Identify the following compound from its IR and proton NMR spectra. C4H6O: NMR: δ 2.43 (1H, t, J = 2 Hz); δ 3.41 (3H, s); δ 4.10 (2H, d, J = 2 Hz) IR: 2125, 3300 cm–1 The C4H6O compound liberates a gas when treated with C2H5MgBr.

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?

Can someone me with 6 to 10 plz this is for masteries test.

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .