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How you Find the number of liters of hydrogen gas in 20 g of hydrogen at STP?
First find moles hydrogen gas. 20 grams H2 (1 mole H2/2.016 grams) = 9.921 moles H2 Now, the ideal gas equation. PV = nRT (1 atm)(volume L) = (9.921 moles H2)(0.08206 L*atm/mol*K)(298.15 K) Volume of hydrogen gas = 243 Liters ----------------------------------------------------
How would you find the answer to this question How many moles of HCl can be formed when moles of hydrogen gas react with chlorine?
For each mole of hydrogen gas (H2) reacting with chlorine gas (Cl2), you will get 2 moles of HCl. H2 + Cl2 = 2 HCl
How many moles are in 47g of chlorine gas?
4.005
How many grams of Mg must react with HCl in order to produce 80 mL of hydrogen gas at STP?
The key is to understand that Mg is limiting. Therefore, the final number of moles of H2 will equal the starting number of moles of Mg. Using gas law equations we can first find the moles of H2 and then find the moles of Mg. 1. PV = nRT --> n = PV/RT P = 760 mm Hg (pressure at STP) V = 80.0 mL (given) R = 62,400 mL-mm Hg/mol-K (constant) T = 273 K (temp. at STP) Now you have all the information you need to solve for the number of moles of Mg. Solve for moles and convert to grams.
How many moles of potassium bromide can be produced from the reaction of 2.92 moles of potassium with 1.78 moles of bromine gas?
First write a balanced chemical equation: 2K + Br2 ---> 2KBR Find the limiting reactant by using the moles of each element and determining which one gives you the smallest number of moles of potassium bromide. 2.92 mol K (2 mol KBr/2 mol K)= 2.92 mol KBr 1.78 mol Br2 (2 mol KBR/1 mol Br2)=3.56 mol KBr potassium is your limiting reactant so the max. number of moles of KBr that can be produced is 2.92 mol of KBr
What does n represent in the ideal gas law?
number of moles of gas particles
What does n represent in gas laws?
n is the number of moles.
If the number of moles of gas decrease what happens to the volume?
According to Avogadro's Law, the number of moles is proportional to the volume. Therefore, if the number of moles of gas decreases, the volume also decreases.
How to convert to moles not at standard temperature and pressure?
Use the ideal gas law, PV=nRT. P= pressure V= volume n= number of moles R= gas law constant T= temperature If you have P, V, R, T then you can solve for "n" to find the number of moles. There are a number of ways and variations that you can go about finding the number of moles, but all would involve the ideal gas law or a similar formula.
Is the number of gas particles the same as moles?
No
How many moles of helium gas (he) are present in 7.2 liters of helium gas at standard conditions?
The number of moles of helium is 0,32.
Which best represents the number of moles in exactly 84 grams of chlorine (Cl2) gas?
The number of moles in exactly 84 grams of chlorine (Cl2) gas 2,37.
What happens to the volume of a gas when the number of moles doubles ( all else held )?
When the number of moles of a gas doubles and all else is constant, then the volume also doubles.
The volume of a gas is directly proportional to the number of moles of that gas if?
the pressure and temperature are held constant. ideal gas law: Pressure * Volume = moles of gas * temperature * gas constant
How can you get the number of particles of gas?
By knowing the no of moles in a gas. Because , in any gas one mole of gas occupies Avagadro number of molecules.
What happens to the volume of a gas when the number of moles doubles (all else held constant)?
When the number of moles of a gas doubles and all else is constant, then the volume also doubles.
What happens to the volume of a gas when the number of moles doubles ( all else held constant )?
When the number of moles of a gas doubles and all else is constant, then the volume also doubles.
