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How then, how would I calculate the pH of a buffer + NCl after taking 32 mL of the solution noted above and pipet 1.0 mL of 6.0 M HCl with the pH of buffer + HCl = 4.41
The three capacitors C= 2.0E-6F in series are connected across a 30V battery. Find the potential difference across each
An airplane pilot wishes to fly to his destination 500 mi due west, but the wind is blowing at 35.3 mi/hr toward 10.7° north of west. what will be the speed of the plane relative to the ground
A chemist adds 120.0mL of a 1.12mol/L silver nitrate solution to a reaction flask. Calculate the mass in grams of silver nitrate the chemist added to the flask
Vector A is 25.0 m long and pointing 30 degree North of west and Vector B is expressed at 12.0i - 8.5j. compute the direction of the resultant vector
Copper(I) chloride is a slightly soluble salt. The copper(I) ion also combines with Cl- in excess chloride to form the complex ion CuCl2-. Calculate the molar solubility of CuCl(s) in 0.0667 M KCl.
The standard deviation is 50768, and the RSD % is 12.4%. The original mass of the tablet was 679.1 milligrams. How do I find how many milligrams of caffeine was in the original tablet
A football is kicked off at a speed of 24 m/s at 30 degree about the horizontal and lands on the field. What is the horizontal distance from the starting point
Find the concentration of Cu2+ in equilibrium with CuBr(s)and 0.10 M Br
A negative charge moves in the direction of a uniform electric field. Does the charge move to a position of higher or lower potential
Calculate the number of moles of bromine present in 14.5 mL of Br2(l), whose density is 3.12 g/mL.
If the reaction of 0.650 g of rhodium(III) sulfate with excess sodium hydroxide produces 0.320 g of rhodium(III) hydroxide, what is the percent yield
If solutions of NH4Cl (aq) and NH3 (aq) are mixed, which ions in the resulting solution are spectator ions in any acid-base chemistry occurring in the solution
A bullet shot straight up into the air returns to it's starting point in 10 seconds. What is the initial speed of the bullet
A 2,493-kg car is moving down a road with a slope (grade) of 14% at a constant speed of 13 m/s. compute the direction and magnitude of the frictional force
A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 39 at 20°C. what is the temperature coefficient of resistivity
What fragmentation would give rise to the peak at m/z 45 in the Mass Spectrum. Loss of hydroxyl group.
A snow skier, starting from rest, goes downhill for 5.00s and reaches a level spot of smooth snow. What is average velocity on level spot
If the decay of trihalomethane is first order,and 90% of the trihalomethanes in glass of tap water are gone after 3 hours, what is the decay rate constant
An electron moves from the initial position r = (0.1m)I to final position r=(0.2m)j. what is the surface charge density (i.e. charge per area) on the inner surface of the conducting sphere
When 0.0024 moles of a weak acid are dissolved in enough water to make 0.500 L, the pH of the resulting solution is 5.28. Calculate Ka.
A new fabric is made to help athletes stay cool. It has a conductivity constant of 94.465 J/(s m K). what is the power of the materials thermal conductivity
if the hindenburg held 2.0 times 10^5 m^3 of hydrogen gas at 23 degrees C and 1.0 atm, what mass of hydrogen was present
A professor drives off with his car (mass 900 kg), but forgot to take his coffee mug (mass 0.33 kg) off the roof. What is the maximum acceleration of the car
An electric eel develops a 460V potential difference between its head and tail. What is the energy delivered by this pulse