The solubility of benzoic acid in water at room temperature is 0.54 g per 100 mL of water.  If 4.95 g of benzoic acid are dissolved in 100 mL of hot water (assume all of the benzoic acid dissolves) and then allowed to cool to room tempuerature followed by vacuum filtration, how many grams of benzoic acid crystals will be obtained?  Express your answer to two decimal places and don't forget the units.

Q: If 10.00 mL (measured using a volumetric pipette) of a solution is pipetted into a 50 mL beaker…

A: Given, Volume of the solution = 10.00 mL Weight of beaker = 43.015 g Weight of beaker+ weight of…

Q: When elemental iron corrodes it combines with oxygen in the air to ultimately form red brown…

A: (a) The mass of the iron nail will increase after the rusting process.  Rusting involves a…

Q: If a room requires 134.8 square feet (ft2) of carpeting, what is the area of the floor in units of…

A: Given that: Area of the room = 134.8 square feet(ft2) Area of floor in m2 = ? (1m = 3.28084 ft)

Q: The "Nutrition Facts" on a label of a 32 fluid ounce container of apple juice states that a serving…

A: Given that 8 fluid ounces contain 240 milligram(mg) potassium Conversion factor: 8 fluid ounces =…

Q: If a room requires 134.8 square feet (ft2) of carpeting, what is the area of the floor in units of…

A: 134.8 ft2 contain  four significant figures.  In case of multiplication and division , result…

Q: density of rubbing alcohol is .786g/ml at 20 degrees celsius.  What amount of grams of rubing…

A: The density of the rubbing alcohols is = 0.786 g/mL The required volume of the rubbing alcohol is =…

Q: Calculate the total volume, given that the three volumes shown below were combined into the same…

A: We can solve this problem by converting all three volumes in same unit litter.

Q: mol stock solution of silver A chemist makes 590. mL of silver perchlorate (AgClO,) working solution…

A: • The values provided in the question are:-  i) Initial volume of silver perchlorate solution ,V1 =…

Q: A chemist must prepare 450. mL of 1.00 M aqueous barium chloride (BaCl,) working solution. She'll do…

A: Molarity of stock BaCl2 solution(M1) = 1.27 M  Molarity of final BaCl2(M2) = 1.00 M V2 = 450. mL

Q: A chemistry student needs 15.0mL of tetrahydrofuran for an experiment. By consulting the CRC…

A:

Q: The average adult heart pumps about 84. mL/s of blood at 72 beats per minute. Suppose you need to…

A: The pumping efficiency of heart is 84 mL/s means it takes 1 second to circulate or pump 84 mL of…

Q: A chemistry student needs 45.0 mL of diethmylamine for an experiment. By consulting  the CRC…

A: Given,Volume of diethylamine = 45.0 mL = 45.0 cm3         (1mL = 1cm3)Density of diethylamine =…

Q: Chalcopyrite, the principal ore of copper (Cu), contains 34.63% Cu by mass. How many grams of Cu can…

A: % is calculated on the basis of 100.

Q: Wine is 13 % alcohol by volume. How many milliliters of alcohol are in a 0.700L bottle of wine?…

A:

Q: A 25 gram sample of a solid is placed in a graduated cylinder and then the cylinder is filled to the…

A: Mass of the solid = 25 g.Given, Mass of benzene + mass of solid = 58.8 g.So, mass of the benzene =…

Q: (1) If a 32.0 g sample of the liquid ethylcyclohexane has a volume of 40.6 mL, what is the density…

A: Density is the mass of a material substance per unit volume. Given: Mass of ethyl cyclohexane =…

Q: A concentrated sulfuric acid solution has a density of 1.84 g/cm^3 and contains 95.7% sulfuric acid…

A: Density is related to mass and volumedensity = mass (g)/volume (ml)

Q: Next, the chemist measures the volume of the unknown liquid as 0.683 L and the mass of the unknown…

A: we know the formula for the calculation of density is: => density = mass / volume

Q: 1.93. Sodium metal reacts vigorously with water. A piece of sodium weighing 19.7 g was added to a…

A: We know that, according to the law of conservation of mass in a chemical reaction, sum of the mass…

Q: If an alcoholic beverage contains 19 %(v/v) of alcohol. How many mL of alcohol will a person consume…

A: Given:1 shot = 44mLVolume percent of alcohol = 19%

Q: For a material to float on the surface of water, the material must have a density less than that of…

A: The volume of spherical ball is given as, The volume of spherical ball is 0.52 cm3.

