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A student adds 4.00g of dry ice (solid CO2) to an emptyballoon. What will be the volume of the balloon at STP after allthe dry ice sublimes (converts to gaseous CO2)?
The reaction can be catalyzed by a strong acid. A food chemist determines that an increase in temperature from 50 to 60 degrees Celcius increases the initial rate of this reaction by a factor of 2.12
Element symbols and Chemical formulas - What is the total number of atoms found in each of the following compounds? What is the total number of elements found in each?
What is the ph change of a 0.300 M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.130 M with no change in volume
The boiling point of a solution containing 10.44 g of an unknown nonelectrolyte in 50.00 g of acetic acid is 159.2°C. What is the molar mass of the solute?
Identify the missing particle in the following equation: 238:92 U --> 4:2 He + ? a) 242:94 Pu b) 234:90 Th c) 242:90 Th d) 234:92 U E) None of these
If a sample of 6.022 g of CH4 is enclosed in a 30 L container at 402 K. What is its pressure in atmospheres?The volume is reduced to 12 L at constant temperature. What is the new pressure in atmospheres.
In a lab you need 1.0M, 0.1M, and 0.05M Cu2+. How could you make 50.0mL of each of these three solutions with only 10.0g of Cu(NO3)2 available
explain why the swirling of a solution and its drying agent hastens the drying
The flask was then shaken until the solution was uniform. A 60.0-\rm mL sample of this glucose solution was diluted to 0.500 \rm L. How many grams of glucose are in 100 mL of the final solution
If the valve is open and the gasses mix and assuming that the temperature is constant, what is the final total pressure
How many milliliters of an aqueous solution of 0.180 M manganese(II) bromide is needed to obtain 12.8 grams of the salt ?
If you can please tell me what my instructer means and help me awnser in it?? because i have some trouble when it comes to science
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