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kodGreya [7K]
3 years ago
15

*GIVING BRAINLIEST* NEED ANSWER ASAPPP

Chemistry
1 answer:
poizon [28]3 years ago
8 0

Same Question here answered by me with explanation check the link below for your answer.

brainly.com/question/24944271?

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belka [17]
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5 0
3 years ago
What is the threshold frequency ν0 of cesium?
Montano1993 [528]
 I think this is what you're after:

 Cs(g) → Cs^+ + e⁻ ΔHIP = 375.7 kJ mol^-1 [1] 


Convert to J and divide by the Avogadro Const to give E in J per photon 


E = 375700/6.022×10^23 = 6.239×10^-19 J 


Plank relationship E = h×ν E in J ν = frequency (Hz s-1) 


Planck constant h = 6.626×10^-34 J s 


6.239×10^-19 = (6.626×10^-34)ν 


ν = 9.42×10^14 s^-1 (Hz) 


IP are usually given in ev Cs 3.894 eV 


<span>E = 3.894×1.60×10^-19 = 6.230×10^-19 J per photon </span>

4 0
3 years ago
Use the balanced equation given below to solve the following problem; Calculate the volume in liters of CO produced by the react
Elan Coil [88]

Answer: 40.3 L

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}

\text{Moles of} Sb_2O_3=\frac{175g}{291.5g/mol}=0.600moles

Sb_2O_3+3C\rightarrow 2Sb+3CO  

According to stoichiometry :

1 moles of Sb_2O_3 produces = 3 moles of CO

Thus 0.600 moles of Sb_2O_3 will produce=\frac{3}{1}\times 0.600=1.80moles  of CO

Volume of CO=moles\times {\text {Molar volume}}=1.80moles\times 22.4L/mol=40.3L

Thus 40.3 L of CO is produced.

6 0
3 years ago
A student tests the pitch of different-sized rubber bands by stretching them around a box and then plucking them. What pitch doe
Nostrana [21]

Answer:

your answer will be C

Explanation:

remember low souunds carry sound waves farther than high pithed sounds.

4 0
3 years ago
Water vapor condenses into a glass of water. The water is then placed in a freezer and changes into ice. What remains consistent
PolarNik [594]
Chemical properties
8 0
3 years ago
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