HEELP ASAP WILL AWARD BRAINLIEST AND POINTS!! Using a 68% Solution of NaCl, calculate how much (in mL) water is needed to prepare 118mL of a 11% NaCl solution? Write answer to three significant figures

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

How much heat is added if 0.814g of water increase in temperature by 0.351 degree c?

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 .