Thallum-201 is a radioisotope used in brain scans. If the recommended dose is 30 mCi and a vial contains 55 mCi in 45 mL, how many militers should be injected? Express your answer to two significant figures and include the appropriate units

Q: A student determines that 4 widgets weighs the same a 7 thingamygigs. If 9 thingamygigs weighs…

A: Given data: Mass of 9 thingamygigs = 15.62 g

Q: A Honda Accord gets 24 miles per gallon in the city and is estimated to emit 7 tons of CO2 per year.…

A: Given that 7 tons of CO2 emits from Honda Accord per year. 1 ton = 2000 pounds 1 tree absorb 30…

Q: what is the mass of an 5.44x10^25 of gold?

A:

Q: Calculate the mass of dinitrogen tetroxide (N₂O4) that contains a trillion (1.0 × 10¹2) nitrogen…

A: We have to predict the mass of dinitrogen tetroxide.

Q: An AM station broadcasts rock music at 8.70 × 102 on your radio dial. Units for AM frequencies are…

A: Wavelength and frequency are inversely proportional to each other The relation between Wavelength…

Q: Matter or pure energy? soda taste soda color air humidity scent x-rays

A: The given examples can be classified as follows:

Q: the liquid 2,3 butanedione has a density of 0.981 g/ml at 18.0 degree celcius.If a 103 gram sample…

A: The density of a substance is defined as a mass of a unit volume of the substance. The density of…

Q: A male patient has been diagnosed with diminished thyroid function. His doctor prescribes a dosage…

A: A male patient has been diagnosed with diminished thyroid function. His doctor prescribes a dosage…

Q: Consider a block of wood having a volume of 125 cm³. If the clock of wood burns at a rate of 15…

A: Calculation of mass of woodblock: The volume and density of woodblock are given. By using this…

Q: <-5 A chemist adds 0.80 L of a 2.5 x 10 μM mercury(II) iodide (Hg1₂) solution to a reaction flask.…

A: We know the formula for the calculation of molarity-Or we can also write-

Q: Consider a block of wood having a volume of 125 cm3. If the block of wood burns at a rate of 15…

A:

Q: Please report your answer in scientific notation in the provided boxes. Che Although it is not…

A: Mass was lost in this process, m=1.06×10−9gram   If you need answer with 10-10 then it will be,…

Q: A virus particle has an approximate volume of 5.20 x 106 nm3 and an approximate mass of 1.00 fg.…

A:

Q: What is the volume and thickness of the aluminum foil given 0.405g (mass), 9.5 (length), 9.6…

A: Given:   The mass of aluminum foil is 0.405 g. The length of aluminum foil is 9.5 cm. The width of…

Q: write the scientific notation of 204.5 x 10^21 and 2 x 10^25

A: In the given question, we have to write the values in the term of scientific notation.

Q: A woman weighs 59.0 kg and is given 720. mg pills of a drug The concentration of drug inside the…

A: Half-life = 3hrweight of women= 59 kgmass of pills = 720mg∴ initial concentration of pill, N∘=…

Q: Under certain conditions, water can be separated into oxygen and hydrogen gases according to the…

A: Given: Mass of hydrogen produced = 112 g. And mass of oxygen produced = 888 g.

Q: A cube has a volume of 200 cubic centimeters. Calculate how many elements can fit inside the cube if…

A:

Q: Which of the following scenarios is (are) incidence(s) of human mistake? Multiple answers Group of…

A: Human mistakes are non-intentional mistakes which led to the diversion in the desired results of the…

Q: You need to add 100mg of the chemical, β-mercaptoethanol, to a laboratory reagent. The density of…

A:

Q: in the movie Goldfinger, James Bond foils a plot to break into Fort Knox. 007 does some quick mental…

A:

Q: A patient weighs 110pounds.  The daily recommended safe dose range for a certain drug is…

A: Given that : The weight of the patient = 110 pounds The daily recommended safe dose range for the…

Q: In the number 723.4, which digit is estimated? 02 0 3 01 4

A: The given number is = 723.4This number contains a decimal place.

Q: A patient is treated with hydroxychloroquine for malaria. The drug is given based on the body mass…

A: Given, A patient is treated with hydroxychloroquine for malaria. The drug is given based on the body…

Q: Tracy is receiving lanoxin every 8 hours. She weighs 63 kg. The dose range for this drug is 0.030 to…

A: Given weight of Tracy is 63 kg.  Dose range of lanoxin is 0.030 to 0.060 mg/kg every day. The…

Q: You have to walk 19352 mi from the crash site of your Mars spacecraft to the interplanetary mars…

A: 1mi = 1.6km 2.2lb = 1kg

Q: A radioactive substance decays according to A = Age-0.0049, where Ao is the initial amount and it is…

A:

Q: What is the volume of 3.67 kg of mercury at 25 C? You can use any reliable reference to look up the…

A: Given: Mass of mercury (Hg) at 25oC = 3.67 kg Density of mercury (Hg) at 25oC = 13.534 g cm-3

Q: I Review I Constants I Periodic Table A hybrid electric vehicle has an EPA gas mileage rating of 49…

A: EPA mileage of the car is 49mi/gal 1mile=1.60934km 1gal=3785.411ml

Q: An electric current transports 780. uC of charge in 31.0 seconds. Calculate the size of the electric…

A: The charge transport in a unit of time is known as electric current. The current is calculated by…

Q: What will be the cost in dollars for photocopies if you have 32 pages in a booklet you need 175…

A: No. of pages in a booklet = 32No. of booklets = 175Cost of each copy = 4.5 cents

Q: Scientists at the University of Idaho Parma Research and Extension Center in Parma, Idaho have…

A: Given: Amount of starch has produce = 2.50×103 kg percent of starch in potato = 1.83 % let 1.83 kg…

Q: A student in CHEM 1110 claimed that if one took three baggies and put 6 grams of sugar in the one…

A: No this is not the correct arrangement  Reason  As sugar is dissolved in water so when we release…

Q: What is the edge length of a cube whose mass for aluminum is 3.44g? Density is 2.70 g/cm3 and Volume…

A: In this question, we want to determine the value of edge length.  You can see details Solution how…

Q: The radioactive isotope thallium-201 is used in medical imaging as indicated on the table above. If…

A:

Q: How many 150 mgmg tablets should a 42 lblb child take to receive the dosage of 8.4×10−3 g/kg?

A:

Q: Hospital X-ray generators emit X-rays with wavelength of about 15.0 nanometers (nmnm), where…

A: The relation between wavelength and Energy of X-rays is given below: Energy=Planck's constant×Speed…

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.