A student uses a stoppered 25.0-mL volumetric flask to determine the density of a liquid. The mass of the empty flask and stopper was 25.1841 g. The mass of the stoppered flask filled with liquid up to the scratch mark was 45.0379 g. Calculate the density of the liquid in appropriate units and with the correct number of significant figures. Show work.

Q: Suppose that 240 mL of water changes in temperature from 57.62°C to 56.32°C. What is qwater in…

A: Dear student I have given answer to your question in the image format.

Q: In the table below, use your most important scientific instrument (your calculator) to fill in the…

A: Since you have asked a question with multiple sub-parts we will solve first three sub-parts for you.…

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 13.6 mL sample of polystyrene used in a styrofoam cup weighs 0.222 g What is the density of…

A: Given,  Volume of polystyrene = 13.6 mL  Weight of the polystyrene = 0.222 g  Density of polystyrene…

Q: Question 9

A: An intensive property can be defined as the bulk property or a physical property of a given system…

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

A:

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: Convert 6.4 x 10^-28 j-s/ kg to erg- min /lb. Note that “j” means “ joule” - it is one of the units…

A: 6.4*10-28 j-s/Kg to erg-min/lb Conversion required : 1 J = 107 ergs 60 sec = 1 min => 1 sec =…

Q: property? Extensive properties defin quantity. Intensive properties define unique characteristics…

A: 16-B 17-B 18-I

Q: The goose has a mass of 19.5 lb (pounds) and is flying at 9.90 miles/h (miles per hour). What is the…

A: Given ,             Mass of the goose (m) = 19.5 lb (pounds)                            Velocity…

Q: Carry out each of the following calculations, paying special attention to significant figures,…

A: Significant figures are the number of digits in a value, often a measurement, that contribute to the…

Q: Balance A: 15.746 g Balance B: 15.75 g Balance C: 15.7 g When the liquid was added to the beaker, a…

A: Given data Volume = 20.10 mL Balance mass A 15.746 g B 15.75 g C 15.7 g…

Q: 8. A company delivering crates of soap ships their cargo on pallets. A single pallet contains 6.00…

A: 8) Given: Number of pallets = 2 pallets Number of crates in 1 pallet = 6.00 crates. The number of…

Q: A student adds 3.993 grams of salt to a beaker and then adds an additional 69.220 grams of water to…

A: Percent mass: Percent mass of a compound in a solution is defined as the ratio of the mass of the…

Q: In a laboratory, you determine that the density of a certain solid is 5.23 x 10 6 kg/mm Notice that…

A: Introduction: Density: Density is defines as the mass per unit volume of a substance. Those…

Q: Dennis obtained a clean, dry stoppered flask. He determined the mass of the flask and stopper to be…

A: Given data,Mass of flask and stopper=32.634gMass of water+flask+stopper=59.479gDensity of…

Q: How is kinetic and potential energy differ?  How are they related?  Please cite an everyday…

A: When an object is at rest the body is said to possess potential energy. in another case when the…

Q: Create a properly labelled and formatted scientific table of data for the relevant measurements…

A: The data given is, 1) Mass of empty beaker = 50.45 g. 2) Mass of beaker and water = 81.26 g. 3) Mass…

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

A: As our Website policy we can solve only one question per post. Hence, please post question number 4…

Q: Complete the calculation below, and in the box record your answer to the correct number of…

A: By applying rules of significant figures we can figure out the result in correct number of figures.

Q: block of wood weighs 64.02 g and has the following dimensions: length of 15.0 cm, width of 11.0 cm,…

A: A block of wood weighs 64.02 g and has the following dimensions: length of 15.0 cm, width of 11.0…

Q: A subcompact car with a mass of 1.60×103 kg and a loaded dump truck with a mass of 1.60×104 kg are…

A: Since ,         kinetic energy KE=12mv2where ,           m=mass of moving particle…

Q: A rectangular block of iron metal weighs 235.8g. The dimensions of the block are 8.4 cm by 5.5 cm by…

A: We have to determine the density of the iron block.The mass of the iron block is given so we have to…

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: How long a trip, in kilometers, can be made on one full tank of gasoline? Express your answer to two…

A: Two numerical problems based on unit conversion, which are to be accomplished.

