If 5.0 liters of hydrogen react with excess oxygen, what mass of water would be produced?

our equation specifies that

32

⋅

g

of dioxygen and

4

⋅

g

of dihydrogen give

36

⋅

g

of water upon reaction, so

Explanation:

2

H

2

(

g

)

+

O

2

(

g

)

→

2

H

2

O

(

g

)

We started with

5.0

⋅

g

32.00

⋅

g

⋅

m

o

l

−

1

=

0.156

⋅

m

o

l

dioxygen

.

Given excess dihydrogen, this molar quantity thus gives

2

×

0.156

⋅

m

o

l

water.

And thus,

2

×

0.156

⋅

m

o

l

×

18.01

⋅

g

⋅

m

o

l

−

1

≅

6

⋅

g

water are evolved. Is this reaction exothermic or endothermic?

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.