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New folder marks Gvdddv2 NDTAP A sample of volume 211 em3 has a mass of 0.388...
A sample of volume 240 cm^3 has a mass of 0.864 kg. What is the density of the sample? Is the material gaseous or condensed
What is the volume V of a sample of 3.30 mol of copper? The atomic mass of copper (Cu) is 63.5 g/mol, and the density of copper is 8.92 x 103 kg/m3 Express your answer in cubic centimeters to 3 significant figures. View Available Hint(s) 3 cm Submit
A gaseous sample of a compound has a mass of 2.94 grams. This sample occupies a volume of 407 milliliters at a pressure of 3.21 atmospheres and a temperature of 150.0 °C. What is the molecular weight of this gaseous compound? A) 27.7 grams/mole B) 45.1 grams/mole C) 78.1 grams/mole D) 111 grams/mole
Part A What volume of a 150% by mass NaOH solution, which has a density of 1.116/mL should be used to make 465 L of an NaOH solution with a pH of 1027 Express your answer to one significant figure and include the appropriate units. Value Units Submit Previous Answers Request Answer X Incorrect: Try Again: 4 attempts remaining
A sample of lead has a mass of 21.00 kg and a density of 1.130 x104 kg/m3 at 0°C. (Assume the average linear expansion coefficient for lead is 2.900 x 10-5(°C−1).) (a) What is the density of lead at 89.00°C? (Give your answer to four significant figures.) Answer in kg/m3 (b) What is the mass of the sample of lead at 89.00°C? Answer in kg
An uninflated balloon of mass 6.00 x 10 kg has a volume of 7.10 x 10-2 m3 when fully inflated with a mixture of helium and hydrogen gas. You tie a long, heavy cord to the balloon and allow the balloon to float above a table. The length of cord lifted off the table is 283 mm, and the linear mass density of the cord is 0.260 kg/m. The mass densities are 1.286 kg/m3 for air, 0.179 kg/m3 for helium...
PRINTER VERSION Question 4 A sample of Oz gas occupies a volume of 617 mL at 25°C. If pressure remains constant, what would be the new volume if the temperature changed to: New volume (a) -5 oC ml (b) 95 OF ml (c) 1095 K mL LINK TO TEXT By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor. SUBMIT Question Attempts: 0 of 5 used SAVE POR...
answer the questions A metal block has a mass of 10 grams and a volume of 1 cubic centimeter. A piece of the same kind of metal with a volume of 2 cubic centimeters has a density of 2.5 g/cm^3 5 g/cm 10 g/cm^3 A metal block has a density of 5000 kg per cubic meter and a mass of 10.000 kg What is its volume? 2 cubic meters 3 cubic meters 5 cubic meters 15 cubic meters none of...
A sample of lead has a mass of 92.00 kg and a density of 1.130 times 10^4 kg/m^3 at 0 degree C. (Assume the average linear expansion coefficient for lead is 2.900 times 10^-5 (degree C^-1).) (a) What is the density of lead at 72.00 degree C? (Give your answer to four significant figures.) kg/m^3 (b) What is the mass of the sample of lead at 72.00 degree C? kg
A sample of gas has a mass of 0.560 g. Its volume is 119 mL at a temperature of 86 °C and a pressure of 757 Torr. Part A Find the molar mass of the gas. 0 AEO ? & mol-1 Submit Request Answer