How many molecules are in 6.40 g BR2?
A. 1.28 x10^22
B. 2.41 x 10^22
C. 1.50 x 10^25
D. 2.83 x 10^25
E. None of above.
How many molecules are in 6.40 g BR2? A. 1.28 x10^22 B. 2.41 x 10^22 C....
how many grams of HNO3 are in 4.055 x10^22 molecules of HNO3? This is how they have the equation set up. 4.055 x 10^22 molecules HNO3 x 1 mol HNO3 / 6.022 x 10^23 molecules HNO3 x 63.018 g HNO3/ 1 mol HNO3= I cant get the correct answer using their equation.
how many tons are present in 4.0 mol of nickel metal? a.2.41*10^24 b.24.1*10^24 c.2.41*10^23 d.2.41*10^22
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
A) 3.91 x 1023 molecules B) 1.09 x 1021 molecules C) 1.96 * 1023 molecules D) 58.57 molecules E) 1.80 x 10-3 molecules 38) Which of the choices is the correctly balanced form of the following equation? C6H14(%) + O2(g) + CO2(g) + H20(1) A) 2C6H14() + 1902(g) 12C02(g) + 14H20(1) B) C12H28() + 380(g) 12C02(g) + 14H20(1) C) C6H14(4) + 190(g) 6CO2(g) + 7H2007 D) C6H14) + 1302(g) → 6CO2(g) + 7H20(1) E) C6H14() + 1902(g) 6CO2(g) + 7H20(1)...
8. How many molecules are contained in 0.0525 g of HF? (a) 1.58 x 10 (e) none of the above. (b) 2.30 x 10 (c) 3.16 x102 (d) 4.83 x 10 9. Given the data 3B+ 4D-A+SP AH 1856 kJ/mole AH 164 kJ/mole the AH for the reaction A +7/2F->3E+4D is (a) -1364 kJ/mole)2 (b) 2.020 x 10 kJ/mole (c) -2.02 x 10' kJ/mole (d) -2348 k/mole (e) none of the above 10. What volume, in ml, of a 0425...
A B C D 9.03 x 10 24 9.03 x 10 21 none of the above How many atoms of nitrogen are in 1.5 9.03 x 10 22 9.03 x 10 23 moles? 2.3 x 10 22 2.3x 10 21 2.3 x 10 23 none of the above How many atoms of nitrogen are in 3.8 moles? How many atoms of nitrogen are in 2.1 moles? How many atoms of nitrogen are in 4.8 moles? How many atoms of nitrogen...
7. How many molecules are present in 0.340g of HCI? A. 1.78 X 10-22 B. 6.46 X 1025 C. 5.61 X 1021 D. 2.06 X 10-23
10. 1.2044 X10 Xm = 2 n How many moles are in 1.2044 x 1024 molecules? 2.0000 moles 2 moles 4 moles d. 2.000 molecules 104 X mol 6,022xus Strong acids tend to do what? Donate hydroxide ions Donate H* ions in solution Produce OH ions 12. _amount of compared to stock solutions. Dilute solutions contain a small, solute small, solution large, solute C. 13. amount of solute compared to dilute solutions. Stock solutions contain a a larger solution smaller
How many Oxygen atoms are there in 78.1 g Na2C2O4 A)1.40 x 10^24 B)3.51 x 10^23 C)2.52 x10^28 D)3.87 x10^-24
13. For the reaction Br2(g) + Cl2(g) of Br2, Cl2, and BrCI are 0.293 M, 0.184 M Kc? A) 1.20 x 104 B) 3.01×10-5 C) 2.36×10-2 D) 4.24 x 101 E) 3.32×104 一2BrC0g), at equilibrium, it is found that the concentrations and 1.28 x 10-3 M, respectively. What is the value of