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There are 6.022 × 1023 atoms of potassium in every mole of potassium. Since one mole of KOH contains one mole of K, the answer is 6.022×1023 atoms of K.
Therefore, 3.5 moles * 6.022E23 atoms/1 mole= 2.107E24
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How many moles of carbon monoxide are in 350 g sample?
350 g sample of CO contain 12,49 moles.
How many grams of NaOH are in 350 mL of a 5.7 M NaOH solution?
Molarity = moles of solute/Liters of solution. ( 350 ml = 0.350 Liters ) 5.7 M NaOH = moles NaOH/0.350 Liters = 1.995 moles NaOH (39.998 grams/1 mole NaOH) = 78 grams NaOH needed ------------------------------------
What is the mass in atoms of 350 mol of bromine?
1 mol of bromine has 79.904g. 79.904g/mol x 350mol =
How many square acres are in 350 square miles?
Answer: 350 mi² = 224,000 acres
How many meters is 350 millimeters?
1000 millimetres = 1 metre so 350 mm = 350/1000 = 0.35 metres. Simple!
How many moles of carbon monoxide are in 350 g sample?
350 g sample of CO contain 12,49 moles.
What is the mass number for a nitrogen atom that contains 4 neutrons?
Divide 4.2x1024 by 6.022x1023 to get the number of moles.The second number is Avogadro's constant, it represents the number of atoms in one mole of any substance.So if you have X number of atoms given, and you are asked to find how many moles that is equal to just divide by Avagadro's constant to get the answer.For this: it is 6.974 if you forget about sigdigs.Rounded to the real number of sgnificant digits the answer is 7.0 mol of N-atoms or 3.5 mol of N2molecules.
How many micrograms is 350 picomoles?
To convert grams to moles you need the molecular mass. Firstly you need to convert 350 picomoles to micromoles. 350/1,000,000 is 0.000350 micromoles. Then you multiply by the molecular weight of the compound.
How many grams of NaOH are in 350 mL of a 5.7 M NaOH solution?
Molarity = moles of solute/Liters of solution. ( 350 ml = 0.350 Liters ) 5.7 M NaOH = moles NaOH/0.350 Liters = 1.995 moles NaOH (39.998 grams/1 mole NaOH) = 78 grams NaOH needed ------------------------------------
How many moles make up 350g of sodium?
The chemical symbol for sodium is Na. Amount of Na = mass of sample/molecular mass = 350/23.0 = 15.2mol
How many grams of Na2SO4 are required to make 350 ml of 0.5M?
Molar mass Na2SO4 = 142 g/mole0.5 M = 0.5 moles/L = 0.5 moles x 142 g/mole = 71 g/L 350 ml = 0.350 L, therefore 71 g/L x 0.35 L = 24.85 g If using proper significant figures, it would be 20 g
A gas consists of a mixture of neon and argon The rms speed of the neon atoms is 350 What is the rms speed of the argon atoms?
250 m/s
How many hundredths is 3.5?
350 of them.
How many cc are in 350 milliliter?
350 ml = 350 cc
How many pennies for 350 dollars?
35000
How many 7 in 350?
350 ÷ 7 = 50
How many 50s are in 350?
350 ÷ 50 = 7
