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Question- What is the number of mole equivalents of H2 produced by the reaction of 1 mole equivalent of Mg(m) with H2SO4 (aq)
I want to know how this is done please show all steps in detail
isotope has a natural abundance of 57.21% and an atomic mass of 120.90382 amu. Calculate the percent abundance and atomic mass of the 123^Sb isoyope
a bottle contains 225 ml of insulin at a concentration of 50.0 mgml. what is the total mass of insulin in the
A 15.0 g piece of iron (Cp = 25.09 J/mol-C) is heated to a temperature of 47.0 ?C and then placed in contact with a 275 g piece of copper at 20.0 ?C (Cp = 25.46 J/mol-C). What was the final temperature of the two pieces of metal?
respective standard reduction potentials in volts for fe2and ag are -0.44 and 0.80. determine the value of e cell
A saturated solution of unknown metal hydroxide M(OH)2 has a measured pH of 8.91. Determine the value of Ksp for the compound.
You prepare a buffer solution by dissolving 1.77 g each of benzoic acid, HC7H5O2, and sodium benzoate, NaC7H5O2, in 900.0 mL of water.The pH of the buffer is 4.19. How much (in grams) of the buffer (benzoic acid), would you add to the 900.0 mL of ..
A 25.00 mL sample of NaOH is titrated with 26.14 mL of 0.1750 M HCl(aq). What is the concentration of the NaOH solution
Standard state is the physical state in which a substance is stable at 1 atm of pressure and a specified temperature
The pH in a lake the size of 4.0 km X 7.0 km and an average depth of 100 m is found to be 4.5. Calculate the mass of calcium carbonate that must be added to the lake water in order to raise its pH to 6.0.
(1. According to the equation shown below, how many grams of oxygen are required to react with 9.0 grams of C2H6? 2 C2H6 + 7 O2 ---> 4 CO2 + 6 H2O (2. If 3.00 grams of calcium are allowed to react with 2.00 grams of fluorine, what mass of CaF2 would ..
Hydrogen and oxygen react in a 1:8 mass ratio to form the compound H2O. Using the law of definite proportions, determine how many grams of hydrogen will react completely
The volume of a sphere is . A sphere of metal has a radius of 1.56 cm. It has a mass of 147.9 grams. What is the density of this metal?
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