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Q: How many k atoms are in 78.2 grams of k?
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How do you find the mass of a sample of 1.72 x 1023 atoms of potassium?

1 mole K atoms = 39.0983g K (atomic weight in grams)1 mole K atoms = 6.022 x 1023 atoms K (Avogadro's number)Convert known atoms to moles.1.72 x 1023 atoms K x (1mol K/6.022 x 1023 atoms K) = 0.286mol KConvert moles to mass in grams.0.286mol K x (39.0983g K/1mol K) = 11.2g K


How many grams of potassium are there in 7.20 mol of potassium atoms?

7.20 moles K x 39.1 g/mole = 281.52 g K = 282 g K (to 3 significant figures)


How many atoms are in 0.0671 mol K?

1 mole K = 6.022 x 1023 atoms KConvert known moles to atoms.0.0671mol K X (6.022 x 1023 atoms K/1mol K) = 4.04 x 1022 atoms K


How many atoms are in 3.50 moles of calcium?

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


How many grams in a k cup?

approximately 1.5 grams.


How many atoms are in 0.0602 mol K?

0.0602 mole K x 6.02x10^23 atoms/mole = 3.62x10^22 atoms


How many potassium atoms are in 0.0384 mole K?

0.0384 moles K x 6.02x10^23 atoms/mole = 2.31x10^22 atoms


How many atoms are in 0.3 moles of potassium?

0.3 moles K (6.022 X 10^23/1mol K) = 1.8 X 10^23 atoms of K


How many grams of chlorine can you combine with thirty nine grams of potassium?

Balanced equation. 2K + Cl2 >> 2KCl 39 grams K (1mol K/39.10g )(1mol Cl/2mol K )(35.45g/1 mol Cl ) = 17.7 grams


How many atoms in 4KOH?

1 fomula unit of KOH has 3 atoms: 1 potassium (K), 1 oxygen (O), and 1 hydrogen (H).


How many atoms in each of the elements K2CrO4?

There are 2 atoms of K, 1 of C, and 4 of O.


How many grams in5kg?

5,000 k = kilo = thousand