Q: A chemistry student weighs out 0.0310 g of phosphoric acid (H, PO,), a triprotic acid, into a 250.…

A: Given values-> Weight of H3PO4 = 0.0310 gm Volume of H3PO4 = 250 ml Molarity of NaOH= 0.1900 M

Q: A low dose of aspirin is often recommended for patients who are at risk for coronary artery disease.…

A: Given : mass of acetylsalicylic acid in 1 tablet = 78 mg Duration of medicine consumption = 5.0…

Q: 1. In mL what is the volume of liquid in the burette pictured on the right (to the correct number of…

A: Three questions based on quantitative analysis, which are to be accomplished.

Q: A chemistry student weighs out 0.441 g of citric acid (H,C,H,0,), a triprotic acid, into a 250. mL…

A: Here we first calculate the molarity of the acid then use neutralization rule at equivalence point.

Q: To meaure the density of a solid, the  solid was weighed on an analytical balance. The mass was…

A:

Q: You recently completed a lab on density.  Define density.  Suppose we have a solid object with a…

A: Density: The mass of unit volume is known as density. The density of gold is given by: density of…

Q: A chemistry student needs 10.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

A: Given that: weight of tetrahydrofuran = 10 g density of tetrahydrofuran = 0.889 g. cm-3

Q: A pharmacist had 3 grams of hydromorphone hydrochloride. He used the following: 1⁄8gram, followed by…

A: Just we need to calculate amount of hydromorphone hydrochloride left.

Q: The density of a solid is (7.40x10^0) g/mL. What is this density in units of cg/L?  Hint: Break…

A: We know that 1g/ml =100000cg/L or 105 So 7.40×100 g/ml = 7.40×105cg/ml

Q: (SHOW CALCULATIONS) The density of tert-butanol is 0.775 g/mL at room temperature. What is the mass…

A:

Q: GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new…

A:

Q: You are asked by the King of Allegesia to determine if the crown he was given for his birthday is…

A: Mass of water inside the container is,

Q: A chemist prepares a solution of potassium iodide (KI) by weighing out 37.1 g of potassium iodide…

A: Interpretation - To determine the concentration of potassium iodide solution in ( g/dL ) when a…

Q: Calculate the density of the liquid

A:

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: 1. Calculate the density of lead (in g/cm3) if a rectangular bar measuring 0.500 cm in height, 1.55…

A: (1) Density is ratio of mass and volume of a Substance. It can be written as - Density = mass/volume…

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

A:

Q: The average adult heart pumps about 84. mL/s of blood at 72 beats per minute. Suppose you need to…

A: The average rate of blood pumping by adult heart at rate of 72 beats per minute is 84 ml/s. The rate…

Q: A chemist prepares a mixture of ethanol and water at a temperature of 23.0 °C. He measures out 38.5…

A:

Q: NDC 63323-359-03 305903 KANAMYCIN INJECTION, USP *1 g/3 mL (333 mg/mL) For IM or IV Use 3 mL Vial Rx…

A: Given: Mass of Kanamycin required               = 285 mg Concentration of Kanamycin injection = 333…

Q: ethanolamine 1.0 3 cm Next, the chemist measures the volume of the unknown liquid as 0.516 L and the…

A:

Q: The density of wind-packed snow is estimated to be 0.35 g/cm cubed. A flat roof that is 35 by 43…

A:

Q: A chemistry student needs  70.0mL  of pentane for an experiment. By consulting the CRC Handbook of…

A: Density, mass and volume are related by the equation given below:

Q: how much total cholesterol (in grams) is present in their body?

A:

Q: Suppose you have two 100-mLmL graduated cylinders. In each cylinder, there is 44.0 mLmL of water.…

A: Given -  Two 100 mL graduated cylinders  Volume of water in each graduated cylinder = 44.0 mL…

Q: The nutritional calorie (Calorie) is equivalent to 1 kcal. One pound of body fat is equivalent to…

A: According to the question, 1 Calorie = 1 kcal and 1 lb = 4.1×103 Calorie and also 1 kcal = 4.184 kJ.…

Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction…

A: Photosynthesis is a process by which plants make their own food.

Q: A mouthwash is 21.5 % ethanol by mass. A mouthwash may contain over 20% ethanol. If each bottle…

A: Mouthwash % ethanol by mass = 21.5 % = 21.5 g Each bottle contains 1.38 pt of mouthwash with a…

Q: gasoline density =0.74 g/mL How many liters of gasoline contain 1.63 kg of gasoline

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.