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4.75 grams of NaOH are added to 25.0 ml of water in a volumetric flask. 10.0 ml of resulting solution are removed as well as diluted to a final volume of 100.0 ml. Explain what is the concentration of NaOH in the final solution?
A backyard swimming pool holds 190 cubic yards ({{yd}}3) of water. What is the weight of the water in pounds
A snack pack of potato chips holds 28 grams of chips. Based on your data, how much fat is present in a snack pack? In such a bag of chips, there are about 15 grams of carbohydrate and about 1 gram of protein.
Since you need pressure based constant use ideal gas equation (PV=nRT) to convert moles of gas into pressure with units of atmospheres. R=0.0821 L atm/mol K
a 250ml solution of NaOH has 20g of solute. what is the concentration in moles per litre? what is the concentration of each ion?
Explain a flask containing gaseous N2 is irradiated with 25 nm light. The irradiated molecular of N2 can absorb the energy from the light photons. Utilizing the following information indicate what species can from in the flask during irradiation.
0.02 grams of AgNO3 is dissolved in 1.0 L water. What is its concentration as parts per million
the freezing point of the solution is 5.144 degrees celcius. Pure benzene freezes at 5.444 degrees celcius and has a Kf of 5.12 degrees celcius/m. What is the molar mass of thyroxine
Diamonds are measured in carats where 1 carat= 0.200 g. The density of diamond is 3.51 g/cm^3. What is the volume of a 2.50-carat diamond
Describe an apparatus by which azeotrope formation can be used to drive the equilibrium toward the products, thus maximizing the yield.
The reaction of 0.130 moles of a metal with an acidic aqueous solution in a calibrated calorimeter causes the temperature to increase by 49.0°C.
The volume of a gas is 5.0L when the temperature is 5.0C. If the temperature is increased to 10.0C without changing the pressure what is the new volume?
3- Complete combustion of 3 moles of cycloheptatriene (C7H8) would require how many moles of oxygen, and produce how many moles of water
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