how many atoms does calcium have

Calcium nitrate has the molecular formula Ca(NO3)2 and a molecular weight of 164.08 grams per mole. The most abundant isotope, 40 Ca, as well as the rare 46 Ca, are theoretically unstable on energetic grounds, but their decay has not been observed. Ask Question + 100. 6.022 X 10²³. How many moles of calcium atoms do you have if you have 7.92 × 10²¹ atoms of calcium. Trending Questions. Definition: 1 gram atom of any element means mass of 1 mole of atoms of the element 1mol of Ca atoms has mass = 40.0g 1 gram atom of Ca has mass = 40.0g 5gram atoms of Ca has mass = 5 * 40.0 = 200.0g. The atomic number of calcium is 20. Find an answer to your question how many atoms are in 115 grams of calcium kieara4life kieara4life 09/12/2016 Mathematics High School How many atoms are in 115 grams of calcium See answer kieara4life is waiting for your help. Join. 1) Find your moles. Avogadro number . Join Yahoo Answers and get 100 points today. has a mass of 80 grams (atomic mass) you can find how many atoms have a mass of 15 grams (I hope you know how to do it). Each 40.078 grams of calcium has a mole of atoms. Add your answer and earn points. We know that 113 mg is 0.113. Calcium has atomic mass 40. The compound calcium nitrate consists of a total of nine atoms, including one atom of calcium, two of nitrogen and six of oxygen. 1.204 x 10²³ atoms of Au. Calcium (20 Ca) has 26 known isotopes, ranging from 35 Ca to 60 Ca. 0.113 g / 40.08 g/mole = 0.00282 moles of calcium. ... A prospector finds 39.39 g of pure gold. emilyro emilyro Trending Questions. an equal number of atoms. 0 0. Calcium's atomic mass is 40.08 g/mole, which rounds to 40 g/mole. Compared with a mole of neon, a mole of calcium contains. We also know that 1 mole = 6.022 x 10^23 atoms. Still have questions? How many atoms of gold does he have? Explanation: The Periodic Table tells us that #6.022xx10^23# individual calcium atoms have a mass of #40.1*g# . A gram mole (Calcium is daitomic) is 80 grams. (a) How many Ca atoms are contained in each unit cell? Calcium weighs 40.08 grams per mole. A calcium atom has 20 protons, 20 electrons and 20 neutrons. Problem 21 Which of the following has more atoms: 1.10 g of hydrogen atoms or $14.7 \mathrm{g}$ of chromium atoms? Determine the volume of … How many moles of calcium (Ca) atoms are in $77.4 \mathrm{g}$ of Ca? If I have 1405 mg of Fe₂O₃, how many moles of iron do I have? Get your answers by asking now. (c) Estimate the length of the unit cell edge, a, from the atomic radius of calcium … There are five stable isotopes (40 Ca, 42 Ca, 43 Ca, 44 Ca and 46 Ca), plus one isotope (48 Ca) with such a long half-life that for all practical purposes it can be considered stable. (b) How many nearest neighbors does each Ca atom possess? 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