Use your answer to question 3 to calculate the al(iii) concentration in the original unknown solution by correcting for the dilution made when preparing the sample for analysis. see the "analysis of the unknown solution" step of the procedure section of the experiment for details of the sample preparation.

What are the percent by mass of copper in penny lab

Will mark brainliest 26. which of these statements are true? (3 points) a. gases are compressible b. gases fill their containers completely c. the pressure of a gas is independent of the temperature d. gases have mass e. gases exert pressure f. the pressure of a gas is dependent on the volume g. gas pressure results from the collisions between gas particles h. gases have a definite volume and shape

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.