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Which of the following represents the least number of molecules?
(a)
(b)
(c)
(d)
(e)
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Chemistry Atoms First2e
- Calculate each of the following quantities: (a) Amount (mol) of 0.588 g of ammonium bromide (b) Number of potassium ions in 88.5 g of potassium nitrate (c) Mass (g) of 5.85 mol of glycerol (C3H8O3) (d) Volume (L) of 2.85 mol of chloroform (CHCl3; d 5 1.48 g/mL) (e) Number of sodium ions in 2.11 mol of sodium carbonate (f) Number of atoms in 25.0 mg of cadmium (g) Number of atoms in 0.0015 mol of fluorine gasarrow_forwardDetermine the number of moles of compound and the number of moles of each type of atom in each of the following:(a) 25.0 g of propylene, C3H6(b) 3.06 × 10−3 g of the amino acid glycine, C2H5NO2(c) 25 lb of the herbicide Treflan, C13H16N2O4F (1 lb = 454 g)(d) 0.125 kg of the insecticide Paris Green, Cu4(AsO3)2(CH3CO2)2(e) 325 mg of aspirin, C6H4(CO2H)(CO2CH3)arrow_forwardPropane is widely used in liquid form as a fuel for barbecue grills and camp stoves. For 85.6 g of propane, calculate the following quantities. The formula of propane is C3Hg. (a) The moles of propane: moles (b) The grams of carbon: gCarrow_forward
- What is the molecular formula of each compound?(a) Empirical formula CH (μ=78.11 g/mol)(b) Empirical formula C₃H₆O₂(μ=74.08 g/mol)(c) Empirical formula HgCl (μ=472.1 g/mol)(d) Empirical formula C₇H₄O₂(μ=240.20g/mol)arrow_forwardConsider the balanced chemical reaction shown below. 4 NH3(g) + 5 O2(g) 4 NO(g) + 6 H2O(g) In a certain experiment, 4.297 g of NH3(g) reacts with 2.005 g of O2(g). (a) Which is the limiting reactant? (Example: type NH3 for NH3(g))(b) How many grams of NO(g) form?(c) How many grams of H2O(g) form?(d) How many grams of the excess reactant remains after the limiting reactant is completely consumed?arrow_forward16. How many moles are contained in the following? (a) 25.0 g NaOH (b) 44.0 g Br2 (c) 0.684 g MgCl, g? (d) 14.8 g CH,OH (e) 2.88 g Na,SO, (f) 4.20 lb.Znl, 18. Calculate the number of grams in each of the following (a) 4.25 x 10mol H,SO, (b) 4.5 x 1022 molecules CCl, (c) 0.00255 mol Ti (d) 1.5 x 106 atoms S g: 20. How many molecules are contained in each of the following: (a) 1.75 mol Cl, (b) 0.27 molC,H,O (c) 12.0 g CO, (d) 1000. g CH,arrow_forward
- I only need parts B and D, thank you! The following quantities are placed in a container: 1.98 × 10^24 atoms of hydrogen, 1.32 mol of sulfur, and 113.8 g of diatomic oxygen. (b) What is the total number of moles of atoms for the three elements? (c) If the mixture of the three elements formed a compound with molecules that contain two hydrogen atoms, onesulfur atom, and four oxygen atoms, which substance is consumed first? (d) How many atoms of each remaining element would remain unreacted in the change described in (c)?arrow_forward2 C3H6(g) + 9 O2(g) 6 CO2(g) + 6 H2O(l) In a certain experiment, 3.092 g of C3H6(g) reacts with 9.125 g of O2(g). (a) Which is the limiting reactant? (b) How many grams of CO2(g) form? (c) How many grams of H2O(l) form? (d) How many grams of the excess reactant remains after the limiting reactant is completely consumed?arrow_forward(b) How many molecules are in a snowflake containing 3.00 x 10-5 g of H2O answer in molecules (c) a 500. mg tablet of vitamin C, C6H8O6 NOTE THE UNITS OF mg. answer in molecules(d) how many ATOMS are in the vitamin C sample in part (c)?answer in ATOMS(d) how many ATOMS of oxygen are in the vitamin C sample in part (c)? answer in atomsarrow_forward
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