Chapter 1: Problem 7
Write the symbol for the following elements. (a) titanium (b) phosphorus (c) potassium (d) magnesium
Over 30 million students worldwide already upgrade their learning with Vaia!
All the tools & learning materials you need for study success - in one app.
Get started for free
A pycnometer is a device used to measure density. It weighs 20.455 g empty and 31.486 g when filled with water \(\left(d=1.00 \mathrm{~g} / \mathrm{cm}^{3}\right) .\) Pieces of an alloy are put into the empty, dry pycnometer. The mass of the alloy and pycnometer is \(28.695 \mathrm{~g} .\) Water is added to the alloy to exactly fill the pycnometer. The mass of the pycnometer, water, and alloy is \(38.689 \mathrm{~g}\). What is the density of the alloy?
Write the appropriate symbol in the blank \((>,<,\) or \(=)\). (a) \(303 \mathrm{~m} \longrightarrow 303 \times 10^{3} \mathrm{~km}\) (b) \(500 \mathrm{~g}\) \(0.500 \mathrm{~kg}\) (c) \(1.50 \mathrm{~cm}^{3}\) \(-1.50 \times 10^{3} \mathrm{nm}^{3}\)
Some states have reduced the legal limit for alcohol sobriety from \(0.10 \%\) to \(0.080 \%\) alcohol by volume in blood plasma. (a) How many milliliters of alcohol are in \(3.0 \mathrm{qt}\) of blood plasma at the lower legal limit? (b) How many milliliters of alcohol are in \(3.0 \mathrm{qt}\) of blood plasma at the higher legal limit? (c) How much less alcohol is in 3.0 qt of blood plasma with the reduced sobriety level?
The dimensions of aluminum foil in a box for sale in supermarkets are \(66^{2} / 3\) yards by 12 inches. The mass of the foil is \(0.83 \mathrm{~kg} .\) If its density is \(2.70 \mathrm{~g} / \mathrm{cm}^{3},\) then what is the thickness of the foil in inches?
A basketball game at the University of Connecticut's Gampel Pavilion attracted 10,000 people. The building's interior floor space has an area of \(1.71 \times 10^{5} \mathrm{ft}^{2} .\) Tickets to the game sold for \(\$ 22.00 .\) Senior citizens were given a \(20 \%\) discount. How many significant figures are there in each quantity? (Your answer may include the words ambiguous and exact.
What do you think about this solution?
We value your feedback to improve our textbook solutions.
