Empirical formula for H2S2O8

If a pharmacist added 12 g of azelaic acid diluent should be used to prepare 8 fluidto 50 g of an ointment containing 15% ounces of the mixture? azelaic acid, what would be the final con - 8. 3 tetracaine centration of azelaic acid in the ointment?

Which of the following statements is false? Molecules with the formulas CH3CH2COOH and C3H6O2 could be structural isomers. Molecules must have a double bond to be cis-trans isomers.

Analysis of a compound indicates that it contians 1.04 g K, 0.70 g Cr, and 0.86 g O. Find its empirical formula.

What type of bond will two carbon atoms form? A.) Ionic B.) Polar Covalent C.) Nonpolar Covalent D.) Metallic

What is the h + concentration in a urine sample that has a ph of 6?

In which one of the following solutions is silver chloride themost soluble? A. 0.744 M LiNO3 B. 0.0176 M NH3 C. 0.181 M HCl D. 0.181 M NaCl E. pure water

A 5.701 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 12.28 grams of CO2 and 5.029 grams of H2O are produced. In a separate experiment, the molar mass is found to be 102.1 g/mol.

One amu is equal to the mass of an electron the mass of one proton or one electron the mass of one neutron or one electron the mass of one neutron or one proton

Given an unknown mixture consisting of two more substances, explain how could you determine whether that mixture is a true solution, a colloid or a suspension

Which isotope of lithium has 3 neutrons?