CHEMISTRY HIGH SCHOOL

Given that the molar mass of naoh is 40.00 g/mol, what mass of naoh is needed to make 2.500 l of a 2.000 m naoh solution? use molarity equals startfraction moles of solute over liters of solution endfraction.. 0.1250 g 5.000 g 32.00 g 200.0 g

Answers

Answer 1

Answer:

The mass of Sodium hydroxide which is needed to make 2.500 L of a 2.000 M NaOH solution is 200 grams.

How do we calculate mass from moles?

Mass of any substance will be calculated by using their moles as:

n = W/M, where

W = required mass

M = molar mass

Given that, molarity of NaOH = 2M

Volume of NaOH solution = 2.5L

Moles of NaOH will be calculated by using the below equation as:

M = n/V

n = (2)(2.5) = 5 moles

Now we calculate the mass of NaOH of 5 moles as:

W = (5mol)(40g/mol) = 200g

Hence option (4) is correct.

To know more about moles, visit the below link:

brainly.com/question/15303663

Answer 2

Answer:

Answer:

Explanation:

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Answers

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The bond between F and Cl would be:A) nonpolar covalent
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Answers

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Please help1. What is the correct formula for magnesium cyanide?
A.MgCy
B.MnCN
C.Mg(CN)2
D.MgCN

2. What is the correct formula for dinitrogen pentoxide?
A.2NO5
B.N2O5
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3. What is the correct formula for titanium (III) perchlorate?
A.TiPc
B.Ti3(ClO)4
C.Ti3ClO4
D.Ti(ClO4)3

4. What is the correct formula for nickel (III) nitrate?
A.Ni(NO3)3
B.Ni3NO3
C.Ni3N
D.NiN3

5. What is the correct name for Co(C2H3O2)3
A.carbon oxide hydride
B.cobalt acetate
C.cobalt triacetate
D.cobalt (III) acetate

6. What is the correct name for NiSO4?
A.nickel (I) sulfide
B.nickel (II) sulfate
C.nickel sulfide tetraoxide
D.nickel sulfate

7. What is the correct name for N2F4?
A.dinitrogen fluoride (IIII)
B.nitrogen (II) fluoride
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8. What is the correct name for PCl5?
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9. Which type of bond (ionic, covalent or metallic) would Sr and Sc make?
A.ionic
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A.ionic
B.covalent
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B.covalent
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Answers

1. C : Mg(CN)2
2. B : N2O5
3. D : Ti(ClO4)3
4. A : Ni(NO3)3
5. D : Cobalt (III) Acetate
6. B : Nickel(II) sulfate
7. C : Dinitrogen Tetrafluoride
8. A : Phosphorus pentachloride
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10. A : Ionic
11. C : Metallic
12. B : Covalent

#1 : C. $Mg(CN)2$

#2: B. $N205$

#3: D. $Ti(CIO4)3$

#4: A. But you maked a little mistake. It's $Ni(NO3)2$

#5: D. Cobalt (III) Acetate.

#6: B.

#7: C.

# 8: A.

# 9: C.

# 10: A.

# 11: C.

# 12: B.

What is the difference in the beginning between primary succession and secondary succession?a. secondary succession has water
b. secondary succession has soil
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Answers

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