A box of pencils at the store contains 38 pencils . A carton of pencils contains 36 boxes. Each pencil has a mass of 2.47 g. How many cartons of pencils would I have to buy in order to have 35.5 kg of pencils ? Please round your answer to the nearest whole number, and do not put units on your answer.

Q: Convert (7.8x10^24) molecules of sodium chloride, NaCl (OR N a C l) to grams of sodium chloride.…

A: To solve this problem first we have to know the molar mass of NaCl. From the molar mass we know…

Q: A major component of gasoline is octane (CH8). When octane is burned in air, it chemically reacts…

A:

Q: density of unknown liquid initial mass of erlenmeyer flask 119.528 g final mass of erlenmeyer…

A: In the question Following information given -   Initial mass of erlenmeyer flask = 119.528 g Final…

Q: Liquid hexane (CH3(CH2),CH3) will react with gaseous oxygen (02) to produce gaseous carbon dioxide…

A: The balanced reaction between liquid hexane and oxygen gas is:

Q: A major component of gasoline is octane (C,H,). When octane is burned in air, it chemically reacts…

A: We will first write balanced stoichiometric equation, then using it calculate mass of oxygen…

Q: A chemist measures the amount of fluorine gas produced during an experiment. She finds that 1.19 g…

A: Given mass of fluorine gas is 1.19 g.  Molar mass of fluorine is 18.99 g/mol. Relation between moles…

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 jogger wants to run 46 kilometers at a pace of 2.53 meters/second. How many hours must she run?…

A:

Q: A bag of candies at the store contains 42 candies. A box of candy bags contains 12 bags. Each candy…

A: Given that a box of candy bags contains 12 bags.  The conversion factor for the above data is; 1 box…

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

A:

Q: combined mass of ten raindrops in grams?

A: Given : The mass of a raindrop = 8 milligrams or 8 mg

Q: chemist prepares a solution of sodium carbonate (Na, CO, by weighing out 62.1 g of sodium carbonate…

A: We have given that Mass of Na2CO3 = 62.1 grams Volume of volumetric flask = 300mL  i.e.…

Q: Liquid hexane (CH,(CH,) CH, will react with gaseous oxygen (0,) to produce gaseous carbon dioxide…

A: The complete combustion reaction of hexane + O2 is 2C6H14 + 19O2 --------> 12CO2 + 14H2O

Q: A chemist adds 1.30 L of a 0.26M copper(II) sulfate (CuSO,) solution to a reaction flask. Calculate…

A: Given, volume = 1.30 L  Concentration = 0.26 M  Molar mass of CuSO4 = 159.609 g/mol

Q: A major component of gasoline is octane C3H18 When octane is burned in air, it chemically reacts…

A: Given data, Mass of octane= 9.63 g, molar mass=114 g mol-1 mass of oxygen required = ?, molar mass=…

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

A: Recall the reaction of photosynthesis  6CO2 + 6H2O ----> C6H12O6 + 6O2 According to the…

Q: A major component of gasoline is octane (C3H18). When octane is burned in air, it chemically reacts…

A:

Q: Aqueous sulfuric acid H2SO4 will react with solid sodium hydroxide NaOH to produce aqueous sodium…

A: Given: Mass of H2SO4 taken = 83 g. Mass of NaOH taken = 114 g.

Q: In the lab, a student measures a teaspoon of an unknown liquid. The teaspoon of liquid has a mass of…

A:

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

A: This is a question based on stoichiometry of a reaction and to check whether limiting reagent…

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

A:

Q: Super fine 40-gauge copper wire has a diameter of only 0.080 mm and wei wire is pulled off to wind a…

A: Given: Diameter of the gauge is 0.080mm The weight of the gauge is 705.g The weight was reduce due…

Q: (a) The speed of light in a vacuum is 2.998x 108 m/s. Calculateits speed in miles per hour. (b) The…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A student obtains the following data:  a- Mass of evaporating dish…

A: Mass of evaporating dish = 21.345g Mass of evaporating dish and saturated NaCl solution= 42.817 g…

Q: A cyclist rides at an average speed of 26 miles per hour, If she wants to bike 180 km, how long (in…

A: Please find your solution below : Speed is defined as the distance travelled per unit time. In other…

Q: Ammonia (NH;) chemically reacts with oxygen gas (0,) to produce nitric oxide (NO) and water (H,0).…

A: Mass of ammonia = 2.9 g  Mass of nitric oxide = ?

Q: A major component of gasoline is octane (C3H18). When octane is burned in air, it chemically reacts…

A: Given data, the mass of octane=9.8 g, the molar mass of octane=114 g mol-1 mass of oxygen= ? , molar…

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

A:

Q: Ammonia chemically reacts with oxygen gas to produce nitric oxide and water. What mass of ammonia is…

A: Moles of oxygen can be calculated as:

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: Liquid hexane (CH, (CH,) CH,) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide…

A:

Q: Liquid hexane CH3CH24CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and…

A: Here, we have to calculate mass of carbon dioxide produced.

Q: quid octane (Ch3(ch2)6ch3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide and…

A:

Q: A major component of gasoline is octane (CgHis). When octane is burned in air, it chemically reacts…

A:

Q: If one Gold Galleon coin from Harry Potter weighs 12.75g and you have a bag of Gold Galleons that…

A: Weight of 1 coin = 12.75g Total weight = 224g

Q: How many mL of 0.888 molar magnesium chloride must a scientist pour into a beaker to have 19.0 g of…

A:

Q: If a room requires 158.3 square feet (ft) of carpeting, what is the area of the floor in units of…

A: A room requires of carpeting = 158.3 ft2  Area of floor in m2 = ?

Q: Blueberry high-fiber muffins contain 58 %% dietary fiber by mass. If a package with a net weight of…

A: Introduction :  We have to calculate grams of fiber in each muffin . Given: 58% dietary fibre by…

Q: How many grams of lithium will combine with 29.2 g of sulfur to form the compound Li2S?…

A: Given data,Mass of sulphur=29.2gThe balanced reaction for the formation of Li2S can be given…

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: A major component of gasoline is octane (CH₂). When octane is burned in air, it chemically reacts…

A:

Q: How many mL of 0.799 molar magnesium chloride must a scientist pour into a beaker to have 16.1 g of…

A: given, molarity of magnesium chloride = 0.799 molar weight of magnesium chloride = 16.1 g

Q: When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 27.6 g of carbon…

A: Mass of oxygen (m) that is used to produced carbon dioxide is calculated as follows:

Q: Write an equality for the following medication in stock: 0.35 g of Lanoxin per 1 tablet of Lanoxin…

A: We'll answer the first question since the exact one wasn't specified. Please submit a new question…

Q: Liquid hexane (CH3(CH2), CH,) will react with gaseous oxygen (02) to produce gaseous carbon dioxide…

A:

Q: Aqueous hydrochloric acid  HCl  will react with solid sodium hydroxide  NaOH  to produce aqueous…

A: The reacting substance which undergoes complete consumption and controls the quantity for product is…

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

A:

Q: Aqueous hydrochloric acid (HCI) will react with solid sodium hydroxide (NAOH) to produce aqueous…

A:

Q: Aqueous sulfuric acid (H,SO,) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Below attached file showing the details answer. All the best.

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

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.