3.1 Changes of state and the particle model

A student is carrying out an experiment to determine the density of a copper rivet.

The student measures the volume of the rivet by displacement of water in a measuring cylinder. The results are shown in Table 1.

Table 1

Volume of water ( $cm3\text{cm}^3$ )	Volume of water and rivet ( $cm3\text{cm}^3$ )	Volume of rivet $Y$ ( $cm3\text{cm}^3$ )
$15.8$	$19.4$	$Y$

Calculate the volume of the rivet, $Y$ , in Table 1.

[1]

The student noticed that the digital balance had a zero error: it displayed a reading of $g-0.12\text{ g}$ before any object was placed on it.

How should the student correct this error after the mass of the rivet has been measured?

[1]

A different copper rivet has a volume of $cm30.80\text{ cm}^3$ . The density of this copper is $g/cm38.9\text{ g/cm}^3$ .

Calculate the mass of this different rivet in grams. State the formula you used to link density ( $ρ\rho$ ), mass ( $m$ ), and volume ( $V$ ).

[3]

3.1 Changes of state and the particle model

3.1 Changes of state and the particle model Questions