What mass (in grams) of Ca(OH)2 contains 8.15×1023 O atoms?
What is the mass in grams of: 12.044 × 1023 sodium atoms? 15.0 × 1023 sodium atoms?
What is the mass of 3.119 moles of Ca(OH)2? O 74.10 g O 4.209 x 10-2, O 23.7569 462.2 g 231.1g QUESTION 2 A 3.20-mol sample of aluminum represents how many atoms? o 1.93 x 1024 atoms 5.31 x 10-24 atoms 1.25 x 1023 atoms 5.20 x 1025 atoms QUESTION 3 49.4 g of Cr represents how many atoms? 0.950 atoms atoms 4.27 x 10-21 2.97 x 1025 atoms 5.72 x 1023 atoms
what is the mass (grams) of 6.022 x 1023 potassium atoms? - How many sodium atoms are there in 5.000 moles? How many sodium atoms are there in 100 narams of sodium?
1. One mole of sodium atoms contains: a) 23 atoms b) 6.022 x 1023 grams c) 6.022 x 1023 atoms d) 60.22 x 1023 atoms
Calculate the mass, in grams, of each of the following. 1.1×1023 gold atoms
A silver ring is composed of 1.02×1023 atoms.1.02×1023 atoms. Calculate the mass of the ring in grams.
1.93 1026 atoms Question 19 (1 point) What is the mass of 12.04 1023 atoms of O? 0 8.0g O 16g 0 32 g O 17 g Onone of these Question 20 (1 point) What is the mass in grams of 557 copper atoms? 1.46 10-23 g of Cu 5.88 10-20 g of Cu 3.54 104 g of Cu 5.28 1024 g of Cu ID 2.13 1028 g of Cu none of these Question 20 (1 point) What is the...
One mole of gallium (6 × 1023 atoms) has a mass of 70 grams, as shown in the periodic table on the inside front cover of the textbook. The density of gallium is 5.9 grams/cm3. What is the approximate diameter of a gallium atom (length of a bond) in a solid block of the material? Make the simplifying assumption that the atoms are arranged in a "cubic" array, as shown in the figure. Remember to convert to SI units.
A 10.0-g sample of silicon contains _____ silicon atoms? O a) 6.02 x 1023 O b) 2.14 x 1023 O c) 0.356 od) 1.69 x 1026 e) 6.02 x 1024
mpleting Part C 1.8 x 1023 lead atoms Express the mass in grams to two significant figures. VO Aydo Submit My Answers Give Up Part D 7.6 x 1021 uranium atoms Express the mass in grams to two significant figures. Submit My Answers Give Up Provide Feedback Continue