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Question- There is 0.67 moles of oxygen gas, 10 grams of nitrogen gas, and 0.5 moles of helium in a container with a total pressure of 7.75 atm. What is the partial pressure of each gas?
I want you to clarify the chemistry in this above problem.
Limestone, CaCo3, when subjected to a temperature of 900 degrees Celsius in a kiln, decomposes to calcium oxide and carbon dioxide. How much heat is evolved or absorbed when one gram of limestone decomposes?
Gold has a face-centered cubic structure and has a density of 19.3 g/cm3. What is its atomic radius?
What volume of oxygen is required to burn completely 401 cm3 (centimeters cubed) of butane, C4H10 (All substances are gases measured at the same temperature and pressure.)
Problem- How many grams of Cr3+ would be reduced to Cr by the same amount of electricity that produces 6.0 g Ag from a solution of AgNO3
What is the isentropic work required for the ideal gas case? C) If the comppressor has an efficiency of 0.78 and is NON-ideal, what is the final temp and required work?
what is the molarity of a solution made when you dilute 35 grams of sodium carbonate to a volume of 3400 ml?
write a chemical equation for rm hclaq showing how it is an acid or a base according to the arrhenius definition.
It is stated that more than one unit cell can be chosen for a structure. If they represent the same structure, however, the unit cells must have the same types of atoms
An air stream's humidity is increased by combining it with a stream of water as shown below (hr stands for relative humidity). The water evaporates and increases the moisture content of the air stream. Determine the mass flow rate of stream B
When a strong base is added to a solution of CuSO4, which is pale blue, a precipitate forms and the solution above the precipitate is colorless. What is the net chemical equation that describes this reaction? Include the phases of all species in t..
A 1.17-g sample of a mixture of cyclohexane (C6H12) and naphthalene (C10H8) is dissolved in 17.9 g of benzene (C6H6). The freezing point of the solution is 2.2°C. Calculate the mass percent of the mixture.
In the laboratory you are asked to make a 0.179 m magnesium acetate solution using 400 grams of water. How many grams of magnesium acetate should you add
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