How many molecules are in 5 moles of C3H8? Show set up and answer

(I feel like I know this, but I'm stuck - the molar mass of C3H8 is 44.1g)

What volume (in L) of a 2.46 M. magnessium nitrate (Mg (NO3) 2) solution would be needed to make 275 mL of a 0.758 M solution by dilution?

The law of conservation of energy describes the total amount of energy in a system. Which statements explain why the conservation of energy is a law and not a theory? Check all that apply. It is a statement of fact.

All the following steps need to be followed when naming alkanes, except A. beginning numbering at the end farther from the first branch. B. locating the longest carbon chain. C. using prefixes to designate identical branches. D.

The basic atom has a neutral charge. True or False

Which of the following cannot be the chemical symbol for an element a. co b. cf c. b d. cu

The balanced equation for the generation of sugar from sunlight water and co2 is

Isotopes of the same element have different ... A. Positions on the periodic table b. atomic numbers C. Mass number

How many moles of O2 are needed to make 1.98 moles of SO3

How many protons are in the nucleus of isotopes L?

What is the empirical formula for a compound that contains 38.77% Cl and 61.23% O?