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ExtremeBDS [4]
4 years ago
12

What is the volume of 8.50 moles of hydrogen gas?

Chemistry
1 answer:
Cerrena [4.2K]4 years ago
3 0
Okay! 
8.50molH, represents 8.50 moles of Hydrogen gas!

To convert from moles to volume multiply it by the ratio of L/molH
mol of anything in a conversion problem is always 1 unless you are going to an unknown! Try to memorize this, but the number you always put in for the # of liters in a conversion problem is 22.4L (L is a measure of volume) 

8.50molH * (22.4 L/ 1 molH)

190.L of Hydrogen Gas. 

Hope that helped!
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5 0
3 years ago
G determine the concentration of an hbr solution if a 45.00 ml aliquot of the solution yields 0.6485 g agbr when added to a solu
Sunny_sXe [5.5K]

The molecular weight of silver bromide (AgBr) is 187.77 g/mole. The presence of the ions in solution can be shown as- AgBr (insoluble) ⇄Ag^{+} + Br^{-1}.

45.00 mL of the aliquot contains 0.6485 g of AgBr. Thus 1000 mL of the aliquot contains \frac{0.6485}{45}×1000 = 14.411 gm-mole. Thus the solubility product K_{sp}of AgBr = [Ag^{+}]×Br^{-}.

Or, 5.0×10^{-13} = S^{2} (the given value of solubility product of AgBr is 5.0×10^{-13} and the charge of the both ions are same).

Thus S = (5.00×10^{-13})^{1/2} = 7.071×10^{-7} g/mL.

Thus the concentration of Br^{-1} or HBr is 7.071×10^{-7} g/mL.

4 0
4 years ago
A mothball, composed of naphthalene (C10H8), has a mass of 1.52g. How many naphthalene molecules does it contain?
Anna35 [415]
The molar mass of naphthalene is calculated as follows,
                          10 x (12.01 g/ mol) + 8 x (1.01 g/mol) = 128.12 g/mol
Divide the given mass by the molar mass to determine the number of moles of naphthalene present in the ball.
                                  n =  1.52 g / 128.12 g/mol  = 0.01186 mole
Multiply the number of moles to number of moles per mole.
                                 (0.01186 mol) x (6.022 x10^23 molecules / mole) = 7.14 x 10^21 molecules

8 0
3 years ago
What is NaHCO3 = Na2CO3 + H2O + CO2 as a balanced equation?
ollegr [7]
Balanced equation = 2 NaHCO3 —-> Na2CO3 + H2O + CO2

Can you mark me as brainliest?
8 0
3 years ago
What percent of AgNO3 is silver?
Inga [223]

Answer:

63.499%

Explanation:

8 0
3 years ago
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