1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ELEN [110]
3 years ago
12

How do you do number 2 becUse i honestly don't get it

Chemistry
1 answer:
grandymaker [24]3 years ago
8 0
53.5 g MgCl2 /95.21 g/mol = 0.5619 Moles MgCl2. Since the ratio is 3MgCl : 2Na3PO4 you multiply 0.5619 x 2/3 (since you're solving for NaPO, the 2 goes on top) which shows we have .3746 Moles of NaPO. Multiply times it's molar mass so 0.3746x 163.94g/mol= 61.4136 grams NaPO. I believe.
You might be interested in
The temperature of nitrogen is unknown when the gas occupies 100.0 mL at 99.10 kPa. If the gas is known to occupy 74.2 mL at 133
laiz [17]

Answer:

The unknown temperature is 304.7K

Explanation:

V1 = 100mL = 100*10^-3L

P1 = 99.10kPa = 99.10*10³Pa

V2 = 74.2mL = 74.2*10^-3L

P2 = 133.7kPa = 133.7*10³Pa

T2 = 305K

T1 = ?

From combined gas equation,

(P1 * V1) / T1 = (P2 * V2) / T2

Solving for T1,

T1 = (P1 * V1 * T2) / (P2 * V2)

T1 = (99.10*10³ * 100*10^-3 * 305) / (133.7*10³ * 74.2*10^-3)

T1 = 3022550 / 9920.54

T1 = 304.67K

T1 = 304.7K

3 0
3 years ago
How do you solve (1 x 1025) =3 x 10
Mrrafil [7]

Hey There!!~

Your best answer choice is 10280 or 10,280.

Because, 1 x 1025 = 1025 + 3 = 1028 x 10 = 10280 or 10,280.

Hope This Helps....!!

4 0
3 years ago
Read 2 more answers
Give an example of a diatomic molecule found in Earth's atmosphere.
ANTONII [103]

Answer:

oxygen is an example of a diatomic molecule found in earth's atmosphere!

Explanation:

8 0
3 years ago
4. How many grams are in 54 moles H,O?
Marrrta [24]

Answer:

Explanation:1.8

×

10

24

 water molecules.

Explanation:

There are  

6.022

×

10

23

molecules in a mole.

There are  

18.01528

grams of water per mole of water.

These can be figured out using the concept of moles and molecular weight. I have attached a video that provides a good explanation.

Explanation of moles and molecular weight

Now you have all the information needed to solve the problem.

You start out with 54 grams of water. You want to convert that into molecules, but how can you do that? You can't go directly from grams to molecules because there is no easy unit conversion. However, you can go from grams to moles using

18.01528

grams of water per mole of water.

From there, you can go from moles to molecules using  

6.022

×

10

23

molecules in a mole.

A T chart is useful for this kind of problem.

54 g H

2

O

×

1 mol  H

2

O

18.0152 g H

2

O

×

6.022

×

10

23

 

molecules

1 mol H

2

O

54

g H

2

O

×

1 mol  H

2

O

18.0152

g H

2

O

×

6.022

×

10

23

 

molecules

1 mol H

2

O

Notice when you apply this T chart, the units cancel out, leaving molecules in the final answer, which is the correct units.

Now actually multiply everything out

54

×

6.022

×

10

23

18.0152

=

1.805

×

10

24

You are left with  

1.8

×

10

24

water molecules (rounded to two sig figs).

8 0
3 years ago
Read 2 more answers
Based on molecular orbital theory, the only molecule in the list below that has unpaired electrons is __________.a) C2b) N2c) F2
Len [333]

Answer:

B.

Explanation:

ive done this before trust

4 0
2 years ago
Other questions:
  • Using the equation PCl5(g)=PCl3(g)+Cl2(g), if PCl5 is removed, what will the equilibrium shift?
    9·1 answer
  • Which of the following has zero acceleration?
    5·2 answers
  • The product of the Calvin cycle is a triose-phosphate sugar that is either exported from the chloroplast or used to regenerate R
    15·1 answer
  • A certain material has a density of 0.2 g/ml is this material good for building a bridge or for making cushions for a couch
    11·1 answer
  • How many oxygen atoms in 1 mole of CO2
    9·2 answers
  • Which of the following is an example of velocity
    6·1 answer
  • An object is placed at 0 on a number line. It moves 3 units to the right, then 4 units to the left, and then 6 units to the righ
    14·2 answers
  • What will happen if atom hit earth with speed of light?​
    11·2 answers
  • What Is the answers?
    10·2 answers
  • At room temperature (20°C) and pressure, the density of air is 1.189 g/L. An object will float in air if its density is less tha
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!