Percent ionization - Study guides, Class notes & Summaries

General Chemistry ACS EXAM Review 168 Questions with Verified Answers Rutherford's Gold Foil Experiment - CORRECT ANSWER proposed that atoms consist of a tiny, massive, positive nucleus surrounded by electrons nucleus - CORRECT ANSWER contains all the positive charge and nearly all the mass of the atom James Chadwick - CORRECT ANSWER discovered the neutron cathode rays - CORRECT ANSWER move from negative electrode to positive electrode (like electrons in a voltaic cell) Thompson...

Which statement about an element's average atomic mass is correct? - c. It is a weighted average, so common isotopes have a greater effect than uncommon ones. Which statement about the atom's nucleus is correct? - b. The nucleus is made of protons and neutrons and has a positive charge What is an atom's nucleus made of? - a. protons and neutrons The charge of an atom is - b. neutral An iron atom has an atomic mass of 56. Its atomic number is 26. How many neutrons does the iron atom hav...

Chapter 1 – The Science of Nutrition Multiple Choice Answer, level, page Level: K = knowledge, A = application/critical thinking What Do We Mean by “Nutrition”? (pp. 5-8) a A 6 1. Which of the following ingredients in a box of toaster pastries would contribute macronutrients to one’s diet? a. Water, high-fructose corn syrup, egg yolk b. Niacin, folic acid, sucralose c. Riboflavin, salt, sodium benzoate d. Thiamin mononitrate, soybean oil, sugar c K 5 2. The term “n...

ACS General Chemistry 1 studysheet Exam 124 Questions with Verified Answers 56=Mass # (A) 26= Atomic # (Z) Fe= symbol - CORRECT ANSWER 56= 26= Fe= Mass Number - CORRECT ANSWER Proton+ Neutrons Atomic Number - CORRECT ANSWER # of protons/electrons (equal in elemental form) - superscript - CORRECT ANSWER Add e- + superscript - CORRECT ANSWER subtract e- Isotope - CORRECT ANSWER Diff number of neutrons Isomer - CORRECT ANSWER two or more compounds with the same # of elemen...

What is the equation for corrected phenytoin? Correct Answer CP= measured serum phenytoin/(0.2*albumin)+0.1 What is the principle intracellular cation? Correct Answer potassium Principle extracellular is Sodium How many ml in a teaspoon? Correct Answer 5 ml How many ml in a tablespoon Correct Answer 15 ml How many ml in a cup? Correct Answer 240 ml How many ml in an ounce? Correct Answer 29.6 ml How many ml in a pint? Correct Answer 473 ml How many ml in a gallon? Correct...

Chemistry Final ACS Exam 75 Questions with Verified Answers Accuracy? - CORRECT ANSWER Closeness of measurements to the TRUE VALUE of what is being measured Precision? - CORRECT ANSWER Closeness of a SET of measurements How do you calculate Percent Error? - CORRECT ANSWER I experimental-accepted I ____________________ x 100 accepted value Are zeros infront of non-zero digis significant? - CORRECT ANSWER Nope! ex: 0.0071 is only 2 sig figs Are zeros at the end of a number and...

What are buffer solutions made of? - ANSWER-Weak acid and its conjugate base. weak base and its conjugate acid At the equivalence point what does the volume do? - ANSWER-The volume will double Insoluble bases dissolve in what solution? - ANSWER-Acidic Solutions Insoluble acids dissolve in what solutions? - ANSWER-Basic Solutions What pH is neutral? - ANSWER-pH=7 What pH is basic? - ANSWER-pH>7 What pH is acidic? - ANSWER-pH<7 What is the value of Kw - ANSWER-1.00 x 10^...

what are survey meters used to measure? - ANSWERradiation exposure rates what type of survey meter is used for surveys to detect contamination? - ANSWERGeiger-Muller (GM) counter The NRC requires that a nuc med facility have a survey meter capable of detecting exposure rates between what range? and what instrument accomplishes this? - ANSWER0.1 mRem/hr and 100 mRem/hr GM what two things can be fitted at the end of a GM counter - ANSWERend window probe and pancake probe what doe a...

What term refers to an abnormal condition of all or part of the body that makes the body incapable of carrying on normal function? A) disorder B) syndrome C) disease D) virus - Answer C) disease What three qualities must disinfectants used in salons, spas, and medical facilities have? A) bactericidal, sporicidal, and virucidal B) sporicidal, virucidal, and fungicidal C) bactericidal, sporicidal, and fungicidal D) bactericidal, virucidal, and fungicidal - Answer D) bactericidal, v...

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...