What is the mass of a gold bar that is 7.379 × 10–4 m3 in volume? the density of gold is 19.3 g/cm3?
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X cm³ of 0.15 mol dm³ zinc nitrate solution Zn(NO3)2 is pipetted into a 500 cm³ volumetric flask to produce 500 cm³ of 0.018 mol dm³ zinc nitrate solution. Zn(NO3)2. Determine the value of X.
Molar mass of Zinc nitrate = 189.36 189.36 × 0.018 =3.41×10 = 34.1= 500× 0.15/34.1= 2.2cm3
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The density of silver is 110.49 g/cm3. If a sample of pure silver has a volume of 112.993 cm3, what would the mass?
As we know, mass equals volume times density. So in our case we have: mass=volume*density=112.993 cm3 *110.49 g/cm3=12 480 g=12.48 kg
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A body of density 9.0 grams per centimeter cube(g/cm3) appears to have a mass of 27.0 grams in a liquid of density 1.2 grams per centimeter cube(g/cm3), what is the volume of the solid?
ρ=m/V V=m/ρ V(solid)=27.0/9.0=3 cm3
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If 100 cm3 of 37% hydrochloric acid, density 1.18 g / cm3, is added to 4900 cm3 of water, calculate the mass concentration of the newly formed solution!
1) Density = m / Vm = d x V = 1.18 x 100 = 118 gm (HCl) = 118 x 0.37 = 43.66 g2) Density of water is 1...
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1. Ten grams of plastic beads with a density of 1.2 g/cm3 are added to 500 ml of an organic solvent with a density of 0.80 g/cm3. What is the concentration of plastic beads in mg/L?
Solution:Mass of plastic beads = 10 gVolume of plasctic beads = (10 g) / (1.2 g cm-3) = 8.33 cm3 = 8.33 mLVolume of organic solvent = 500 mLVolume of solution...
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A sample of sand has a volume of 4.46 cm3 and a density of 2.69 g/cm3. What is its mass in grams
density = m / Vm = density x Vmsand = 2.69 x 4.46 = 12.00 g
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An alloy of mass 588g and volume 100cm3 is made of iron of density 8.0g/cm3 and aluminium of density 2.7g/cm3. Calculate the proportion (i) by volume, (ii) by mass of constituents of the alloy
1 cm3 of alloy would weigh 588/100 = 5.88 g1 cm3 of iron would weigh = 8.0 g1 cm3 of aluminum would weigh = 2.7 gLet proportion of iron be...
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The density of ice near 0 C. is 0.917 g/cm3. If a 11.9 g ice cube floats on the surface of water (1.00 g/cm3), what volume of the ice is visible above the surface?
Density = Mass/Volumehere density = 0.917g/cm3 , mass = 11.9 g.Volume= Mass/Density = 11.9/0.917 cm3= 12.97 mL
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<ol><li>A student has a piece of silver. The density of silver is 14.09g/cm3. If the mass of the piece of silver is 89.05g, what is the volume, in cm3, of the piece of silver? </li></ol>
Accordng to the equation, the volume can be determined as following:V = m/dwhere m - mass, d - density, V - volume.From here:V = 89.05 g / 14.09g/cm3 = 6.32...
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The density of copper is 8.94 g/cm3
at 20 and 8.91 g/cm3 at 60 . This density decrease is
the result of
The decrease in density of copper is the result of increase in volume from 20 to 60 while the mass remains constant. The density is the ratio between mass and...
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