Find the mass of 5.08 x 1021 atoms of arsenic, which has a molar mass of...
Question 3 of 37 Determine the mass in grams of 3.52 1021 atoms of arsenic. (The mass of one mole of arsenic is 74.92 g. g 1 2 3 4 5 6 с 7 8 9 +/- 0 X 100 + 29 MacBc
QUESTION 26 What is the mass, in grams, of one arsenic atom (NA- 6.022 x 1023 mol-1? O 5.48 x 10-23g O 33.0 g O 74.9 g O 1.24 x 10-22 g O 804 x 1021 g
5. What is the mass of 1.63 x 1021 silicon atoms? (A) 2.71 x 10 g (B) 4.58 x 1022g (C) 28.08 g (D) 1.04 x 10 g (E) 7.58 x 102 g
Determine the mass in grams of 3.00 x 10^21 atoms of arsenic. (The mass of one mole of arsenic is 74.92g.)
Determine the mass of Mg3N2 that contain 3.97 x 1021 N atoms.
Determine the mass of NO2 that contain 3.31 x 1021 N atoms.
A 25.00 mL sample of 0.685 M cobalt (II) phosphite (X) a. has a molar mass of 105.9064 g/mol b. has a molar mass of 105.906 g/mol 4. contains 1.8*10 g CX) contains 6.280 g contains 6.28 g CX) contains 6.3 g contains 5.732 g CX) contains. contains 5.l g contains 4.380 g CX) contains 4.38 g( contains 4.4 g contains 1.814 g CX) contains 1.81 g CX) contains 1.8 g (X) contains 2 PO4 ions contains 6 PO4 ions...
Silicon (4 valence electrons) can be doped with arsenic (5 valence electrons) to make an n-type semiconductor. Assuming 1 in every 15 million silicon atoms is replaced with arsenic, calculate the carrier concentration, n, of the semiconductor. [Density of silicon = 2.33 g/cm3. Molar mass of silicon = 28.1 g mol–1.]
Avagadro's Number Molar Mass Number of Moles of Mass of atoms atoms atoms What is the mass of 5.01X1021 Fe atoms How many atoms are in 42.31 g of Ag
Acetanilide, which has a molar mass of 135.17 g/mol, can be nitrated to nitroacetanilide, which has a molar mass of 180.16 g/mol, by the addition of nitric acid. What is the theoretical yield (in g) of the mononitrated product, nitroacetanilide, from 0.499 g of acetanilide?