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200g of magnesium phosphate and 250.0g of copper bromide react, how much copper phosphate will be produced?
A chemist wants to make 6.0L of a .350M CaCl_2 solution. What mass of CaCl_2 should the chemist use?
How many resonance structures are there for the cyclohepatrienyl cation? Draw them. Are carbon-carbon bonds equivalent?
Calculate the amount of heat [kcal] released when 50.0 g of steam at 100 °C hits the skin, condenses, and cools to a body temperature of 37 °C.
54.0 mL of a 1.40 M solution is diluted to a volume of 218 mL. A 109-mL portion of that solution is diluted using 183 mL of water. What is the final concentration.
How much heat is required to warm 223 g of ice from -46.3°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
Every measurement has a measurement uncertainty. Discuss how precise and accurate measurement can be achieved in spite of the inherent measurement uncertainty.
given that the molar enthalpy of vaporization delta h for H2O(l) is 44kj at 298k, what is the standerd enthalpy change for the reaction 2H20(G)+ O2(g)---->2H2O(G)?
A 2.41-L container is filled with 189 g argon. If the pressure is 10.0 atm, what is the temperature?
What is the theoretical yield of PH3, when 150 g of Na3P is mixed with 250 grams of water? If the actual yield is 30 g, what is the % yield?
A certain first-order reaction (A products) has a rate constant of 4.80×10-3 s^-1 at 45 C. How many minutes does it take for the concentration of the reactant, [A], to drop to 6.25% of the original concentration?
Quantum number representations - What are the possible values of the four quantum numbers for one electron in a 5d orbital?
What is the percent yield of a reaction in which 111.6 g phosphorus trichloride reacts with excess water to form 60.8 g HCl and aqueous phosphorous acid (H3PO3)?
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