a) 2 mole MgO
mMg = 24g
mO = 16g
(24+16)*2=80 g
b) 0.5 mola HNO3
mH= 1g
mN=14g
mO= 16g
16*3+1+14=63g
c) 10 dm3 O2
m O2 = 32G
22,4 dm3 - 32g
10dm3 - x
x= 14,29g
d) 3 cząsteczki H2
mH2 = 2g
3*2g=6 g
a) M MgO=24 g/mol+16 g/mol=40 g/mol
40 g---1 mol
x g---2 mol
x=80 g
b) M HNO3=1 g/mol+14 g/mol+3*16 g/mol=63 g/mol
63 g---1 mol
xg---0,5 mol
x=31,5 g
c) M O2=2*16 g/mol=32 g/mol
32 g---22,4 dm3
x g---10 dm3
x=14,29 g
d) M H2=2*1 g/mol=2 g/mol
2 g---1 cząsteczka
x g---3 cząsteczki
x=6 g
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a) 2 mole MgO
mMg = 24g
mO = 16g
(24+16)*2=80 g
b) 0.5 mola HNO3
mH= 1g
mN=14g
mO= 16g
16*3+1+14=63g
c) 10 dm3 O2
m O2 = 32G
22,4 dm3 - 32g
10dm3 - x
x= 14,29g
d) 3 cząsteczki H2
mH2 = 2g
3*2g=6 g
a) M MgO=24 g/mol+16 g/mol=40 g/mol
40 g---1 mol
x g---2 mol
x=80 g
b) M HNO3=1 g/mol+14 g/mol+3*16 g/mol=63 g/mol
63 g---1 mol
xg---0,5 mol
x=31,5 g
c) M O2=2*16 g/mol=32 g/mol
32 g---22,4 dm3
x g---10 dm3
x=14,29 g
d) M H2=2*1 g/mol=2 g/mol
2 g---1 cząsteczka
x g---3 cząsteczki
x=6 g