3 years ago

How many moles of ammonium ions are in 1.3 grams of ammonium carbonate?

1 answer:

3 0

Molecular weight of (NH4)2 CO3 = 96 gm. 96 gm (NH4)2CO3 = 1 mol of (NH4)2CO3 = 2 moles of NH4. Therefore 1.3 gm of (NH4)2CO3 = 1.3x2/ 96 = 0.027 moles.

You might be interested in

Which statement is true? Energy cannot be created or destroyed. Energy can be destroyed but not created. Energy can be created b

vaieri [72.5K]

Energy can not be created and cannot be destroyed
<span />

6 0

3 years ago

Read 2 more answers

When the pressure that a gas exerts on a sealed container changes from 1100 bar to 75.5 bar, the temperature changes from k to 2

Serjik [45]

Gay-Lussac's law gives the relationship between pressure and temperature of gas. For a fixed amount of gas, pressure is directly proportional to temperature at constant volume.
P/T = k
where P - pressure , T - temperature and k - constant
$\frac{P1}{T1} = \frac{P2}{T2}$
parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation
substituting the values in the equation
$\frac{1100 bar}{T} = \frac{75.5 bar}{298 K}$
T = 4342 K
initial temperature was 4342 K

7 0

3 years ago

AN atoms nucleus contains it's protons and electrons true or false

lesantik [10]

True, an atoms nucleus has both protons and electrons.

4 0

2 years ago

How many elements have been discovered?<br> A. 110 <br> B. less than 110 <br> C. more than 110

riadik2000 [5.3K]

There are 115 known elements as of today (Feb. 13, 2016)

so, 'C' is the correct answer

8 0

2 years ago

Read 2 more answers

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the

Aleks04 [339]

Answer:

A = True

B = False

C = True.

I think this is the answer

8 0

2 years ago