29.05.2017 Views

BÀI TẬP TRẮC NGHIỆM HÓA ĐẠI CƯƠNG VÀ VÔ CƠ CẨM NANG DÙNG LUYỆN THI THPTQG CHẤT LƯỢNG CAO (COLOR BOOK)

LINK DOCS.GOOGLE: https://drive.google.com/file/d/0BwixbaqeX0X2eVBfWHJtVUd2MWM/view?usp=sharing

LINK DOCS.GOOGLE:
https://drive.google.com/file/d/0BwixbaqeX0X2eVBfWHJtVUd2MWM/view?usp=sharing

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

3<br />

Chú ý<br />

VD3:<br />

A<br />

2<br />

K = 39; Rb = 85,5; Cs = 133;<br />

Be = 9; Mg = 24; Ca = 40;<br />

Sr = 87; Ba = 137.<br />

2O M(OH) 2 + H 2<br />

5,6 m 10<br />

M<br />

n n 0,25 (mol) M 40 M lµ Ca<br />

M H2<br />

M<br />

22, 4 n 0,25<br />

M<br />

VD4:<br />

2<br />

2O Na + ½H 2<br />

Ba + 2H 2 O Ba(OH) 2 + H 2<br />

(b) Có hai cách làm<br />

C1:<br />

C2:<br />

VD5:<br />

mBa<br />

1 x 3<br />

n n n x x<br />

H2<br />

Na Ba<br />

2 2 2<br />

6,72 3<br />

n 0,3 (mol) x 0,3 x 0,2 (mol)<br />

H 2<br />

22, 4 2<br />

27, 4 (gam)<br />

n 2n 0,6 (mol)<br />

OH<br />

H 2<br />

A 2<br />

MCl 2 + H 2<br />

0,672 m 1,67<br />

M<br />

n n 0,03 (mol) M 55,67<br />

M H2<br />

M<br />

22, 4 n 0,03<br />

M<br />

2<br />

301

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!