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Feliz [49]
3 years ago
6

What is the mass of 4.98 x 10^24 atoms of Zn?

Chemistry
1 answer:
vodomira [7]3 years ago
8 0

Answer:he

H

Explanation:

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For which type of titration will the ph be basic at the equivalence point?
Pavel [41]

Answer:

weak acid

Explanation:

3 0
3 years ago
Do anyone know how to do question B
Over [174]

Answer:

a) IUPAC Names:

                   1) (<em>trans</em>)-but-2-ene

                   2) (<em>cis</em>)-but-2-ene

                   3) but-1-ene

b) Balance Equation:

                       C₄H₁₀O + H₃PO₄   →   C₄H₈ + H₂O + H₃PO₄

As H₃PO₄ is catalyst and remains unchanged so we can also write as,

                                    C₄H₁₀O   →   C₄H₈ + H₂O

c) Rule:

           When more than one alkene products are possible then the one thermodynamically stable is favored. Thermodynamically more substituted alkenes are stable. Furthermore, trans alkenes are more stable than cis alkenes. Hence, in our case the major product is trans alkene followed by cis. The minor alkene is the 1-butene as it is less substituted.

d) C is not Geometrical Isomer:

        For any alkene to demonstrate geometrical isomerism it is important that there must be two different geminal substituents attached to both carbon atoms. In 1-butene one carbon has same geminal substituents (i.e H atoms). Hence, it can not give geometrical isomers.

7 0
3 years ago
The quantities 1 mol and 22.4 L can be used in conversion factors that change moles to volume and volume to moles at STP.
Luden [163]
True. Bc 1 mol and 22.4 L=23.4
6 0
3 years ago
Read 2 more answers
How much heat is required to convert 2.55g of water at 28.0 degree celsius to steam 100 degree celsius
Crazy boy [7]
767.448 Joules of heat is required.
You use the equation Q=MCdeltaT
Make sure you convery celsius to Kelvin
Specific heat of water is 4.18
So it will be Q=2.55(4.18)(72)
Q=767.448
4 0
3 years ago
What volume of water, in mL, is needed to dissolve 1.3×103 mg of carbon dioxide gas when the partial pressure of carbon dioxide
ivolga24 [154]

Answer:

V = 0.2714 mL

Explanation:

Henry's Law:

  • Pi = Ci*Kh

∴ Kh CO2 = 0.034 M/atm ....The Henry's constant

∴ Partial pressure: P CO2 = 3.7 atm

⇒ <em>C</em> CO2 = P CO2 / Kh

⇒ <em>C</em> CO2 = 3.7 atm / 0.034 M/atm = 108.823 M (mol/L)

∴ molar mass CO2 = 44.01 g/mol

⇒ mol CO2 = (1.3 E3 mg)(g/1000 mg)(mol/44.01 g) = 0.03 mol CO2

volumen solution:

⇒ V sln = (0.03 mol)(L/108.823 mol) = 2.714 E-4 L

⇒ V sln = 0.2714 mL

4 0
4 years ago
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