Answer: C 20) How many moles of Pb are in 4.71 x 1021 Pb atoms? ask Kau How many moles are there in 17.5 grams o...
How many moles of Pb are in 4.71 x 104 Pb atoms? Select one: O a. 2.84 x 1045 o b. 6.022 x 1023 O c. 207.2 O d. 0.00782
b) How many moles of cadmium are in 1.975 x 1021 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?
5a) 25.0 g of C are how many moles? (2.08 moles) 24 atoms of C) 25.0 g of C are how many atoms of C? (1.25 x 10 -1 g) 20 moles of Ag are how many atoms of Ag? (6.456 x 10 -3 b) 1.072 x 10 moles of Ag are how many grams? (1.156 x 10 -3 1.072 x 10 atoms) -10 g) -12 moles) 12 c) 2.408 x 10 molecules of Cl are how many grams? (2.835...
1. How many ATOMS of phosphorus, are present in 4.10 moles of tetraphosphorus decaoxide, P4O10? __________ atoms of phosphorus 2. How many MOLES of oxygen are present in 1.75×1021 molecules of tetraphosphorus decaoxide? ___________ moles of oxygen 3. How many ATOMS of phosphorus are present in 7.95 grams of tetraphosphorus decaoxide, P4O10? ________atoms of phosphorus 4.How many GRAMS of oxygen are present in 1.75×1021 molecules of tetraphosphorus decaoxide? _________grams of oxygen
A sample of glucose, C6H12O6, contains 1.270×1021 carbon atoms. 1.How many atoms of hydrogen does it contain? 2.How many molecules of glucose does it contain? 3.How many moles of glucose does it contain? 4.What is the mass of this sample in grams?
A sample of glucose, C6H12O6, contains 1.280×1021 carbon atoms. Part 1: How many atoms of hydrogen does it contain? Part 2: How many molecules of glucose does it contain? Part3: How many moles of glucose does it contain? Part 4: What is the mass of this sample in grams?
How many total atoms are in 0.170 g of P2O5? How many moles of Fe2O3 are in 211 g of the compound? For the given elements, convert the given mole amounts to grams. How many grams are in 0.0464 moles of sodium? How many grams are in 0.250 moles of cobalt? How many grams are in 0.790 moles of selenium? Calculate the number of atoms in a 5.49 × 103 g sample of lithium. How many moles of MgS2O3 are...
2) (4pts) Answer the following questions about sodium phosphate (NasPO.) How many oxygen atoms are in one molecule of sodium phosphate? many oxygen atoms do you have? If you have one dozen molecules of sodium phosphate, how many oxygen atoms do you h If you have one mole of sodium phosphate molecules, how many oxygen atoms do you have? (16 pts) Perform the following conversions: 3) a) 2.89 × 103 helium atoms into moles of helium atoms: b) 0.500 moles...
Determine the mass, in grams, of 0.400 moles of Pb (1 mol of Pb has a mass of 207.2 g). How many atoms are in 1.2 mol of carbon?