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7nadin3 [17]
3 years ago
15

I need help on 1 and 2 please will give brainliest

Chemistry
1 answer:
MatroZZZ [7]3 years ago
4 0
1) Amount: 8.26 milliliters (ml) of mercury volume
Equals: 111.79 grams (g) in mercury mass
Calculate grams of mercury per 8.26 milliliters unit.

B) volume = mass / density
volume = 120 g / 13.6 = 8.82 ml

2) (1.2 L) x (1000 mL/L) x (0.74 g/mL) = 888 g


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in example 5.11 of the text the molar volume of n2 at STP is given as 22.42 L/mol how is this number calculatd how does the mola
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Answer:

V = 22.42 L/mol

N₂ and H₂ Same molar Volume at STP

Explanation:

Data Given:

molar volume of N₂ at STP = 22.42 L/mol

Calculation of molar volume of N₂ at STP  = ?

Comparison of molar volume of H₂ and N₂ = ?

Solution:

Molar Volume of Gas:

The volume occupied by 1 mole of any gas at standard temperature and pressure and it is always equal to 22.42 L/ mol

Molar volume can be calculated by using ideal gas formula  

                               PV = nRT

Rearrange the equation for Volume

                            V = nRT / P . . . . . . . . . (1)

where

P = pressure

V = Volume

T= Temperature

n = Number of moles

R = ideal gas constant

Standard values

P = 1 atm

T = 273 K

n = 1 mole

R = 0.08206 L.atm / mol. K

Now put the value in formula (1) to calculate volume for 1 mole of N₂

                   V = 1 x 273 K x 0.08206 L.atm / mol. K / 1 atm

                   V = 22.42 L/mol

Now if we look for the above calculation it will be the same for H₂ or any gas. so if we compare the molar volume of 1 mole N₂ and H₂ it will be the same at STP.

6 0
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100 POINTS!!!
Paul [167]

what do u need help with u pls respond quickly

6 0
2 years ago
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Carbon dioxide and ____ are outputs of cellular respiration
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Answer:

Explanation:

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3000=3.0*10^3

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