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1. Explain the importance of a universal standard in measurement
2. Elaborate your answer in terms of metric system and conversions
A 14.0-g sample of CaCl2 is dissolved in 131 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C ..
Describe the experiment(s) (as necessary), observations (as necessary), and results (as necessary) which would allow you to distinguish
The printed label on a bottle of commercial vinegar states that the acetic acid concentration is 5%. (a) If the manufacturer had reported two significant figures int he concentration, what would the percentage range be so that all values would rou..
The mass of a golf ball is 45.9 g. If it leaves the tee with a speed of 78.0 m/s, what is its corresponding wavelength?
how many grams of the compind potassium chloride must be dissolved in 200 grams of water to make a saturated solution at 60 C.
This mixture has density of 1.391g/L and occupies a volume four times as that of pure hydrocarbon. Determine the molecular formula of the hydrocarbon.
If 405 mL of a gas at 66 degrees Celsius and 595 mm Hg weighs 1.495g, what is the molecular weight of the gas?
Compute the volume of the tank if this tank has 115 moles of neon gas and has a pressure of 57 atm at a temperature of 45 0C.
A sample containing 4.80 g O2 of gas has a volume of 15.0 L. Pressure and temperature remain constant. What is the new voume if 0.500 mole O2 gas is added.
Would a solution that has a molarity of 0.990 M KNO3 and a density of 0.988 g/mL be considered unsaturated, saturated, or supersaturated?
Calculate the rate of Fe2 O3 production (kg/min) in the outlet solid stream, and the total molar flow and composition of the outlet gas stream.
A solution is prepared by mixing 52.0 g glucose (C6H12O6) with 510.0 g water. What is the vapor pressure of this solution at 25°C
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