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bazaltina [42]
3 years ago
10

The element Ag has how many protons? 47 106 87 61 108

Chemistry
2 answers:
maw [93]3 years ago
7 0

Answer:

47

Explanation:

silver/ atomic number

natka813 [3]3 years ago
6 0
Answer: 47!!!!!!!!!!!!!!!!!!!!!
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A 100.0-mL flask contains 0.193 g of a volatile oxide of nitrogen. The pressure in the flask is 760 mmHg at 17°C. Is the gas NO,
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Answer:

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Explanation:

Considering,  

n=\frac{m}{M}

Using ideal gas equation as:

PV=\frac{m}{M}RT

where,  

P is the pressure  = 760 mmHg

V is the volume  = 100.0 mL = 0.1 L

m is the mass of the gas  = 0.193 g

M is the molar mass of the gas  = ?

Temperature = 17 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T = (17 + 273.15) K = 290.15 K

R is Gas constant having value = 62.36367 L. mmHg/K. mol

Applying the values as:-

760\times 0.1=\frac{0.193}{M}\times 62.36367\times 290.15

M = 45.95 g/mol

This mass corresponds to NO_2. Hence, the gas must be NO_2.

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