When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 14.4 gg of carbon were burned in the presence of 54.7 gg of oxygen, 16.3 gg  of oxygen remained unreacted. What mass of carbon dioxide was produced?

Q: The solubility of potassium chromate is 66.8 g per 100 g of water. In an experiment, a student had…

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: A citrus dealer in Florida sells boxes of 100 oranges at a roadside stand. The boxes routinelyare…

A: Given data contains, The average weight of orange is 7.2 ounces. Average weight of the boxes is 3.2…

Q: A large lake contains 1.35 × 1012 m3 of water.  What is this volume in milliliters?   Note:  1 L = 1…

A: Given,Volume of water = 1.35*1012m3.

Q: The following statements pertain to the development of the theory of combustion by the French…

A: Given: (a) A metal is burned in a closed container, and the change in mass of the solid and volume…

Q: A student uses a stoppered 25.0-mL volumetric flask to determine the density of a liquid. The mass…

A:

Q: 48. Are these data sets on chemical changes consistent with the law of conservation of mass?(a) A…

A: The law of conservation states that for an isolated system the mass can neither be created nor be…

Q: You made a 36.6 g sample of a compound made of carbon and oxygen. You know that 10.0 g of carbon…

A: Number of moles = Mass/Molar mass

Q: Prior to hosting an international soccer match, the local soccer club needs to replace the artifical…

A: Given:The cost of grass turf = $8.00per square meter.The field is 0.1080 km by 0.0680 kmWe need to…

Q: A student performed an experiment to determine the percent water in a sample of food and collected…

A: Given: Mass of empty watch glass = 43.5245 g Mass of watch glass and undried food = 50.6270 g Mass…

Q: A sample of sodium reacts completely with 0.213 kg of chlorine, forming 351 g of sodium chloride.…

A: The balanced chemical reaction between sodium and chloride is used to calculate the mass of sodium.

Q: If your front lawn is 25.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates…

A: Lawn is rectangular which has width = 25.0feet; length = 20.0feet  so Area = length * width…

Q: Which substance can be separated by filtration?  A. Compound B. Element C. Mixture D. Solution

A: Matter exhibits two types of property:  Physical and chemical

Q: Classify each process as a chemical or physical change. a. the condensation of water on the outside…

A: In a process, when there is no change in the chemical identity of the substance, then such a process…

Q: The solubility of potassium chromate is 66.9 g per 100 g of water. In an experiment, a student had…

A: The question is based on the concept of solubility. We have to calculate how much solute can be…

Q: The volume of a sample of oxygen gas changed from 10 mL to 11 mL as the temperature changed. Is this…

A: A chemical change is observed when there is a change in the chemical composition of elements.…

Q: Label each of the following properties of sodium as eithera physical property or a chemical…

A: A physical property of a matter is the one that can be noticed without bringing any compositional…

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: On average, Earth’s crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink…

A: Given: Mass of Earth's crust = 2 ton = 2000 Kg.                             (Since 1 ton = 1000 Kg)…

Q: 1. A 7.45 g sample of calcium carbonate completely decomposes into calcium oxide (lime) and carbon…

A: Hello.  This is multiple part question so, we answer the first question only.  If you want answer…

Q: For the treatment of cystic fibrosis, it has been found thatinhaling a mist of saline solution can…

A:

Q: When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 16.8 g of carbon…

A: Balanced chemical equation for the reaction is given below.

Q: A 2.0-liter volume of hydrogen gas combined with 1.0 liter of oxygen gas to produce 2.0 liters of…

A: Step : 1             Does oxygen undergo a chemical or physical change?

Q: The density of aluminum is 2.70 g/cm3. How much space (volume) would 10.0 grams of aluminum occupy?

A: Given datas –  density of aluminium  = 2.70 g/cm3 or g/mL  mass of aluminium  = 10.0 g

Q: Identify each process as a physical change or a chemical change. Give the basis for your answer. (a)…

A: The explanation is given below-

Q: If your front lawn is 21.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates…

A: As given that each square feet of lawn are accumulated 1450 new snowflakes per minutes.Calculate the…

Q: 74 ml of methane (d=0.679/cm^3) is mixed with 279 ml of water (d=7g/cm^3) What is the volume percent…

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: 6. Every morning I use 1 cup of Bisquick pancake mix to make pancakes for my kids. How many boxes of…

A: 6) Consumption of Bisquick pancake mix for preparing pancakes per day = 1 cup…

Q: Human blood typically contains 1.04 kg/L of platelets. A 7.29 pints of blood would contain what mass…

A:

Q: A 12-oz vanilla milkshake at a fast-food restaurant contains547 Calories. What quantity of energy is…

A: 1 calorie = 4.2 joules

Q: The American Heart Association recommends that healthy adults limit dietary cholesterol to no more…

A: The number which converts one unit to another is called as conversion factor. One unit is converted…

Q: A blood sample of 2.81 milliliters is collected from a patient to be anaylzed for a platelet count.…

A: We know that,1 Kg = 1000g1 L = 103 milli L⇒ 1ml = 11000LGiven,Platelet Density of human blood = 1.04…

Q: An 18 g sample of water is decomposed into 2g of hydrogen gas and 16 g of oxygen gas. What masses of…

A:

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

A:

Q: When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 21.6 gg of carbon…

A: 1) Write the balanced chemical equation for the given chemical reaction. 2) Identify the limiting…

Q: Suppose a student places a beaker on his balance and does not tare it. Then, he adds three…

A: The data given is,   Before After distilled water 57.160 g 70.990  g sodium acetate 70.990…

Q: What is the reason behind this? Inorder to measure the temperature of a object accurately, simple…

A: Temperature is the property that is related to the amount of heat that is present in an object. The…

Q: 9. Which of the following statements does not describe a physical property of chlorine? A) Chlorine…

A: 9. Physical properties - Properties that can be measured without changing the identity of a…

Q: A 355 g sample of water goes 85 degrees C to 42 degrees C. Calculate the amount of heat energy (in…

A: Given: Mass of water, m =355 g Initial temperature, T1=85oC Final temperature, T2=42oC The specific…

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

A:

Q: A 100g of water is mixed to 150g of alcohol (ρ = 0.76 g/ cm3 ). Calculate the resulting density of…

A: we know density is defined as the mass of substance upon volume density=massvolume

Q: Prior to hosting an international soccer match, the local soccer club needs to replace the artifical…

A: Given: Length of the field = 0.100 km Width of the field = 0.074 km  Cost of grass turf =$9.00 / m2

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: A sample of urine has a density of 1.105 g/cm3. What is the mass of 0.255 L of this urine?

A:

Q: What volume of water (in mL), initially at 62.9 °C, needs to be mixed with 270 mL of water,…

A: Let the mass of water initially at 62.9oC (Sample A) be m. When this amount of water is mixed with…

Q: density of water initial mass of erlenmeyer flask 118.957 g final mass of erlenmeyer flask 128.896…

A:

Q: density of water initial mass of erlenmeyer flask 123.221 g final mass of erlenmeyer flask 133.203…

A: In question Following informations given -   Initial mass of erlenmeyer flask = 123.221 g Final mass…

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.