A positive charge 1.1X10-11 C is located 10-2 m away from a negative charge of the same magnitude. Point P is exactly half way between them --what is the E field at point P?
11. The sound level in decibels (dB) is given by dB-10log(101x), where x is the intensity of the sound given in W/cm2. a) Determine the sound level in dB for a sound having an intensity of 2 x 1012 W/cm b) What would be the sound level in dB if the sound intensity were doubled?
11. The sound level in decibels (dB) is given by dB-10log(101x), where x is the intensity of the sound given in W/cm2. a) Determine the...
In Review Calculate (H3O+] in the following aqueous solution at 25 °C: [OH-] = 1.1x10-9M. Express your answer using two significant figures. VO AL ? [H3O+]= M Submit Request Answer Part B Calculate (H3O+] in the following aqueous solution at 25 °C: (OH-] = 2.9x10-2M. Express your answer using two significant figures. ΠΗ ΑΣΦ ? [H,0*] = M Submit Request Answer Pearson
A solution is made that is 1.1x10-3 M in Zn(NO3), and 0.150 M in NH Part A After the solution reaches equilibrium, what concentration c Express your answer using two sigrniticant figures. VAX4D Zn2] Request Answer Submit Provide Feedback
Part A Calculate the cell potential at 25°C when (Fe2+] = 1.7 M, [Fe3+] = 1.1x10-3 M, (Cl" ] = 3.8x10-3 M, and Pol, = 0.52 atm. Express the cell potential in volts to two significant figures. AEO t ? E = V Submit Request Answer
he Kas for HClO2, HClO, HIO and HIO3 are 1.1x10-2, 4.0x10-8, 3.2x10-11, and 1.7x10-1, respectively. Which of the following is the strongest base? ClO2- ClO IO- IO3-
Question 27 The K,s for HCIO, HCIO, HIO and HIOy are 1.1x10-2, 4.0x10-8, 3.2x10-11, and 1.7x10-1, respectively. Which of the following is the strongest base? CIO CIO 10 103
Question 17 Express the threshold of hearing (2.5 x 10-12 W/m2) and the threshold of pain (1.0 W/m2) in decibels. 4.0 dB & 1.0 dB 2.5 dB & 120 dB 4.0 dB & 120 dB 4.0 dB & 0 dB
14.3 a) If the sound intensity is 2.73 x 105 W/m', what is the intensity level in decibels? b) If the sound intensity is 7.45 x 107 W/m2, what is the intensity level in decibels?
express 0.2 M concentration in these units 1. microgram/microlitre 2. % (w/v) 3. mg/dL