Question

36 g
-24
19. Read the following and answer any four questions from 19(i) to 19 (v)
Species property
HO
CO2
Na atom MgCl2
Number of moles
2
B
D
0.5
Number of particles
A
3.011 x 1023
E
F
Mass
С
115 g
G
Shashi saw this table in her textbook and drawn all answers but she didn't know the exact formulae for each
calculations. So, she is confused that she is right or not. Let her know by choose the correct option.
i) What is the correct value of Avogadro's number?
(a) 6.022x 1023
(b) 6.022x 10
(d) 6.022 x 1026
ii) Value of D is
(a) 5 mole
(b) 0.5 mole
(c) 1.0 mole
(d) 0.1 mole
iii) Value of C is
(a) 44 g
(b) 22 g
(c) 4.4 g
(d) 2.2 g
iv) The number of particles of H2O (A) are
(a) 1.2044x 1024
(b) 1.2044x 10
(c) 12.044 x 10.30
(d) 12.044 x 1036
v) The number of particles of MgCl, (F) are
(a) 3011 X 1023 (b) 30.11 x 102 (c) 3.011 x 10
(d) 301.1 x 1023
and answer any four questions:
(c) 6.022x 10 - 23
26
23​

Answer 1

Answer:

36 جرام

-24

19. اقرأ ما يلي وأجب عن أي أربعة أسئلة من 19 (i) إلى 19 (v)

خاصية الأنواع

ح

ثاني أكسيد الكربون

نا ذرة MgCl2

عدد الشامات

2

ب

د

0.5

عدد الجسيمات

أ

3.011 × 1023

ه

F

كتلة

С

115 جرام

جي