+ X Question 15 of 16 Determine the number of atoms in 30.0 g of P....
am101 Question 14 of 16 Determine the number of atoms in 37.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99 g.) atoms 7 8 9 +/- X 100
Question 3 of 15 Determine the number of atoms of O in 92.3 moles of Cr3(PO4)2. atoms 1 2 3 х 5 6 7 8 9 +/- X 100
COD 15:16 1/24 How many atoms are in 2.52 g of helium? Select the correct answer below. O 2.41 x 1024 atoms 2 9.57 * 102 totris O 1.62 x 10% atoms 3.79 x 10 atoms FEEDBACK وان ااااااااااات
Question 13 of 18 Calculate the number of atoms in a 7.52 x 103 g sample of strontium. 109.3 atoms 3 MacBook Pro 4 5 6 8
number 15 please 4690₂ 1 mol 16.023*10232 - atoms 131.998 g 1 1 mol . 02 14.In what family on the periodic table would you find an element with a full s orbital and 4 electrons in a p orbital? 15. What is the molecular formula of a compound with an empirical formula of CH3 that has the molar mass of 90 g/mole? 16.A compound of only iron and oxygen is found to be 30.069/ | 1 mol 46902 131.998...
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 atoms in a 7.52 x 10 g sample of carbon. atoms atoms
Calculations Based on Chemical Formulas (Section 6-5) 6-29 Determine the number of atoms present in 20.0 g! samples of each of the following elements? a. Be b. Ar 6-31 Determine the mass, in grams, of each of the following quantities of substance. a. 6.02 x 102 copper atoms b. 3.01 x 102 copper atoms d. 1 silver atom 6-33 Determine the number of moles of substance present in each of the following quantities. a. 10.0 g He b. 10.0 g...
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!
plz help 2. Determine the number of moles of Cu atoms in 0.72 g of copper metal. 3. Determine the number of moles of HNO, present in 10 mL of dilute (8M) nitric acid. 4. How many moles of NaOH are present in 8.46 g of NaOH?