Calculate the number of fluorine (F) atoms in 0.115 g of uranium hexafluoride, UF6.
(a) 1.18 x 1021 atoms (b) 3.27 x 10-4 atoms (c) 7.00 atoms (d) 2.12 x 1026 atoms (e) 2.69 x 1020 atoms
Calculate the number of fluorine (F) atoms in 0.115 g of uranium hexafluoride, UF6. (a) 1.18...
Part A What is ΔG for the formation of solid uranium hexafluoride from uranium and fluorine at 25∘C when the partial pressure of F2 is 0.072 atm ? The standard free energy of formation of UF6(s) is -2068 kJ/mol. U(s)+3F2(g)→UF6(s) Express your answer to four significant figures and include the appropriate units. Part B Is the reaction spontaneous in the forward or the reverse direction under these conditions? 1- spontaneous in the reverse direction 2- spontaneous in the forward direction
12. Determine the number of H atoms in 1.22 x 1020 C.Ho molecules. 1.18 x 10exp22 H atoms 7.32 x 10exp20 Hatoms 4.46 x 10exp23 H atoms 2.00 x 10exp-23 H atoms Question 13 13. A compound contains 20.24% Al and 79.76% Cl. Calculate the empirical formula. molar masses: Al = 26.98 g/mole and CI = 35.45 g/mole A1203 AICI3 AICI АІЗСІ
Calculate the number of grams in: a. 4.81 mol of nitrogen dioxide, NO2 m(NO2) = b. 0.72 mol of 2-propanol, C3H, O (rubbing alcohol) m(C3H2O) = c. 1.38 mol of uranium hexafluoride, UF6 m(UF) = d. 0.492 mol of galactose, C&H 206 m(C6H12O6) = e. 0.033 mol of vitamin C, C&H:06 m(CH3O®) = Submit Answer Try Another Version 10 item attempts remaining
12 The total number of C atoms in 6.0 x 1026 g of C6H1203 is (A) 1. 6424 x 1049 atoms (B) 7.949 x 1051 atoms (C) 0.7949 atoms (D) 7.8911 x 1051 atoms at!
12. Determine the number of H atoms in 1.22 x 1020 C Ho molecules. 4.46 x 10exp23 H atoms 2.00 x 10exp-23 H atoms 1.18 x 10exp22 H atoms 7.32 x 10exp20 Hatoms 7. A liquid sample has the density of 11.9 g/cmº. Calculate volume in m3 if the mass is 0.225 kg 1.89 x 10exp-4 m3 9.10 m3 11.3 m3 1.89 x10exp-5 m3
The mass of one uranium atom is 4.0 x 10-26 kg. How many uranium atoms are there in 5.0 g of pure uranium? 1.25 x atoms Use the given information to equate the ratios of the number of uranium atoms in the given mass of pure uranium and of 1 atom to its mass. eBook 2. -0.62 points Tipler 1.PO66 Notoe O Ask Your Teache | During a thunderstorm, a total of 1.8 inches of rain falls. How much water...
3) Calculate the percentage by mass of hydrogen in PtCl2(NH3)2 A) 0.672 B) 2.016 C) 1.008 D) 0.034 E) 1.558 4) How many molecules of CH4 are in 48.2 g of this compound? A) 1.81 x 1024 B) 4.00 C) 2.00 x 1023 D) 4.64 x 1026 E) 5.00 x 10-24 5) A sample of CH2F2 with a mass of 19 g contains A) 9.5 B) 3.3 * 1024 C) 2.2 x 1023 atoms of F. D) 4.4 x 1023...
Q40. Write the orbital diagram and electron configuration for the following atoms: a. Fluorine: b. Silicon: c. Krypton: Q41. Write the abbreviated configuration and then identify the valence electrons for the following atoms. Predict the ion charge for these elements: a. Boron: b. Sulphur: c. Bromine: d. Iron: e. Fluorine: f. Copper g. Potassium h. Aresenic
How many molecules are in 1.500 g of riboflavin, C17H20N4O6? A) 4.167 x 10-22 B) 2.400 x 1021 C) 1.066 x 1021 D) 1.067 x 1024 E) 3.400 x 1026
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