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Question- Calculate the specific heat (J/g?C) for a 50.2-g sample of a metal that absorbs 355J when temperature increases from 35.0 ?C to 57.9 ?C
Please give an idea about how you obtained the answer
H2 reacts according to the following equation representing the synthesis pf ammonia gas: N2(g) + 3H2(g)--> 2NH3 If 1 Liter of H2 is consumed, what volume of ammonia will be produced at constant temperature and pressure
Explain how much would a liter of water primarily at 20 degrees C, be cooled by the addition of 10 cubes of steel, each 2.5 cm on a side originally at -10 degrees C We know that while ice melt its temperature stays fixed at 0 degrees C while absor..
A person weighing 77kg jogs at 1.5m/s. Calculate the momentum and wavelength of the person. Can you observe the wavelength of this person
How many moles of monobasic sodium phosphate (NaH2PO4) and dibasic sodium phosphate (Na2HPO4) must be added to water to prepare 0.875 L buffer solution that is 0.50 M phosphate with a pH = 7.1
Explain what is the relationship between the ionization energy of an anion with a 1- charge such as F- and the electron affinity of the neutral atom, F
what is the pressure at the under water site. Pressure increases at 1.0 atm for every 10 m depth; at what depth was the diver working. Assume the temp remains constant.
what is the final temperature once thermal equilibrium is reached. c) how much ice remains once thermal equilibrium is reached.
like the reaction of aldehydes with water to give aldehydehydrates ketones react with water to give ketone hydrates.
Construct the appropriate calibration curve as described in this lab and determine the %(W/W) of fluoride in the original toothpaste sample:
if you were stranded on a desert island and wanted to perform a re-crystallization what substance would best be used
As a technician in a large pharmaceutical research firm, you need to produce 400 mL of 1.00 M potassium phosphate buffer solution of pH = 7.29. The pKa of H_2PO_4^- is 7.21.
Although it might not be the best choice, a student prepares a buffer using HN3 and NaN3 solutions. Find the approximate pH of the solution s/he made by mixing 0.150L of 0.800M HN3 with 0.200L of 0.25 M N3^-
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