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The Atomic Mass of potassium is 39.10 g/mol.
1.90 mol K * (39.10 g K / 1 mol K) = 74.3 g K
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How many grams are in 0.180 mole of K?
To find the number of grams in 0.180 moles of potassium (K), you would first need to determine the molar mass of potassium, which is approximately 39.10 g/mol. Then, you can use the formula: grams = moles x molar mass. Therefore, 0.180 moles of K would be equal to approximately 7.02 grams (0.180 mol x 39.10 g/mol).
How many moles are in 3.3 moles of K2S?
3.3 moles of K2S 3.3 moles of S-2 6.6 moles of K+1
How many moles are there in 5 grams of potassium sulfate?
To find the number of moles in 5 grams of potassium sulfate (K2SO4), first calculate the molar mass of K2SO4 by adding the atomic masses of potassium (K), sulfur (S), and four oxygen (O) atoms. Then, divide the given mass (5 grams) by the molar mass of K2SO4 to get the number of moles.
How many moles are in 550 grams of KCl?
To calculate the number of moles in 550 grams of KCl, first find the molar mass of KCl. Potassium (K) has a molar mass of 39.10 g/mol and chlorine (Cl) has a molar mass of 35.45 g/mol. Add these together to get the molar mass of KCl, which is 74.55 g/mol. Divide the given mass (550 grams) by the molar mass (74.55 g/mol) to find the number of moles. In this case, there are approximately 7.39 moles of KCl in 550 grams.
How many protons are in 4.78g of K?
To find the number of protons in 4.78g of potassium (K), first calculate the number of moles of K using its molar mass (39.10 g/mol). Then, since potassium has 19 protons in each atom, multiply the number of moles by Avogadro's number (6.022 x 10^23 mol^-1) to get the number of protons.
How many grams are in 0.180 mole of K?
To find the number of grams in 0.180 moles of potassium (K), you would first need to determine the molar mass of potassium, which is approximately 39.10 g/mol. Then, you can use the formula: grams = moles x molar mass. Therefore, 0.180 moles of K would be equal to approximately 7.02 grams (0.180 mol x 39.10 g/mol).
Which equivalence factor should you use to convert from 38.2 grams of K to moles of K?
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How many moles in 284 grams of potassium?
Potassium has atomic number 39.1.Amount of K in 284g sample = 284/39.1 = 7.26molThere are 7.26 moles of potassium in a 284g sample.
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 moles are in 3.3 moles of K2S?
3.3 moles of K2S 3.3 moles of S-2 6.6 moles of K+1
How many grams are there in 3.3 moles of potassium sulfide?
The atomic mass of Potassium is 39 and that of Sulfur 32. The formula for Potassium Sulfide is K2S therefore the molecular weight of Potassium Sulfide is (39 * 2) + 32 = 110. Therefore one mole of Potassium Sulfide weighs 110 grams. Therefore 3.3 moles of Potassium Sulfide weigh 110 * 3.3 = 363 grams.
How many moles are there in 5 grams of potassium sulfate?
To find the number of moles in 5 grams of potassium sulfate (K2SO4), first calculate the molar mass of K2SO4 by adding the atomic masses of potassium (K), sulfur (S), and four oxygen (O) atoms. Then, divide the given mass (5 grams) by the molar mass of K2SO4 to get the number of moles.
How many moles of K2SO4 are in 15.0 grams of K2SO4?
To find the number of moles of K2SO4 in 15.0 grams, first calculate the molar mass of K2SO4 (K: 39.10 g/mol, S: 32.07 g/mol, O: 16.00 g/mol). Molar mass of K2SO4 = 2(39.10) + 32.07 + 4(16.00) = 174.26 g/mol Now, divide the given mass by the molar mass to find the number of moles: 15.0 g / 174.26 g/mol = 0.086 moles of K2SO4
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
What mass of potassium ions is present 25.0 mL of 0.50 M K2SO4?
The Calculation25ml = 0.025dm30.5M = 0.5 moles per dm30.5 mol dm-3 x 0.025dm3 = 0.0125 moles of K2SO4Which equals 0.01125 moles of KThis in grams is 0.01125 x 39.098 (the molar mass of potassium) = 0.4398525g
How many k atoms are in 78.2 grams of k?
To find the number of potassium (K) atoms in 78.2 grams, first determine the molar mass of potassium, which is approximately 39.1 g/mol. Dividing 78.2 grams by the molar mass gives about 2.00 moles of potassium. Since one mole contains approximately (6.022 \times 10^{23}) atoms (Avogadro's number), multiplying 2.00 moles by (6.022 \times 10^{23}) results in approximately (1.20 \times 10^{24}) potassium atoms.
How many moles are in 550 grams of KCl?
To calculate the number of moles in 550 grams of KCl, first find the molar mass of KCl. Potassium (K) has a molar mass of 39.10 g/mol and chlorine (Cl) has a molar mass of 35.45 g/mol. Add these together to get the molar mass of KCl, which is 74.55 g/mol. Divide the given mass (550 grams) by the molar mass (74.55 g/mol) to find the number of moles. In this case, there are approximately 7.39 moles of KCl in 550 grams.
