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To find the grams of potassium in K2CrO7, first determine its molar mass. Potassium (K) has a molar mass of 39.10 g/mol, and K2CrO7 has two potassium atoms, so (39.10 g/mol) * 2 = 78.20 g/mol. Then, divide the mass of K2CrO7 by its molar mass to get the grams of potassium: (27.8 g) / (294.19 g/mol) ≈ 9.45 g of potassium.
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How many moles are in 12.3 grams of H2O?
Are you asking for moles of Calcium, moles of Oxygen, moles of Hydrogen, or moles of calcium hydroxide? The respective answers are .161991414, .323982829, .323982829 , and .161991414 moles. For an explanation, see the following question: How_many_moles_of_calcium_are_in_15.5_g_calcium_chloride
What mass of carbon dioxide will occupy 5.5L at 5 Celsius and 0.74 ATM?
gas
What is the average velocity of atoms in 1.50 mol of neon (a monatomic gas) at 278 K?
The average velocity of the atoms in a monatomic gas can be calculated using the formula ( v_{rms} = \sqrt{ \frac{3kT}{m} } ), where ( k ) is the Boltzmann constant, ( T ) is the temperature in Kelvin, and ( m ) is the molar mass of the gas. For neon, the molar mass is approximately 20.18 g/mol. Plugging in the values, we find that the average velocity is about 516 m/s.
When 2.0 liters (L) of an ideal gas at 20C and 1.0 atmosphere (ATM) of pressure is compressed to a volume of 1.0 liter (L) its temperature increases to 40C. Which equation gives the pressure of the ga?
5...The volume of 4.0 cubic meters of gas is kept under constant pressure. Its temperature is increased from a minus 73 degrees Celsius to 127 degrees Celsius. What is the new volume of the gas? 8 cubic meters...
How many grams are in a 6.94 mole sample of sodium hydroxide?
The molar mass of sodium hydroxide (NaOH) is approximately 40 grams per mole. Therefore, a 6.94 mole sample of sodium hydroxide would contain approximately 278 grams (6.94 moles x 40 grams/mole).
How much sugar does one cup of honey have?
About 278 grams.
If a rubber band holds 278 grams how far will it stretch?
There is not sufficient information to answer the question.
How many meter in 278 foot?
278 feet = 84.73 meters.
How many inches in 278 cm?
278 cm is equal to ~109.45 inches.
How many thousands are in 278000?
278
How many quarts are in 278 gallons?
1,112 quarts for 278 gallons.
How many quarts are there in 278 gallons?
69.5
How many airplanes does Mclane Co have?
278
How many roaller coasters are in Spain?
278
how many 15s go into 278?
18.53
How many feet are in 278 centimeters?
There are 30.48 centimetres in one foot. Therefore, rounded to two decimal places, 278 centimetres is equal to 278/30.48 = 9.12 feet.
