The molar mass of a certain gas is 49 g. what is the density of the gas in g/l at stp?

A solution is 40% ethanol (density = 0.789 g/ml) by volume and 60% water (density = 1.00 g/ml). if ray lewis has 750.0 ml of said liquid, what percentage of the mass is ethanol?

What is the name of a length that is 100 times larger than a millimeter

How are the salt ducts an adaptation to the iguanas' environment?

How are the functions of the skeletal and muscular system related

Which of the following is a correct statement about water? Hydrogen bonding causes water to be strongly cohesive. Hydrogen bonding causes water to have a low surface tension.

What is the concentration of a solution containing 1.11 g sugar (sucrose, C12H22O11, MW = 342.3 g/mol, d = 1.587 g/cm3) in 432 mL glycerine (C3H8O3, MW = 92.09 g/mol, d = 1.261 g/cm3) in molarity and molality.

What's the name of a wave moving along a line?

Does the energy in a solid increase or decrease when changing to a liquid?

Is iron a substance or mixture?

How can scientists study the composition of distant stars?