Given that r = 0.733, s_x = 1.871 and s_y = 3.391, the slope of the least squares

Quina

és la principal raó per la qual es recomana utilitzar paper setinat de gramatge pesant en el procés de disseny? Marca la/s resposta/es correcta/es de les

següents afirmacions.

How can you know that during the practical session the amount of NaOH you will use to convert Cu²⁺ to Cu(OH)₂ will be in excess?

Mole calculation

If you add 10.0 mL of 1.9 M NaOH, how many moles of NaOH would that be? You will need to calculate it using n = cv. Report your figure to two decimal places.

(If you are struggling with some of the maths in Chemistry there is a lot of help. See the maths hub on Moodle and talk to you TA or unit coordinator to find support.)

Mass calculation

Assuming you had 0.013 moles of copper chloride, what amount of 4 M NaOH would be the minimum volume you could use in Section 2.1 of Exercise 3?

State your answer in millilitres but remember SI units are litres. Report to one decimal place. Do not include units with your answer.

Interpreting atomic-scale depictions

Which of the following images best represents the structure of NaCl after dissolution?

Note that atomic radius has not been taken into account for the following images.