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An unknown substance has a mass of 43.3g and occupies a volume of 34.0 mL. What...
The mass of a piece of metal at 165.6 K was found to be 34.0 grams. What is the density of the metal (in g/mL) if it occupies a volume of 6.4 mL? (I don't understand how the temperature relates to the density)
An unknown sample of a metal weighs 33.01 g and occupies a volume of 4.20 mL. Calculate the density of this metal and identify
At 20°C, if the mass of the unknown is 9.1 g and its volume is 4.2 mL, what is the density of the unknown at 20°C? Select a response: 1.9 g/mL 2.2 g/mL 1.7 g/mL 0.52 g/mL 9.1 g/mlL
A 0.875 g sample of an unknown compound occupies 245 mL at 298 K and 1.22 atm. What is the molar mass of the unknown compound?
the density of a substance is 0.290 g/ml. the mass of the substance is 350.0 dg. What is the volume of the substance in liters?
The molar mass of unknown molecular compound is determined using freezing point depression. The substance is dissolved in benzene (C6H), an organic solvent. Use the data below to determine the molar mass of the substance. 8.65 g Mass of unknown compound Freezing point of solution Volume of benzene -10.21°C 35.0 mL 5.53°C Freezing point of benzene Density of benzene Kf for benzene 0.8765 g/mL 5.12°C/m Molar mass = g/mol
A block of wood has a mass of 8 g and occupies a volume of 10 cm3. What is its density?
+ 'A sample of gas with a mass of 1.020 g occupies a volume of 762 ml atu C and 1. aun (air). What is the molar mass of the gas? (20 pts) If the unknown gas is composed of 0.815 g of carbon and the rest is hydrogen, what is its molecular formula?
1)The density of the unknown liquid with the volume of 13.3 mL and a mass of 8.86 g is _______________ g/mL . 2) Describe how you can use the graduated cylinder to determine the volume of a small, irregularly-shaped metal. 3) What safety precaution should you take when adding the irregularly-shaped metal into the glass graduated cylinder?
A sample of gas of mass 1.58 g occupies a volume of 472 mL at 55 °C and 0.92 atm pressure. What is the molar mass of the gas? VALD ? g/mol