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A box contains 36 tins of cleaning powder. Each tin contains 225 g of the powder, and the tin itself has a mass of 15 g. If the full box has a mass of 10 kg, what is the mass of the empty box?
$"Mass of each tin" = "mass of powder + mass of tin" = "225 g + 15 g" = "240 g"$ $"Mass of 36 tins" = 36 color(red)(cancel(color(black)("tins"))) × "240...
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If 12 ounces of a liquid has a mass of 317 g, what is the density of the liquid in grams per cubic centimeter?
$"1 fluid oz=29.5735 mL"$ $"1 mL=1cm"^3"$ To convert fluid ounces (fl oz) to cubic centimeters $("cm"^3")$, multiply fl oz times $29.5735"mL/fl oz"$. $12cancel"fl oz"xx(29.5735"mL")/(1cancel"fl oz")="354.882 mL"$ Since $"1 mL=1 cm"^3"$,...
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An empty 250 mL beaker has a mass of 60 g. When 100 mL of oil is added to the beaker, the total mass is 140 g. What is the density of the oil?
To find the of the oil, all you have to do is figure out how many grams you get in $"1 mL"$ of oil. In that regard, the density...
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A student weighed an empty graduated cylinder and found that it had a mass of 25.23 g. When filled with 25.0 mL of an unknown liquid, the total mass was 50.92 g. What is the density of the liquid?
For your problem, $rho=((50.92-25.23)*g)/(25.0*mL)$ $=$ $1.03*g*mL^-1$ Alternatively $rho=((50.92-25.23)*g)/(25.0xx10^-3L)$ $=$ $??g*L^-1$
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An empty 250 ml beaker has a mass of 60 g. When 100 mL of oil is added to the beaker the total mass is 140 g. What is the approximate density of the oil?
$rho,"density"$ $=$ $"Mass"/"Volume"$ $rho_"oil"$ $=$ $"Mass"/"Volume"$ $=$ $((140-60)*g)/(100*mL)$ $=$ $(80*g)/(100*mL)$ $=$ $??g*mL^-1$ Will the oil float on water? Why or why not?
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An empty graduated cylinder has a mass of 34.90 g. The cylinder is filled to the 9.40 mL mark with a liquid. The mass the cylinder with liquid is found to be 47.99 g. What is the density of the liquid?
$"Density"$ $=$ $"Mass"/"Volume"$ $=$ $(47.99*g-34.90*g)/(9.40*mL)$ $=$ $??g*mL^-1$.
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An empty graduated cylinder weighs 45.8772 g. After 20.0 mL of a liquid is added, the cylinder and its contents weigh 77.7572 g. What is the density of the liquid in g/mL?
Given, $V = 20.0"mL"$ $m = 77.7572"g" - 45.8772"g" approx 31.880"g"$ Recall, $rho = m/V$ Hence, $rho = m/V approx (1.59"g")/"mL"$
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A graduated cylinder has a mass of 50 g when empty. When 30 mL of water is added, it has a mass of 120 g. If a rock is added to the graduated cylinder, the level rises to 75 ml and the total mass is now 250 g. What is the density of the rock?
We're asked to find the of the rock, given some mass and volume information. We're given that the mass of the system before the rock was added was...
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Which would have more density - a piece of wood with a mass of 250 grams or 1,500 grams of the SAME TYPE of wood?
By definition.... $rho,$ $"density"$ $=$ $"mass"/"volume"$, and thus is an INTENSIVE material property rather than an extensive property such as mass or charge. Is the density likely to be...
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What is the atomic mass of hafnium if, out of every 100 atoms, 5 have a mass of 176, 19 have a mass of 177, 27 have mass of 178, 14 have a mass of 179, and 35 have a mass of a 180?
If there are two an element $"Average atomic mass" = "mass"_axx "fract"_a + "mass"_b xx "fract"_b$ In the given problem about Hafnium, 5 isotopes have been given. Extending the...
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