A house has 4 rooms to paint and each room has an average of 750.0 ft2 to paint. if 1 quart can of paint covers 125 ft2 how many gallons of paint do I need to order to paint all the rooms?

Q: A carpet sells for $20.99 per square yard. What is the price of the carpet per square meter? $ /m²…

A: Given: Rate of carpet = $ 20.99 /yard2.

Q: Questions 1.39

A: The reaction is as follows,

Q: International computer communications are often carried by optical fibers incables laid along the…

A: Given, the mass of optical fiber = 1.19 x 103 lb/m            Length of each strands optical fiber…

Q: Lithium is the least dense metallic element. Its density is 0.534 g/mL. What is the mass of lithium…

A: Given : Density = 0.534 g/mL Volume = 1.00 in3 Convert in3 into mL as follows. 1 in3 = 16.3871 mL

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

A:

Q: The distance from San Francisco to Los Angeles is approximately 385 miles. You and your friends…

A: Total distance between san francisco to los angeles = 385 miles Amount of Water have to drink per km…

Q: A bank teller is asked to assemble $1 sets of coins forhis clients. Each set is made up of three…

A: Given that : Set of coins =6 coins that are three quarters, one nickel, and two dimes. Mass of one…

Q: The volume of water used for crop irrigation is measured in acre-feet, where 1 acre-foot is the…

A: (a)  Since 1 acre = 43560 ft21 acre-foot = 1 acre × 1 foot So, 1 acre-foot =  43560 ft3So, cubic ft…

Q: You are renting a car and you wish to travel a distance of 850. miles. If the car has a mileage of…

A: Given: Distance to be travelled = 850 miles Mileage of car = 10.1 km/L To calculate: The Gallons of…

Q: A 9.55g sample of a solid was placed in a 15.00-ml flask. The remaining volume was filled with…

A: Density of a substance is defined as mass per unit volume.It is given by the formula

Q: What is the mass of a golf ball traveling at 82.0 ms 1? The rest mass of a golf ball is 45.9 g, as…

A:

Q: A motorcycle’s fuel tank has a capacity of 0.0221 kL and the motorcycle can travel 15.0 km/L. 1.…

A: The solution is given below -

Q: 14K yellow gold is an alloy that contains gold, copper and silver. A 14K gold ring contains 6.90g of…

A:

Q: A chemist must prepare 125. mL of 865. mM aqueous barium chlorate (Ba(CIo,)) working solution. He'll…

A: Moles of both solutions will be same. M1 × V1 = M2 × V2

Q: A chemist wants to make 5.5 L of a 0.330 M CaCl2 solution. Part A What mass of CaCl2 (in g) should…

A: Generally molarity is calculated by using following equation.

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

A: Given : Length of field = 0.101 Km Width of field = 0.065 Km And cost of turf per m2 = $ 7.00 per m2…

Q: Some iron wire weighing 5.6g is placed in a beaker and covered with 15.0g of dilute hydrochloric…

A: It is given that;Mass of iron wire in the beaker = 5.6 gMass of dilute hydrochloric acid in the…

Q: In the combustion of ethanol, 20.50 g of carbon dioxide gas was produced, What is the volume in mL…

A:

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

A: Given : The dimensions of field = 0.106 Km by 0.071 Km Cost of turf = $ 9.00 per m2

Q: Nurses are often required to calculate dosages. That is, they must check the order that a doctor has…

A:

Q: A chemist prepares a solution of zinc nitrate by measuring out 78. umol of zinc nitrate into a 100.…

A: Given: The number of micromoles of zinc nitrate present = 78 μmol The volume of the solution = 100…

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: The values are given as follows:

Q: emist prepares a solution of calcium sulfate (CaSO,) by measuring out 0.482 umol of calcium sulfate…

A: Moles of calcium sulphate=0.482×10^-6mol Volume=250 mL= 0.25 L  Concentration of calcium sulphate=?…

Q: A certain antihistamine is often prescribed for allergies. A typical dose for a 100​-pound person is…

A: Given  For a 100 pound person  Dosage = 20 mg/6hrs

Q: A gas company charges $1.30 for 15.0 ft³ of natural gas. What is the cost in $ per L?

