Atomic Structure
1. This question has 3 part(s).
1.1. Higher Tier Only
Titanium and iron are examples of transition metals.
Figure 6 shows the percentage abundance of each isotope in a sample of titanium.
Figure 6
Calculate the relative atomic mass of titanium in this sample.
relative atomic mass = ......................................
1.2. Iron, when heated in air, reacts with oxygen to form iron oxide.
i) This reaction is an example of (1)
☐ | A | crystallisation |
☐ | B | distillation |
☐ | C | neutralisation |
☐ | D | oxidation |
ii) The equipment shown in Figure 7 can be used to find the mass of oxygen that combines with iron.
Figure 7
Describe how the equipment shown in Figure 7 could be used to find the mass of oxygen that combines with 0.500 g of iron wool in a crucible and lid of known mass.
(3)
1.3. 2.24 g of iron combines with 0.96 g of oxygen to form an oxide of iron.
Determine the formula of this oxide of iron and use it to complete the balanced equation.
(relative atomic masses: Fe = 56.0, O = 16.0)
You must show your working.
balanced equation for the reaction is
................ Fe + ................O2 →
...............................................
Ai এর মাধ্যমে
১০ লক্ষ+ প্রশ্ন ডাটাবেজ
প্র্যাকটিস এর মাধ্যমে নিজেকে তৈরি করে ফেলো
উত্তর দিবে তোমার বই থেকে ও তোমার মত করে।
সারা দেশের শিক্ষার্থীদের মধ্যে নিজের অবস্থান যাচাই
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