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What mass in g does 7.98 moles of Kr have?
7.98 moles of Kr have 668,708 g.
How many moles of Kr are contained in 398 mg of Kr?
The mass of 1 mole of an element is its atomic weight on the periodic table in grams.1g = 1000mgThe mass of 1 mole of Kr = 83.80g KrConvert mg Kr to g Kr.398mg Kr x (1g/1000mg) = 0.398g KrConvert g Kr to mol Kr.0.398g Kr x (1mol Kr/83.80g Kr) = 4.75x10-3mol Kr
What volume will 0.405 g of krypton gas occupy at STP?
First we need the moles of krypton gas. Monoatomic gas.0.405 grams Kr (1 mole Kr/83.80 grams)= 0.004833 moles krypton gas======================Now the ideal gas equation.PV = nRT(1 atm)(X volume) = (0.004833 moles Kr)(0.08206 L*atm/mol*K)(298.15 K)= 0.118 Liters of krypton gas--------------------------------------
What mass of He contains the same number of atoms as 5.0 g Kr?
To find the mass of He containing the same number of atoms as 5.0 g Kr, we need to use the fact that atoms are indivisible entities. First, determine the number of atoms in 5.0 g Kr using the molar mass of Kr. Then, calculate the mass of He containing the same number of atoms by dividing the atomic mass of He by Avogadro's number and scaling it up to match the number of Kr atoms.
How can one determine the number of moles in a substance using the formula for finding moles?
To determine the number of moles in a substance, you can use the formula: moles mass / molar mass. Simply divide the mass of the substance by its molar mass to find the number of moles.
What mass in g does 7.98 moles of Kr have?
7.98 moles of Kr have 668,708 g.
What mass (in g) does 7.98 moles of Kr have?
7.98 moles of Kr have 668,708 g.
What mass in g does 3.99 moles of Kr have?
3,99 moles of Kr have 334,35 g.
What mass in g 3.99 moles of Kr have?
3,99 moles of Kr is equal to 334,354 g.
How many moles of Kr are contained in 398 mg of Kr?
The mass of 1 mole of an element is its atomic weight on the periodic table in grams.1g = 1000mgThe mass of 1 mole of Kr = 83.80g KrConvert mg Kr to g Kr.398mg Kr x (1g/1000mg) = 0.398g KrConvert g Kr to mol Kr.0.398g Kr x (1mol Kr/83.80g Kr) = 4.75x10-3mol Kr
How many moles are in 0.377 grams of Kr?
0.377 grams of Kr is equal to 0,0045 moles.
How many moles are contained in 1.23 grams of krypton?
To determine the number of moles in 1.23 grams of krypton, first find the molar mass of krypton (Kr), which is approximately 83.80 g/mol. Then, divide the given mass (1.23 g) by the molar mass of krypton to find the number of moles. In this case, 1.23 g / 83.80 g/mol ≈ 0.015 moles of krypton.
How do you convert 1.29 mol Kr to a number of atoms?
Just multiply the moles of Kr by Avogadro's number. Formal set up.1.29 moles Kr (6.022 X 1023/1 mole Kr)= 7.77 X 1023 atoms of krypton====================
What is the mass number of the atom Kr?
Krypton, Kr mass number: 83.8 atomic number: 36
How many moles are in 1.7 times 10 to the 25th power atoms of krypton?
1 mole Kr = 6.022 x 1023 atoms 1.7 x 1025 Kr atoms x (1 mole Kr)/(6.022 x 1023 Kr atoms) = 28 moles Kr (rounded to two sig figs)
How many Kr atoms are there in 2.51 moles of Kr?
The number of atoms is 15,11.10EX23.
How many mole of kr are contained in 398 mg of kr?
The mass of 1 mole of an element is its atomic weight on the Periodic Table in grams.1g = 1000mgThe mass of 1 mole of Kr = 83.80g KrConvert mg Kr to g Kr.398mg Kr x (1g/1000mg) = 0.398g KrConvert g Kr to mol Kr.0.398g Kr x (1mol Kr/83.80g Kr) = 4.75x10-3mol Kr
