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?

Select the correct identity of glacial acetic acid. It is acetic acid that is held below 0 ∘ C. It is pure, anhydrous acetic acid. It is an isomer of acetic acid. It is acetic acid in the solid phase.

What do the energy resources uranium and coal have in common? A. they both are formed from the remains of dead organisms. B. they both generate radioactive wastes. C they both are acquired by mining the lithosphere.

What's a period? What do elements in the same period have in common?

Spattering does occur and some of the sample is lost onto the laboratory bench. Will the reported mole ratio of tin to oxygen be too high, too low, or unaffected? Explain

Which has greater density? (densities of common substances"table.) A-air set sea level B - air at 20 km altitude

TRY H Vele Elements y Llectron Configurations for P-Block Use the periodic table to determine the electron configuration for aluminum (AI) and arsenic (As) in noble-gas notation A [Ar]352301 [He1232206352301 [Ne]3:23p1 [Ne]352302

If you measure the mass of a model car to be 230 grams. the actual mass is 218 grams. what is your percent error.

If I have 1.9 moles of gas held at a pressure of 5 atm and in a container with a volume of 50 liters, what is the temperature of the gas?

A student measured 1.0 kcal when the student combined 99.7 mL of 3 M HCl with 100 mL of 3 M NaOH. Given that the reaction is HCl (aq) + NaOH (aq) → NaCl (aq) + H2O what was ΔHneutralization per mole of water?

Which is the odd one brass, copper, aluminum, iton, sapphire