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Calculate the number of atoms in a 6.73 x 10 g sample of strontium. 26 1.09...
Calculate the number of atoms in a 3.42 × 103 g sample of strontium.
Question 13 of 18 Calculate the number of atoms in a 7.52 x 103 g sample of strontium. 109.3 atoms 3 MacBook Pro 4 5 6 8
Calculate the number of atoms in a 7.52 x 10 g sample of carbon. atoms atoms
10 The half life for the radioactive decay of rubidium-87 to strontium-87 is 4.88 x 10 years. Suppose nuclear chemical analysis shows that there is 0.271 mmol of strontium-87 for every 1.000 mmol of rubidium-87 in a certain sample of rock. Calculate the age of the rock. Round your answer to 2 significant digits. Ar years x10
Calculate the number of atoms in a 6.83×103 g sample of lithium.
Calculate the number of H atoms present in a 5.00 g sample of NH3 (g)?
Calculate the number of atoms in each of the following masses: a. 54.0 g of aluminum ogAlx imetat x 6.022 X 10 atoms Al 26.98gAT imotat = 1.21x102t atoms Al b. 69.45 g of lanthanum (La) c. 0.697 g of gallium d. 0.000 000 020 g beryllium 6) Calculate the mass of the following numbers of atoms: a. 6.022 x1024 atoms of tantalum (Ta) 6022 X 1024 atoms Tax imotta X 6.022 x 1023 abousta 180 95g Ta motta =...
Calculate the number of hydrogen atoms in a 60.0 g sample of ammonia (NH3). Be sure your answer has a unit symbol if necessary, and round it to 3 significant digits. 0 X 5 ? Check
17.35 Strontianite (strontium carbonate) is an important mineral of strontium. Calculate the solubility (in g/L) of strontium carbonate, SrCO3, from the solubility product constant (Kyp 9.3 X 10-10 from Table 17.1; MW = 147.63 g/mol).
4. Calculate the number of H atoms present in a 5.00 g sample of NH (g)? (3 Pts.) 2