Question 1

Paper 1Medium6 marks

A laboratory receives microscopic particles in sealed deliveries. Figure 1 shows the mass of one particle and the numbers of particles and cartridges in a cartridge and a delivery, respectively. The diagram is not to scale.

one particlemass = 3.8×10−18 g6.4×1013 particlesper cartridge1.5×103 cartridgesper delivery

(a) Calculate the mass of particles in one cartridge. Give your answer in standard form, correct to 2 significant figures. [2]

(b) Calculate the total mass of particles in one delivery. Give your answer in standard form, correct to 2 significant figures. [2]

(c) A laboratory requires at least 1.0 g1.0\,\text{g} of particles. Find the minimum whole number of deliveries required. [2]

(a)

Calculate the mass of particles in one cartridge. Give your answer in standard form, correct to 2 significant figures.

[2]
(b)

Calculate the total mass of particles in one delivery. Give your answer in standard form, correct to 2 significant figures.

[2]
(c)

A laboratory requires at least 1.0 g1.0\,\text{g} of particles. Find the minimum whole number of deliveries required.

[2]

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