Calculate the mass, in grams, of each of the following. 1.1×1023 gold 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.
What is the mass in grams of: 12.044 × 1023 sodium atoms? 15.0 × 1023 sodium 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?
What mass (in grams) of Ca(OH)2 contains 8.15×1023 O atoms?
A silver ring is composed of 1.87×1023 atoms. Calculate the mass of the ring in grams.
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.
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
3. Problem Solving: (10 Pts each) Answer on this sheet 1) If 2.01 x 1023 atoms of an element sodium atoms from Group IA of the periodie calculate the mass of these atoms? 7.675 grams,
2) A gold necklace contains 0.54 mol of gold. What is its mass in grams? 3) A helium balloon contains 0.56g of He. How many moles of He does it contain? 4) How many Na atoms in 255 g of Na3PO4? 5) Calculate the mass in grams of 6.4 x 102 NO: molecules 6) Determine the number of atoms of O in 84.0 g of CsH1005
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