Lipitor, a pharmaceutical drug that has been shown to lower "bad" cholesterol levels while raising "good" cholesterol levels in patients taking the drug, had over $13 billion in sales in 2015. Assuming one 2.0-g pill contains 7.5% of the active ingredient by mass, what mass in kg of active ingredient is present in one bottle of 25 pills?

Q: A chemist prepares a solution of copper(II) sulfate (CuSO4) by weighing out 45.79 g of copper(II)…

A: To solve this problem we have to calculate the concentration of the solution .

Q: The density of methanol at 20.0 oC is 0.791 g/mL.  What is the mass, in grams, of a 280. mL sample?

A: Density: The density of the substance can be defined as the mass of a unit volume of the substance.…

Q: A particular beer is 6.50 % ethanol by volume (C₂H₆O). If a single bottle of beer contain 750.0 mL…

A:

Q: The solubility of CoCl2 in water is 52.9 g of CoCl2 per 100 g of water. 105.3 g of CoCl2 are added…

A: Given: The solubility of CoCl2 in water is 52.9 g of CoCl2 per 100 g of water. 105.3 g of CoCl2 are…

Q: Ocean water contains 3.3 %% NaClNaCl by mass. What mass of ocean water in grams contains 43.8 gg of…

A: Mass percent of NaCl = 3.3 %

Q: A chemist prepares a solution of aluminum chloride (AIC13) by measuring out 13. umol of aluminum…

A: moles of AlCl3 = 13. μmol = (13./1000) mmol = 0.013 mmolVolume of the solution = 250. mL =…

Q: A particular beer is 6.50% ethanol by volume (C2H6O). if a single bottle of beer contains 750. ML of…

A:

Q: When a 1.271g Tums tablet reacted with 44.485 mL of hydrochloric acid (density: 1.140 g/mL), carbon…

A:

Q: A particular beer is 6.50 % ethanol by volume (C₂H₆O). If a single bottle of beer contain 750.0 mL…

A: The objective of the question is to find out the mass of ethanol present in a bottle of beer given…

Q: 9.66 x 10-3 grams of CaCO3 were present in a 5.00 mL sample of water, how many grams of CaCO3 are in…

A:

Q: The source of bitterness in dark chocolate is the compound theobromine, an alkaloid present in cocoa…

A: Number of moles is defined as the ratio of given mass by the molar mass. moles =massmolar mass

Q: Suppose

A:

Q: A 194g sample of caffeine contains 6.02 *10^23 molecules of caffeine. If a typical 10-hour energy…

A: 1000 mg = 1 g Given that: Amount of caffeine = 422 mg Number of molecules of caffeine per 194 g =…

Q: Carbon

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: The source of bitterness in dark chocolate is the compound theobromine, an alkaloid present in cocoa…

A:

Q: A solution of 34.5% sulfuric acid by weight in water has a density of 1.26 g/mL. How many grams of…

A:

Q: Aqueous hydrobromic acid  HBr  will react with solid sodium hydroxide  NaOH  to produce aqueous…

A:

Q: Lipitor, a pharmaceutical drug that has been shown to lower "bad" cholesterol levels while raising…

A: Given  The mass of the 1 pill = 1.0g  Active ingredient contain in each pill = 5.5% i.e., (5.5/100)…

Q: The source of bitterness in dark chocolate is the compound theobromine, an alkaloid present in cocoa…

A: The number of molecules of theobromine present in the sample = 6.58 × 10206.58 × 1020 molecules…

Q: A chemist prepares solution of nickel(II) chloride (NiC1₂) by weighing out 202.7 g of nickel(II)…

A: Given: mass = 202.7 g

Q: We use the density of water to calculate the mass of water from its volume. The density of water at…

A: Given, density of water =0.998 gmLvolume of water in calorimeter filled =104.6 mLwe are asked to…

Q: A chemist prepares a solution of sodium nitrate (NaNO3) by measuring out 21.4 g of sodium nitrate…

A:

Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Mass of hydrobromic acid (HBr) = 0.81 gMass of sodium hydroxide (NaOH) = 0.124 gMaximum mass of…

Q: The solubility of benzic acid in water at room temperature is 0.38 g per 100 ml of water. If 4.62 g…

A: When benzoic acid is dissolved in 100 ml of hot water (assume all the benzoic acid dissolves) and…

Q: The density of methanol at 20.0 oC is 0.791 g/mL.  What is the mass, in grams, of a 280. mL sample?

A: Given : density of methanol = 0.791 g/mL And volume of methanol = 280 mL

Q: When chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give…

A: The molecular weights: Chlorine gas is,Cl2  = 70.9 g/mol Sodium bromide, NaBr = 102.9 g/mol. Sodium…

Q: Chalcopyrite is among the most common varieties of copper ore. Assuming chalcopyrite is 34.4%…

A: Given: mass of Copper( Cu ) smelt obtained = 30.0Kg Percentage of Cu in chalcopyrite = 34.4% i.e…

Q: to make a tablet of aspirin, it requires 249 mg of salicylic acid. if the chemist purchased 9.0 x…

A: mass  of salicylic acid purchased by chemist = 9.0 x 10-3 OZ  Mass of salicylic acid required to…

Q: 7) Tums is a popular remedy for acid indigestion. A typical Tums tablet contains calcium carbonate…

A:

Q: Rubbing alcohol (isopropanol) is usually sold as a 70%vol aqueous solution. If the density of…

A: Given information: Density of isopropyl alcohol = 0.785 g/mL

Q: Vinegar contains 5.00% acetic acid by mass and has a density of 1.01 g/mL. What mass(in grams) of…

A: Given: Acetic acid = 5.00% by mass Density of vinegar  = 1.01 g/mL

Q: Aqueous hydrobromic acid  HBr  will react with solid sodium hydroxide  NaOH  to produce aqueous…

A: Reactions yield are estimated by the known values of limiting reagent. It is the compound that…

Q: When chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give…

A: Law of mass action says that mass of any substance can neither be created nor be destroyed in a…

Q: Combining one atom of carbon with two atoms of oxygen produces one molecule of carbon dioxide, along…

A:

Q: Aqueous hydrobromic acid  HBr  will react with solid sodium hydroxide  NaOH  to produce aqueous…

A: Given information:Mass of hydrobromic acid (HBr) = 76 gMass of sodium hydroxide (NaOH) = 15.8 g

Q: 1) A student measures 7.45 cm³ of chloroform using a glass syringe. Given that the density of…

A: The moles of chloroform is calculated as,

Q: A solution of 5.00% glucose (C6,H12,O6) solution is used in many medical settings. If you are given…

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.