Density Density compares the mass of an object to its volume. is the mass of a substance divided by its volume. are measured in g/L for gases. are measured in g/cm3 or g/mL for solids and liquids.
If a 0.258-g sample of HDL has a volume of 0.215 cm3, If a 0.258-g sample of HDL has a volume of 0.215 cm3, what is the density, in g/cm3, of the HDL sample? Step 1 State the given and needed quantities. Analyze the Problem. Step 2 Write the density expression.
If a 0.258-g sample of HDL has a volume of 0.215 cm3, If a 0.258-g sample of HDL has a volume of 0.215 cm3, what is the density, in g/cm3, of the HDL sample? Step 3 Express mass in grams and volume in milliliters (mL) or cm3. Step 4 Substitute mass and volume into the density expression and calculate the density.
Osmium is a very dense metal. What is its density in g/cm3 if 50.0 g of osmium has a volume of 2.22 cm3? Osmium is a very dense metal. What is its density in g/cm3 if 50.0 g of osmium has a volume of 2.22 cm3? A. 2.25 g/cm3 B. 22.5 g/cm3 C. 111 g/cm3
Osmium is a very dense metal. What is its density in g/cm3 if 50.0 g of osmium has a volume of 2.22 cm3. Step 1 State the given and needed quantities. Analyze the Problem Step 2 Write the density expression.
Osmium is a very dense metal. What is its density in Osmium is a very dense metal. What is its density in g/cm3 if 50.0 g of osmium has a volume of 2.22 cm3. Step 3 Express mass in grams and volume in cm3. Step 4 Substitute into the density expression.
Volume displacement is Volume displacement is the volume of a solid of water displaced when it is submerged.
Measure the mass of the solid before submerging it in water to determine its volume. The density of this zinc object is calculated from its mass and volume.
What is the density (g/cm3) of 48.0 g of a metal if the level of water in a graduated cylinder rises from 25.0 mL to 33.0 mL after the metal is added? What is the density (g/cm3) of 48.0 g of a metal if the level of water in a graduated cylinder rises from 25.0 mL to 33.0 mL after the metal is added? A. 0.17 g/cm3 B. 6.0 g/cm3 C. 380 g/cm3 33.0 mL 25.0 mL object
What is the density (g/cm3) of 48.0 g of a metal if the level of water in a graduated cylinder rises from 25.0 mL to 33.0 mL after the metal is added? Step 1 State the given and needed quantities. Analyze the Problem. Step 2 Write the density expression.
What is the density (g/cm3) of 48.0 g of a metal if the level What is the density (g/cm3) of 48.0 g of a metal if the level of water in a graduated cylinder rises from 25.0 mL to 33.0 mL after the metal is added? Step 3 Express mass in grams and volume in cm3.
What is the density (g/cm3) of 48.0 g of a metal if the level What is the density (g/cm3) of 48.0 g of a metal if the level of water in a graduated cylinder rises from 25.0 mL to 33.0 mL after the metal is added? Step 4 Substitute mass and volume into density expression. Answer: B
Ice floats in water because the density of ice is less than Ice floats in water because the density of ice is less than the density of water. Aluminum sinks in water because its density is greater than the density of water.
Density can be written as a conversion factor.
Density can be used as a conversion factor. A density of 3.8 g/mL, can be written as an equality, or written as conversion factors.
If the density of milk is 1.04 g/mL, how many grams of If the density of milk is 1.04 g/mL, how many grams of milk are in 0.50 qt of milk? Step 1 State the given and needed quantities. Analyze the Problem.
If the density of milk is 1.04 g/mL, how many grams of If the density of milk is 1.04 g/mL, how many grams of milk are in 0.50 qt of milk? Step 2 Write a plan to calculate needed quantity. volume US–Metric density mass factor factor Step 3 Write equalities and conversion factors.
If the density of milk is 1.04 g/mL, how many grams of If the density of milk is 1.04 g/mL, how many grams of milk are in 0.50 qt of milk? quantity.
The density of octane, a component of gasoline, is 0.702 g/mL. What is the mass, in kg, of 875 mL of octane? A. 0.614 kg B. 614 kg C. 1.25 kg
The density of octane, a component of gasoline, is The density of octane, a component of gasoline, is 0.702 g/mL. What is the mass, in kg, of 875 mL of octane? Step 1 State the given and needed quantities. Analyze the Problem
The density of octane, a component of gasoline, is 0.702 g/mL. What is the mass, in kg, of 875 mL of octane? The density of octane, a component of gasoline, is 0.702 g/mL. What is the mass, in kg, of 875 mL of octane? Step 2 Write a plan to convert the given unit to the needed unit.
The density of octane, a component of gasoline, is 0.702 The density of octane, a component of gasoline, is 0.702 g/mL. What is the mass, in kg, of 875 mL of octane? Step 3 State the equalities and conversion factors.
The density of octane, a component of gasoline, is 0.702 The density of octane, a component of gasoline, is 0.702 g/mL. What is the mass, in kg, of 875 mL of octane? Step 4 Set up the problem to cancel units and calculate the answer. Answer: B
Specific Gravity (sp gr) Specific Gravity (sp gr) is the relationship between the density of a substance and the density of water. is determined by dividing the density of the sample by the density of water. is a unitless quantity.
Specific Gravity is measured by an instrument called a hydrometer.
Which of the following samples of metals will displace the greatest volume of water? Which of the following samples of metals will displace the greatest volume of water? A B C
The correct answer is A. The correct answer is A. Plan: Calculate the volume for each metal, and select the metal sample with the greatest volume.
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