You add 5.4 g iron to 21.80 mL of water and observe that the volume of iron and water together is 22.49 mL. Calculate the density of iron. Express your answer to two significant figures with the appropriate units. View Available Hint(s) HA Units Value You add 5.4 g iron to 21.80 mL of water and observe that the volume of iron and water together is 22.49 mL. Calculate the density of iron. Express your answer to two significant figures...
You add 4.8 g iron to 21.30 mL of water and observe that the volume of iron and water together is 21.91 mL . Calculate the density of iron. I need the value and units.
You add 8.0 g of iron to 22.10 mL of water and observe that the volume of iron and water together is 23.12 mL . Calculate the density of iron.
You add 6.1 g of iron to 23.60 mL of water and observe that the volume of iron and water together is 24.38 mL . Calculate the density of iron.
Part A The density of iron is 7.87 g/mL. What is the mass of a 2.00 cm x 4.00 cm x 1.00 cm block of iron? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) alue Units mass = Submit
You add 4.3 grams of lead to 22.71 mL of water and observe that the volume of lead and water together is 23.09 mL, Calculate the density of the lead. Express your answer to three significant figures.
Part B Calculate the mass of water produced when 8.32 g of butane reacts with excess oxygen. Express your answer to three significant figures and include the appropriate units. View Available Hint(s) Value Units Submit Part C Calculate the mass of butane needed to produce 73.4 g of carbon dioxide. Express your answer to three significant figures and include the appropriate units. View Available Hint(s) Value Units
Part C Iron has a density of 7.86 g/cm (1 cm = 1 mL). Calculate the volume (in dL) of a piece of iron having a mass of 4.25 kg . Note that the density is provided in different units of volume and mass than the desired units of volume (dL) and the given units of mass (kg). You will need to express the density in kg/dL (1 cm = 1 mL) before calculating the volume for the piece of...
Week 7 Homework ± Convert between Units of Concentration 25 of 29 Review | Constants | Periodic Table Chemists often use molarity MM, in moles/litermoles/liter, to measure the concentration of solutions. Molarity is a common unit of concentration because the volume of a liquid is very easy to measure. However, the drawback of using molarity is that volume is a temperature-dependent quantity. As temperature changes, density changes, which affects volume. Volume markings for most laboratory glassware are calibrated for room...
Part A A volume of 115 mL of H2O is initially at room temperature (22.00 °C). A chilled steel rod at 2.00 °C is placed in the water. If the final temperature of the system is 21.10 °C, what is the mass of the steel bar? Use the following values: specific heat of water = 4.18 J/(g. °C) specific heat of steel = 0.452 J/(g. °C) Express your answer to three significant figures and include the appropriate units. View Available...