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A brand of lunchmeat contains 0.11% by mass of a preservative, sodium benzoate, C6H5COONa. Health Canada recommends a an upper level intake of Na to be 2300 mg. How many ounces (oz) of the meat must be ingested for a person to meet this level?
You have a 100.0- mL graduated cylinder containing 50.0 mL of water. you drop a 115-g piece of brass into the water. To what height does the water rise in the graduated cylinder.
An organic compound has a molecular weight of 176.12 amu and was found to contain only three elements, C, H and O. When a 1.0000 g sample was completely combusted in air
what is the broglie wavelength of an electron moving at one-tenth the speed of light. mass of the electron = 9.109* 10^-28
A creature moves at a speed of 3.20 furlongs per fortnight (not a very common unit of speed). Given that 1 furlong = 220 yards and 1 fortnight = 14 days
You have a 1 L. container of a gas O2 at 20 degrees celcius and 1 atm. subtracting the weight of the container, what is the mass of the gas?
What is a catchy, orignal slogan for the element neon that describes one of its important uses?
If in an experiment 42g of CO is burned with excess oxygen gas. Calculate how many grams of CO2 will be formed in the process.
Bronze is an alloy consisting of 88.0% copper and 12.0% tin. The density of copper is 9.28 g/mL and the density of tin is 7.48 g/mL. Calculate the approximate density of bronze.
what an alkane with molecular formula C8H18 gives a single product of monohalogenation?
osmium has a density of 22.6 g/cm3. what volume (in mL) would be occupied by a 21.8 g sample of osmium?
Qualitatively, describe how an acid-base indicator works. Why do we want to use a minimum amount of indicator in a titration? Select all that apply.
A copper wire (density = 8.96 g/cm3) has a diameter of 0.39 mm. If a sample of this copper wire has a mass of 43 g, how long is the wire?
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