2 2k - Study guides, Class notes & Summaries

Molarity (M) - mols solute / L of solution Molality (m) - mols solute / kg solvent Freezing point depression / boiling point elevation deltaT(b) or deltaT(f) - deltaT(b or f) = i*K(b or f)*m i = Van't Hoff factor Kb or Kf = constant m = molality of solute Osmotic pressure (pi) - pi = i*M*R*T i = Van't Hoff factor M = molarity R = gas law constant 0.08206 L*atm/K*mol T = temperature (K) Van't Hoff factor (i) - i = mols of particles in solution / mols of solute dissolves applies fo...

ionic compounds -deals with charged particles -oppositely charged particles are attracted to each other -look for presence of metals and polyatomic ions molecular compounds -share electrons -nonmetals -no polyatomic ions unless its an acid Type I metals -ionic compounds -group 1A,2A,3A -one type of charge state -Name of metal +ion -if metal+nonmetal: name of metal+base name of nonmetal +ide -if metal+polyatomic ion: name of metal+name of polyatomic ion Type II metals -ionic com...

What is an Arc Flash? - ANSWER-A short circuit that jumps through the air from one exposed conductor to another. What makes an Ar Flash dangerous? - ANSWER-Temperatures of up to 35k' F, shrapnel, molten metal, chocks, shockwave (2k lbs/foot^2), soud (140 dB), burn injuries. Hazard/Risk Category 1 contains PPE requirements. What are they? - ANSWER-hardhat, safety glasses, hearing protection, heavy duty leather gloves, leather work

The transformation R of the plane is reflection in the line x = 0. (a) Write down the matrix M associated with R. [1] (b) Find M2 . [1] (c) Interpret the result of part (b) in terms of the transformation R. [1] 2 In this question you must show detailed reasoning. The equation x 2 - kx + 2k = 0, where k is a non-zero constant, has roots a and b. Find a + b in terms of k, simplifying your answer. [4] b a 3 In this question you must show detailed reasoning. The function f(z) is given...

Wisconsin MPJE Module 2 Questions and Answers Graded A+ What is the composition of the Pharmacy Examining Board in Wisconsin? How are members appointed? · 7 members - 5 WI licensed RPH, 2 public members · Members nominated by the governor and approved by state senate · Members appointed to staggered 4-year terms, expiring on July 1 · No more than 2 consecutive terms The Pharmacy Examining Board or it's designee may authorize two things that allow pharmacies to deviate from rul...

AQA History7042 2K question paper History A 7June 2024

OPOTA UNIT 2 TOPICS 2- 1,2-2A,2-2E,2-2K,2-2O,2-3,2- 6,2-7 VERIFIED SOLUTIONS 2023//2024 2.1-Define the culpable mental states "purposely," "knowingly," "recklessly," and "negligently." - ANSWER -Purposely - A person acts purposely when it is the person's specific intention to cause a certain result, or , when the gist of the offense is a prohibition against conduct of a certain nature, regardless of what the offender intends to accomplish thereby, it is the offender's spec...

What type of entry door is required between the garage and entrance to the house? Fire door/Self-closing door Broker Knorr advertised that anyone who bought a property listed with a broker would receive a free flat screen TV valued at $2K. Such action is: This is legal as long as everyone is notified. When real property secured by a first trust deed sells for a price that is less than the loan amount owed on that note, this is called: A deficit disbursement A real estate agent sold a house...

AQA A-level HISTORY 7042/2K Component 2K International Relations and Global Conflict, c1890–1941 Version: 1.0 Final IB/M/Jun23/E4 7042/2K A-level HISTORY Component 2K International Relations and Global Conflict, c1890–1941 Friday 9 June 2023 Afternoon Time allowed: 2 hours 30 minutes Materials For this paper you must have: • an AQA 16-page answer book. Instructions • Use black ink or black ball-point pen. • Write the information required on the front of your answer b...

Base Method Multiplication correct answers 105×107 100+(5+7)|35 (5×7) =11235 97×102 =100-1 | -06 =9900-06 =9894 better to use for base 10,100,.. Units Digit Method (multiplication) correct answers This method of multiplication uses the sum of the unit's digit, provided all the other digits on the left-hand side of the unit digit are the same. 62*63= (6+0.5)x6 | (2+3) 39 | 06 3906 10^n Method (squaring) correct answers B+2x | x^2 Squaring Properties correct answer...