What mass of lif is contained in 18.66 g of a 20.0% by mass solution of lif in water?

The alkline earth metals include?

What is the SI unit that refers to the amount of a substance?

What is the advantage of using inert gasses in a process?

Which of the following is not a part of Darwin's theory of evolution? a. Changes in organisms occur immediately. b. Organisms change over time. c. Species evolution occurs through natural selection. d. Organisms developed from common ancestors.

Describe how to find the area of a triangle (do not just give the formula)

How can you use Hess's law to determine a reaction's enthalpy?

7. How much energy in KJ is released when 15.0 g of steam at 100.0 degrees Celsius is condensed and then frozen to ice at 0.0 degrees Celsius?

Consider the reaction: 8H2S (g) + 4O2 (g) →8H2O (g) + S8 (g). Δ[H2S]/Δt = - 0.033M/s. Find Δ[O2]/Δt. Δ[H2O]/Δt. Δ[S8]/Δt. Find the rate of the reaction.

At room temperature and pressure what is the volume of one mole of oxygen?

Ibuprofen, a common pain remedy, has an empirical formula of C7H9O and a molar mass of approximately 218.078 grams per mole. What is the molecular formula of ibuprofen?