Ibuprofen, C13H18O2, an active ingredient in pain relievers has a molar mass of 206.31 g/mol. How many moles of ibuprofen are in a bottle that contains 33 g of ibuprofen? Write only NUMERIC ANSWER with no units to earn computer credit.  You must show complete dimensional analysis with all units properly labelled, if it comes as a short answer on your test.  1 pointYour answer

How many molecules are there in 1.82 g of caffeine? Molar mass of caffeine = 194.19 g mol-1[Reminder: 1e47 is the same as 1 x 1047]Question 3Answer1.56e-260.009375.64e212.13e265.64e18

How many moles are there in 22.195 g of C6H12O6?Give your answer in moles and to three decimal places.(Molar mass of  C6H12O6 = 180.16 g mol-1)

. 102 grams of a gas contains 6 moles. What is its molar mass?1 point17 g/mol0.059 g/mol0.059 mol/g17 mol/g

How many moles of OH− are there in 2.591 g of Mg(OH)2? Give your answer in moles and to three decimal places. (Molar mass of Mg(OH)2 = 58.32 g mol−1)

Question 2Tips1 ptsHow many moles of OH− are there in 2.286 g of Mg(OH)2?Give your answer in moles and to three decimal places.(Molar mass of  Mg(OH)2 = 58.32 g mol−1) Flag question: Question 3Question 3Tips1 ptsIf 0.86 mol of a substance has a mass of 52.10 g, what is its molar mass?Give your answer in g mol-1 and to two decimal places. Flag question: Question 4Question 4Tips1 ptsWhat is the percentage yield (no decimals in answer) where you obtained 16.6 grams from a reaction in which the theoretical yield was 25 g? Flag question: Question 5Question 5Tips2 ptsYou dissolve 8.18 g of sodium chloride in 500 mL of water, what is the molarity of sodium cations in the solution as moles per litre? Give your answer to two decimal places. Flag question: Question 6Question 6Tips1 ptsIf you obtained a percentage yield of 12.7% from a reaction where the theoretical yield was 84 g, what was the actual amount of material you obtained in grams?  Flag question: Question 7Question 72 ptsAs you move down a group (e.g. moving from Al to Ga), the number of electrons/filled orbitals means that the atomic radius of the atom  Flag question: Question 8Question 81 ptsFor the following reaction, which would be the limiting reagent?  2H2 +O2 --> 2H2O You add 0.225 mol of hydrogen gas (H2) and 0.125 mol of oxygen gas (O2)Group of answer choicesWater (H2O)Hydrogen Peroxide (H2O2)Hydrogen Gas (H2)Oxygen Gas (O2)