What is the mass of 3.01 x 1023 molecules of CO2?
44.0 g |
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44.0 amu |
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22.0 g |
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22.0 amu |
What is the mass of 3.01 x 1023 molecules of CO2? 44.0 g 44.0 amu 22.0...
How many moles of CO2 are produced when 3.01 x 1023 molecules of C3Ho react completely in the following equation? 2C3H6 + 902 +6CO2 + 6H20 O 2.01 x 1023 mol 1.51 x 1023 mol O 1.50 mol O 0.167 mol Question 38 4 pts What is the concentration of an HCl solution if 25.0 mL of the solution is neutralized completely by 40.0 mL of a 0.30 M KOH solution? O 0.19 M O 0.48 M O 300M 0...
3. What is the mass in grams of 6.022 x 1023 molecules of CO2? A. 22 g B. 44 g C. 668 D. 28 g
If 4.05 x 1023 molecules of a substance have a mass of 86.2 g, what is the molar mass of the substance? Multiple Choice 128 g/mol 3.49 1025 g/mol 0 2.13 * 1022 g/mol 4.70 * 1021 g/mol 58.0 g/mol
How many grams of sodium iodide are required to react completely with 3.01 x 1023 molecules of chlorine? 2 NaI + Cl2 ------> I2 + 2 NaCl A. 1.50 g B. 37.5 g C. 150. g D. 74.9 g 1 points QUESTION 2 When 22.0 g of NaOH and 21.0 g of H2SO4 are mixed and react according to the reaction: 2 NaOH + H2SO4 ------> Na2SO4 + 2 H2O, which is the limiting reagent? A. NaOH B. H2SO4 C....
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)...
1. 24.8 g of oxygen contains a. 9.33 x 1023 oxygen atoms b. 50 amu c. none of these d. 1.49 x 1025 oxygen molecules e. 1.55 mol of oxygen molecules 2. 1.2 moles of oxygen atoms represent a. 0.4 g b. 0.72 x 1024 atoms c. 1.9 x 101 atoms d. 1.0 x 102 g e. none of these
How many molecules of CO2 are there in 132 g of CO2? 1.81 x 1024 2.00 x 1023 3.00 x 1024 none of these
1. 2.35 x 1023 molecules of CO2 gas are in a sealed container. What is the volume, in liters, of the container? 2. How do the following affect the position of equilibrium in the following reaction? CaC2(s) + 2H2O(g) ⇌ Ca(OH)2(aq) + C2H2(g) a. addition of acetylene (C2H2) gas b. removal of some of the water c. increase in pressure d. removing some of the calcium hydroxide e. increase in volume of reaction container f. addition of...
11.0 g of aluminum at 200∘C and 22.0 g of copper are dropped into 44.0 cm3 of ethyl alcohol at 15.0∘C. The temperature quickly comes to 28.0 ∘C. What was the initial temperature of the copper in ∘C?
4. Find the mass, in grams, of 4.21 x 1023 molecules of N2 5. How many particles are there in 2.34 g of a molecular compound with a gram molecular mass of 233 g? T2 6. Aspartame is an artificial sweetener that is 160 times sweeter than sucrose (table sugar) when iissolved in water. It is marketed by G.D. Searle as Nutra Sweet. The molecular formula of aspartame is C14H18N205 a) Calculate the gram-formula-mass of aspartame. To ed b) How...