A:

Q: A chemist samples a river's water to measure the amount of fertilizer runoff from the area farms. In…

A: PPM and the PPB are units applied in atmospheric chemistry to represent the concentration of the…

Q: 1. How many quarts/min is 14.0 L/hr?

A: 1 L= 1.057 quarts 1hour= 60 minutes

Q: What is the mass of a golf ball traveling at 71.8 ms1? The rest mass of a golf ball is 45.9 g, as…

A: 45.9 g is the answer

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: The mass of water in the pool is calculated as,

Q: Franklin was performing an experiment by combining hydrochloric acid and sodium hydroxide. He…

A: The basis to answer this question is the law of conservation of mass.

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

A:

Q: A farmer applies 1405 kg of a fertilizer that contains 10.0% nitrogen to his fields each year.…

A: . Total amount of Fertilizer=1405 kgNitrogen source is the fertilizer .→urea is the fertilizer…

Q: Calculate the volume in mL of the sodium nitrate stock solution that the chemist should pour out

A:

Q: A chemist must prepare 875. ml. of 335. M aqueous copper(II) fluoride (Cul) working solution. She'll…

A:

Q: Aqua regia is an acid mixture that can be used to dissolve gold. Aqua regia has a density of 1210.…

A:

Q: A jet airplane reaches 675./kmh on a certain flight. How long does it take to cover 291.m? Set the…

A: Given that the velocity is 675 km/h. The given velocity has to be converted to m/h

Q: A certain solution is 4.40% by mass in calcium carbonate (CaCO3) if the density of the solution is…

A: Given that: Mass percent of calcium carbonate = 4.40% Density of the solution = 1.02 g/mL Volume of…

Q: You are renting a car which is reported to achieve 12.5 km/L. How many miles will you be able to…

A: Given : car has an average rate of fuel consumption = 12.5 Km/L hence it means, per litre of the…

Q: You are renting a car which is reported to achieve 12.1 km/L. How many miles will you be able to…

A: Conversion of 12.1 kilometer per liter to mile per gallon:

Q: 1.104 A seientist elaims to have found a treatment for ear infections in children. All the patients…

A: Given: Scientist claim to have treatment of ear infection .  Patients were given treatment and it…

Q: A 9.55-g sample of a solid was placed in a 15.00-mL flask. The remaining volume was filled with…

A: Given: Mass of solid sample = 9.55 g Volume of flask = 15.0 mL Mass of solid and benzene = 19.33 g…

Q: what is the volume of a single drop of substance if 10 drops is equal to 1.549cm3?

A: Given that the volume of 10 drops of substance is 1.549 cm3. By relating this condition volume of…

Q: The price of a ream of paper is $2.90. There are 250 sheets of paper in a ream. If a sheet of paper…

A:

Q: You are renting a car which is reported to achieve 10.1 km/l how many miles will you be able to…

A: Conversion of units: 1 gallon = 3.785 L 1 km = 0.62 mile

Q: 0.787 M 0.730 M O 0.763 M 0.270 M

A:

Q: mixed

A: According to the question, we need to determine what is the volume percent of sodium hydroxide and…

Q: compound? element? solution? heterogeneous? pure substances? a. soda pop b. used motor oil freshly…

A: Compound is defined as two or more elements mixed together then compound formula Mixture is defined…

Q: An irregularly shaped rock weighs 268.42 kg. It is placed in a cylinder that had 50.6 L of water.…

A:

Q: To aid in the prevention of tooth decay, it is recommended that drinking water contain 0.900 ppm…

A: Formula used  ppm = (Mass of solute/mass of solution) 106 ppm = parts per million  density of water…

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.