO4 reacts with sodium hydroxide, what mass of water is produced? - Answer-11.0 grams Sn + 2HF --> ...

m   1. Which of the following is the mRNA start codon in most cases? A. UAA B. AGU C. AUG D. UGA 2. Which of the types of RNA is the smallest? A. mRNA B. tRNA C. rRNA D. 3. Which of the following is not considered a pyrimidine? A. C B. T C. U D. G 4. Which of the following is paired correctly? A. A-G B. C-G C. A-U D. G-T 5. Which of the following characterizes a Western blot? A. Antibody/protein hybridization B. DNA/RNA combination C. RNA ...

Mass Number - ANSWER-total number of neutrons and protons in an atom; # protons + # electrons p - ANSWER-Most nonmetallic elements are found in which block of the periodic table? Positive matter is concentrated in the central core - ANSWER-Ernest Rutherford disproved J.J. Thomson's plum-pudding model of the atom by showing that... Potassium - ANSWER-Plants use up copious amounts of which alkali metal, preventing most of it from being washed out to sea? 2:1:1:2 - ANSWER-What is the r...

First Semester Study Guide AP Chem Buck Exam 196 Questions with Verified Answers Salts containing which of the following ions are generally insoluble in cold water? a. nitrate b. acetate c. phosphate d. potassium e. ammonium - CORRECT ANSWER C. Phosphate Which of the following changes alone would cause a decrease in the value of Keq for the reaction represented above? a. Decreasing the volume of the reaction vessel b. Adding a catalyst c. Increasing the volume of the reacti...

ppm correct answers (grams analyte/grams sample)x10^6 Molarity correct answers moles analyte/liter of solution Volume Percent correct answers (volume solute/volume soution)x100 Volume ppm correct answers (volume solute/volume solution)x10^6 kilo- correct answers 10^3 deci- correct answers 10^-1 centi- correct answers 10^-2 milli- correct answers 10^-3 micro- correct answers 10^-6 nano- correct answers 10^-9 pico- correct answers 10^-12 femto- correct answers 10^-...

Intermolecular forces and how they affect physical properties /purification techniques: dipole-dipole, electrostatic, hydrogen, ion, london, - Answer-*dipole-dipole*: polar covalent molecules such as aldehydes and ketones. positive and negative end. polar molecules must be close together for force to be significant. weaker than ion-dipole forces; increase with polarity of molecule. *electrostatic*: occur between charged species, cations and anions, and are responsible for very high MP and B...