Q: The engine in a boat has a displacement of 350in^3 what is the displacement of this in ft^3 in cm^3…

A:

Q: Now suppose each object was weighed. The results are given in Table 1. Fill on the last column of…

A: During lab work, we weight the object on weighing balance. The platform on which weight is taken…

Q: The average adult human burns 2.00 × 10³ kcal per day in energy. What is this rate in kJ per hour?

A: Given, energy burns by human in a day=2×103 kcal  In a day, there are 24 hours.  In 1 hour,energy…

Q: determine that a 5.0 mL solution of CuSO4 has a mass of 5.76g. The solution is evaporated to dryness…

A: Volume of solution = 5.0 ml Mass of CuSO4 solution = 5.76 gm Mass of solid after evaporation  = 1.01…

Q: 20. An object with a mass of 6.3 kg has a force of 7.1 newtons applied to it. What is the resulting…

A: The answers of the above questions are given in following steps.

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

A: Here you should understand that if you have nothing in the beaker it is the empty weight of beaker.

Q: A cylindrical glass tube of length 25.75 cm and radius 2 cm is filled with argon gas. The Empty tube…

A: Given: Length is 25.75 cm. Radius is 2 cm. Weight of empty tube is 186.25 g. Weight of tube with Ar…

Q: The pretzels in a bag of pretzels have a mass of 238.5g and costs $1.49. There are 18 pretzels in…

A: mass of pretzel bag = 238.5 gCost of pretzel bag   = $ 1.49No of pretzels in 1 bag = 18

Q: Carry out the following mathematical operations involving numbers that are expressed in scientific…

A: As per our guidelines only one question is solved. Please repost the unanswered questions again.…

Q: 5. A technologist collected the following data for their Class A volumetric flask: Table 1:…

A:

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: Given the following data, calculate the percentage of salt in the original mixture.  Include the %…

A: Mass percentage is the individual percentage of any one component of the mixture present in 100 % of…

Q: In a calorimetry experiment in a Chemistry for Engineers Laboratory class, a 12.9 - g sample of…

A: The addition of a certain amount of heat to a substance will alter its temperature. The change in…

Q: Consider the two spheres shown here, one made of silver and the other of aluminum. The spheres are…

A: The potential energy of an object is defined as the energy possessed by an object that rose to a…

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: Four research teams measured the density of a new alloy, and what each team wrote in its team…

A: In this question, we are provided with experiment results by to research teams for the measurements…

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: The SI unit for energy is the joule (J), which is equal to the kineticenergy possessed by a 2.00-kg…

A: Conversion of velocity from m/s to mph is done in the following way, m to km, km to mi, and s to h,…

Q: Because of the high heat and low humidity in the summer in Death Valley, California, a visitor…

A: Given that, 1 quart = 0.946 L 1 mi = 1.61 km 1 g water = 1 mL water

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: A pipe leaks water at a rate of 1.24 mL/s. What is the rate of the water leak in L/hr?

A: Given, rate of water leak = 1.24 mL/s We need to convert the unit of water leak from mL/s to L/hr.

Q: If you are traveling to nevada and it takes 458.2 miles to get there from Coalinga, how fast will…

A:

Q: The goose has a mass of 18.6 lb (pounds) and is flying at 9.40 miles/h (miles per hour). What is the…

A: Mass of Goose (m) = 18.6 pounds Velocity of Goose (v) = 9.40 miles/hr

Q: Which of the following objects has the greatest kinetic energy?a 1,000-kg carmoving at 50 km/h

A: The given data: Mass, m= 1000 Kg  Velocity, v = 50 km/hr