calculate e.m.f of a cell made up of a standard O2 half-cell in a basic solution (PH=14) and a half-cell obtained by dipping at Pt electrode into a 0.46 M Fe 2+ ion and 1.0M Fe 3+ ion solution ( electrode of the second kind)

calculate e.m.f of a cell made up of a standard O2 half-cell in a basic solution (PH=14) and a half-cell obtained by dipping at Pt electrode into a 0.46 M Fe 2+ ion and 1.0M Fe 3+ ion solution ( electrode of the second kind) Calculate [H+],[OH-],[H3PO4],[H2PO4-],[HPO42-],and [PO43-] for a 0.100 M solution of H3PO4. Calculate the pH of each of the following solutions.(a) 0.13 M KNO2_______(b) 0.43 M NaOCl_______(c) 0.36 M NH4ClO4_______ 高中物理问题（题目是英文）要详细过程A gun of mass 5.00 tonne fires a shot of mass 23kg horizontally and recoils 1.50m. The recoil is resisted by a constant force of 10.0 kN. Calculate the muzzle velocity of the shot (i.e. the speed if a 1500kg car moving with velocity of 50m/s is suddenly decelerate to a stop.its acceleration during this period is -10m/s2,and it takes 50m for the the car come to a complete stop.the coefficient of the friction is 0.8.if i want to calculate the f An electric field in a given region of space is given by E=2.30x2i (in N/C).Calculate the potential difference (VB-VA) between two points A and B,where A has coordinates (x,y,z) = (0,4.57,4.95) m and B has coordinates (x,y,z)=(7.20,2.89,4.85) 几道英文版的化学题,1.A solution is labeled 0.450M magnesium nitrate. Calculate the concentration of each ion present in solution.2.Calculate the number of moles of KOH in 150.0 mL of a 0.500M KOH solution.3.Cauculate the new concentration a boy stands on the edge of a cliff of height 60m.he throwws a stone upward so that its distance ,h m,above the cliff top is given by h=20t-5t^(b)calculate the time which elapses before the stone hits the beach(c)calculate the speed with which the st 英语翻译calculate the magnitude of the resultant of a pair of 100km/h velocity vectors that are at right angles to each other.calculate the speed of raindrops hitting your face when they fall vertically at3m/s while running horizontally at 4m/s.C 英语翻译calculate the magnitude of the resultant of a pair of 100km/h velocity vectors that are at right angles to each other.calculate the speed of raindrops hitting your face when they fall vertically at3m/s while running horizontally at 4m/s.C Java write a program to calculate the factorial of any natural number entered by a user. calculate a+bDescriptionCalculate a + b.InputThe input will consist of a series of pairs of integers a and b(0 关于e+e-annihilation的问题,牛人来.In e-e+ collisons,two narrow resonances are oberved.one of mass 3.1GeV/c^2(the J) with width 0.093MeV,and a second of mass 3.7GeV/c^2 and width 0.337MeV.Calculate the lifetimes of these particles..At higher e with the help of a computer,we can do ____（calculate）much faster. libor is a kind of rate by which banks in london calculate credits.请翻译 杭电 ACM 小弟想知道为什么循环周期是49 呢,A number sequence is defined as follows:f(1) = 1,f(2) = 1,f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7.Given A,B,and n,you are to calculate the value of f(n).InputThe input consists of multiple t I want to paint the outside walls of my house.A tin of paint covers 25 m^2,correct to the nearest 5 m^2.The outside walls of my house have an area of 320 m^2,correct to the nearest 10 m^2.Calculate the maximum number of tins of paint I may have to bu 杭电ACM 1005 javaA number sequence is defined as follows:f(1) = 1,f(2) = 1,f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7.Given A,B,and n,you are to calculate the value of f(n).The input consists of multiple test cases.Each test case contains 3 integer