Unit 18 B Study Guide 1. Find the solubility (in mol/L) of lead(II) chloride (PbCl2) at 25oC. Ksp = 1.62e–5. A) 1.59e–2 B) 2.53e–2 C) 6.64e–17 D) 2.01e–3 E) 2.01e–2 2. The two salts AgX and AgY have very similar solubilities in water. It is known that the salt AgX is much more soluble in acid than is AgY. What can be said about the relative strengths of the acids HX and HY? A) Nothing. B) HY is stronger than HX. C) HX is stronger than HY. D) The acids have equal strengths. E)
Premium Solubility Concentration Sodium chloride
second‚ squared. Newton’s law of universal gravitation states that any two objects in the Universe exerts gravitational attraction on each other‚ with the force having a universal form: ‚ F=the gravitational force G= the universal gravitational constant R=Separation between the objects M1= First Mass M2=Second Mass Hypothesis: When two objects are dropped from the same height and distance at the same time‚ both objects would reach the ground at the same time Two different objects (weight
Premium Gravitation General relativity Gravitational constant
Kevin Flecker NT-1110 4/26/2014 Pentium Flaw The Pentium FDIV bug was a bug in the Intel P5 Pentium floating point unit (FPU). Because of the bug‚ the processor would return incorrect results for many calculations used in math and science. Intel blamed the problem on a few missing entries in the lookup table used by the company. The error was discovered by Professor Thomas R. Nicely at Lynchburg College‚ Virginia‚ USA. The error was rarely encountered by users (Byte magazine estimated that
Premium
rederick smith The Golden Ratio March 31 2011 1. The introduction: Hello my name is Frederick Smith‚ I will be speaking you about a fascinating thing that is in everything‚ it’s a part of you‚ it created you & its not just in you‚ its all around you. Its also in all plants and in all animals. Take for example an octopus has eight tentacles hence the name “octo’~pus‚ each one of its tentacles has the exact number of suckers on it and each tentacle is the same length pretty amazing right...
Premium Golden ratio Le Corbusier Aesthetics
x − 1) dx = 0‚ 0 < x < π (h) cos (i) (x + yey/x )dx − xey/x dy = 0‚ y(1) = 0 [Hint: Think homogeneous.] 4. Suppose the differential equation dP = (k cos t)P‚ dt is a model of the human population P (t) of a certain community‚ where k is a positive constant. Discuss a (non-morbid) interpretation for the solution of this equation. In other words‚ what kind of population do you think it describes? [Actually solving the equation is not helpful.] 5. Write down a differential equation for the velocity v(t)
Premium Trigraph Solution
Though it plays a major role in our everyday lives‚ we seldom stop to think of what it is that holds us down to this earth; gravity. Whenever I think of gravity‚ the same questions never fail to come to mind. What exactly is gravity? Could human life possible go on without gravity? How exactly does gravity work in terms of numbers and formulas? How was gravity truly discovered and defined‚ and by whom? Gravity is universal‚ and it not affects earth and its inhabitants‚ but also the entire nebulous
Free Newton's laws of motion Isaac Newton Solar System
system is disturbed through application of a particular stress‚ the system shifts to the direction which relieves the stress. The shifting equilibrium experiment will further explain this concept and discuss the reaction quotient and equilibrium constant. RESULTS AND DISCUSSION Seven test tubes were filled with 2.0 mL of 0.10 M Cu(NO3)2 and into each test tube‚ 1.0 mL of 0.10 M NaOH was added. Using a centrifuge‚ the precipitate was settled and the supernate was discarded. 3.0 mL of distilled
Premium Sodium chloride Sodium Chemical equilibrium
of cyclic AMP in the tissue : the reaction seems to obey simple saturation kinetics‚ a n apparent intracellular K d for cyclic AMP has been evaluated as 330 nM. The findings are consistent either with a real difference in the intracellular binding constant as compared to that measured in vitro (28 nM) or with the fact that the cyclic nucleotide in the cell may not all be available for the kinase protein receptors. They also suggest that the method described may prove useful for studying any possible
Premium Protein Signal transduction
The swimmers while swim in the swimming pools are not facing identical and constant environment‚ where they could perform according to their merits. Theses swimmers are facing vague gravitational forces‚ which becomes advantageous to some and disadvantageous for others depending upon their swimming lane positions in the swimming pool while swimming. This study is based on scientific principles of gravitational physics for the benefit of swimmers world over‚ so that they could be given equal opportunity
Premium Swimming Swimming General relativity
February 25‚ 2013 Lab: Equilibrium of Forces Purpose/Objective: The objective of this lab was to test the first condition of equilibrium for a set of concurrent coplanar forces‚ prove Lami’s Theorem‚ and to determine an unknown mass using rules of equilibrium. Procedure: In the lab‚ we wanted to find at what angles three separate weights would create a net zero force on a force table so that the ring holding the weights was exactly centered in the middle
Free Force Mass General relativity