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enyata [817]
3 years ago
13

How many coppers of each atom in the products

Chemistry
1 answer:
yarga [219]3 years ago
6 0

Answer:

Explanation:

moler mass of Cu is 63.546 g/mol. Since 63.546 g of copper has 6.022 x 10 power(23) atoms (Avogadro's number). = 9.5 x 10(power)21 atoms of copper.

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heres your answer mate...

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3 years ago
How many grams of Kr are in a 9.59 L cylinder at 46.0 'C and 4.62 atm?<br> mass:
Sladkaya [172]

Answer:

Mass = 141.6 g

Explanation:

Given data:

Mass of Kr in gram =  ?

Volume in L = 9.59 L

Temperature = 46.0°C

Pressure = 4.62 atm

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

Now we will convert the temperature.

46.0+273 = 319 K

4.62 atm × 9.59 L = n× 0.0821 atm.L/ mol.K  ×319 K

44.3 atm.L = n×26.19 atm.L/ mol

n = 44.3 atm.L / 26.19 atm.L/ mol

n = 1.69 mol

Mass in gram:

Mass = number of moles × molar mass

Mass = 1.69 mol × 83.79 g/mol

Mass = 141.6 g

8 0
3 years ago
A balloon that has a volume of 9.45L of helium is released at the ground where the pressure is 760mmHg. What is the volume of th
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Answer:

What is the volume of the balloon when it rises in the atmosphere to a place where pressure is 640mmHg

4 0
2 years ago
Which gas would diffuse rapidly at the same temperature and pressure UF6 or CL2
svetoff [14.1K]

Answer:

UF6

Explanation:

6 0
3 years ago
How many significant figures does .150, 20.20, and 25.00 have?
viva [34]
.150 = 3
20.20 = 4
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If a 0 does not have a number or a period after it, it is not significant.
If the 0 is behind the decimal point, it is always significant.
6 0
3 years ago
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