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A quantity of ice at 0°C is added to 66.4 g of water in a glass at 55°C. After the ice melted, the temperature of the water in the glass was 15°C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(g·°C).
If this energy were used to vaporize water at 100.0 degrees, how much water (in liters) could be vaporized.
A balloon containing 34.5 L of a gas at room temperature (25.0 oC) is heated to 73.5 oC. What is the volume of the balloon at this new temperature?
Suppose that you have a 2.0 L sample of hydrogen at 1.00 atm and 59 C. If you heat the sample to 84 C and it expands to a volume of 3.7 L, what will the final pressure be?
What is the sequence of the peptide? Use the one-letter abbreviations for the amino acids, and do not use dashes.
How much heat must be absorbed by the six pack to lower its temperature from 25.0C to 5.0C?
If an electric car is capable of going 220. km on a single charge, how many charges will it need to travel from Boston, Massachusetts to Miami, Florida, a distance of 1486 mi, assuming that the trip begins with a full charge?
How many moles of magnesium are needed to react with 16.0 g of O2?
approximately how many grams of NH4Cl will dissolve in 100g of H2O at 70 C?
The reaction between solid sodium and Iron (III) oxide is one in a series of reactions that inflates an automobile airbag.
What is the empirical formula of a compound composed of 3.25% hydrogen (H), 19.36% carbon (C), and 77.39% oxygen (O) by mass? 2. A compound with the empirical formula CH2 has a molar mass of 84 g/mol. What is the molecular formula for this compoun..
Assuming ideal behavior, calculate the mole fraction of toluene in the solution.
Write a detailed sheet/ flow chart for the isolation and purification of 1-bromobutane. Designate how each minor-product is removed form the major product and which layer holds the product in each experimental step performed.
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