ملتقى طلاب وطالبات جامعة الملك فيصل,جامعة الدمام - اسئلة واجوبة في منهج الكيمياء التحليلة (مستوى ثالث صيدله)

لا أعلم ما هي المشكلة و لكن هذه هي الأسئلة

1) need to known the quantity of one or more components of a
sample :
Quantitative analysis

2) the sum of atomic weight ofatoms that make up a compound :
Gram – molecular weight

3) defined as the number of moles of solut dissolved per kilogram of solvent :
molality

4) water solution of ionic compounds :
conduct electricity

5) some compounds when dissolved in water conduct electricity very weakly :
weak electrolytes

6) Is a substance that contains hydroxyl group :
a base

7) Is a substance that exhibits to lose one or more protons :
an acid

8) Is any molecule or ion that can donate a pair of electrons :
a base

9) moe [H3O+]than water the solution is :
acidic

10) the reaction between acide and bases :
neutralization reaction

11) the number of molecules of the complexing agent :
ligand

12) EDTA is :
ethylene diamine tetra acetic acid

13) It is the gaining of electrons by shch particles:
Reduction

14) need to find the elements are present in a sample :
Qualitative analysis

15) the weight of a specified number of atoms of that element (avogadro's numder) :
Gram – atomic weight

16) the weight of substance in gram that will furnish mole of reacting unit :
********************alent weight

17) the number of moles of solute per liter of solution :
Molarity

18) water is a good solvent for :
ionic compound

19) solution of NaCl in water is:
conduct electricity

20) solution of suger in water :
non – electrolytes

21) Is a substance that contains hydrogen and give hydrogen ion in solution :
an acid

22) Is a substance that exhibits to gain protons:
a base

23) pure water is :
neutral and very weak electrolyte

24) more [OH-] than water the solution is :
basic

25)Hydrogen ion concentration in asolution is defined :
PH =-log[H+]

26) the solution that contains the precisely known concentration of solute is :
standard solution

27) solution with a variey of substances that have a pair unshared electrons :
complexes

28) Used for detemining chlride serves :
soludle

30)It is the process of losing electrons by an atom :
Oxidation

31) Iitmus paper are of two types:
pink and blue

32)are substances that from positive and negative ions in water :
Electrolytes

33) the number of oscillation of field per second :
Frequency

34) potassium permanganate the most widely used as :
oxidizing agent

35) the visible region of spectrum extend form about :
380 n m to about 780 n m

properties of bases :
1- produce [OH-] ions in water
2- taste bitter
3- feel soapy

properties of acids:
1- produce H+ ions in water
2- taste sour
3- corrode ****************ls

complete the flowing sentience:

1- the oxidizing agent is changed into reduced form

2- potassium permanganate the most widwly used as oxidizing agent

3- oxidation number of Mn in MnO4-2 is +6

4- the electromagnetic spectrum include gamma ray ,X-ray and UV

5- the same substancusually has different spectrum in different solvet

6- chemical formula of sulfuric acid is H2SO4

7- At room temperature most substances are in grounded state

8- Frequency is the number of oscillation of field per second

9- Used for determinaing chlorid serves the moher method

10- Used for ****************ls which are precipitated out of the solution in ph ranges necessary for indicator Back titration