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Explain how many grams of potassium and how many grams of sulfur are theoretically needed to make 85.00 grams of potassium sulfide?
Chlorine has an average atomic mass of 35.453 amu. The main isotopes of chlorine are 35Cl which has an atomic mass of 34.968 amu and 37Cl, which has an atomic mass of 36.956amu. Given this, what is the percent abundance of each isotope in natural ..
Calculate the grams of SO2 gas present at STP in a 5.9 L container. A) 0.24 g B) 0.26 g C) 15 g D) 17 g E) 64 g
Illustrate that the rate at which shaft work is obtained or needed for a reversible change of state in a closed system at constant entropy as well as pressure is equal to the rate of change of enthalpy of the system.
a student was asked to determine the percentage of the components of a mixture of potassium bromide kbr magnesium
Nitrobenzene (C6H6NO2) is used in small quantities as a flavoring agent or in perfumes, but can be toxic in large amounts. It is produced by reaction of benzene (C6H6) with nitric acid
An important space shuttle mission has been interrupted with an emergency that will delay the return of the crew to earth indefinitely. You are an emergency team that has been assigned the task of determining how long the crew can survive before c..
What volume of 3.50M H2S is required to react with excess O2 to produce enough NH3 to fill a cylinder that is 50ft long and has a diameter of 13 ft at a pressure of 450 torr and 20°F
when 24 copper pennies are submerged in water the pennies displace 8.26 cm3 of water. if the combined mass of the
Compute the solubility of calcium carbonate in both seawater also lake water suppose the ion concentration in lake water is negligible and determine if seawater is a greater threat to the Cliffs of Dover than lake water is to the Scarborough Bluff..
how many different alkenes will be produced when each of the following substrates is treated with a strong base? a) 1-Chloropentane
Calculate the minimum concentration of Cr3+ that must be added to 0.095 M NaF in order to initiate a precipitate of chromium (III) fluoride. (For CrF3, Ksp = 6.6 x 10-11.)
Assume a temperature of 298 K and 1 M concentration. By what factor is one reaction faster than the other?
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