19 How many hydrogen atoms are in a 1.0 g sample of acetic acid, CH3COOH? The molar mass of acetic acid is 60.06 g- mor-1.
4.0 x 1022 atoms H
2.5 x 1021 atoms H
1.0 x 1022 atoms H
3.6 x 1025 atoms H
How many hydrogen atoms are in a 1.0 g sample of acetic acid, CH3COOH?
Question 16 (0.5 points) ✓ Saved How many hydrogen atoms are present in 0.829 g of Mg(H2PO4)2.2H2O? molar mass of Mg(H2PO4)2 .2H2O 20 = 254.32 g/mole OA) 8.00 B) 1.57 x 1022 • C) 7.10 X 1022 D) 1.80 x 1025
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?
ENERAL CHEMISTRY 1/ will exe? Destion 4 ot yet nswered How many hydrogen atoms are there in 0.402 g of water? Molar mass: H20 = 18.02 g/mol; Avogadro No. = 6.022 x 1023 arked out of 67 Flag uestion Select one: a. 1.20 x 1022 b. 4.02 x 1022 C 2.71 x 1023 d. 1.34 x 1023 e. 2.69 x 1022
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 hydrogen atoms are in 135 g of H20? Multiple Choice o 170 atoms o 4.51 x 1024 atoms o 9.02 x 1024 atoms o 8.04 x 1022 atoms o 2.49 х 10-23 atoms
How many atoms are in a 5.00 mg sample of oxygen? 1.9 × 1020 9.4 × 1022 6.0 × 1021 1.9 × 1023 5.3 × 1022
How many hydrogen atoms are in 0.1488 g of phosphoric acid , H3PO4 ?
Using a reference source, look-up the structural formula for acetic acid. Replacing hydrogen atoms on the carbon with chlorine atoms causes an increase in acidity. The results are summarized below: Acid Formula Ka at 25 oC Acetic CH3COOH 1.8 x 10-5 Chloroacetic CH2 ClCOOH 1.4 x 10-3 Dichloroacetic CH Cl2COOH 3.3 x 10-2 Trichloroacetic CCl3COOH 2 x 10-1 Using Lewis structure as the basis of your discussion, explain the observed trend in acidities in the series. Calculate the pH of...
41. Suppose you have half a mole of sulfur atoms. How many sulfur atoms do you have? 42. How many micrograms of zinc carbonate are there in 52.0 x 10-5 moles? 43. When 90 grams of water is evaporated, how many atoms of hydrogen was lost? 44. How many picoliters of water are in 3.32 mol of water? 45. How many centiliters of sulfuric acid are in 32.9 x 10-23 molecules of acid? The density of sulfuric acid Page 6...
Question 6 4 pts The dicarboxylic acid potassium hydrogen pthalate (shown in the figure) is used to standardize solutions of strong base. What is the molar mass of this compound? OH 172.2 g/mol 192.2 g/mol 204.2 g/mol 71.08 g/mol 248.9 g/mol Which of the following compounds contains the largest number of atoms? 4.0 mol of H2S 1.0 mol of CH3COOH 2.0 mol of Na2SO4 5.0 mol of HBr 3.0 mol of NO;