A 4.00 L flask contains 2.33 g of helium at 1520 mm Hg. What is the temperature of the gas? 24.3 K 41.8 K 127 K 167 K 1.27 x 105 K

Q: Explain the difference between a pure chemistry and an applied chemistry.

A: Chemistry can be defined as branch of science  that deals with chemical composition of…

Q: difference between physics and chemistry

A: Physics looks for unifying principles; chemistry often focuses on the particulars. Chemist has an…

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: Complete the following conversion. 55 cL = ? nL

A: We have to convert 55 cL to nL  "c" denotes "centi" which is 1/100th part or 10-2 part  Hence the…

Q: physical changes Protein hydrolysis                                                    wax melting…

A: Classify the following as chemical or physical changes. Protein hydrolysis…

Q: 1/0.299=0.00495 * 440 + 1/b

A:

Q: A student determines the density of a metal to be 8.55g/cm3. If the theoretical value is 8.91g/cm3,…

A:

Q: sciences, sprang originally from delusions and superstitions, and was at its commencement exactly on…

A: Chemistry is the scientific study of the properties and behavior of matter. It is a natural science…

Q: <ey

A: The question is based on the concept of organic synthesis.We need to synthesize the product using…

Q: How many nL are there in (3.67x10^3) cL

A:

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: write a one-sentence definition for each of the following chemistry and chemical

A: Chemistry is a branch of science that concerned with the substances of which matter is composed,…

Q: Classify each of the following as an element (E), a compound (C), or a Mixture (M).   14K gold pure…

A: Answer  Classify each of the o following as an element(E) a…

Q: Choose the pure substance from the list below. O tea O a casserole O mercury O sugar water O…

A: To identify: Pure substance among the given options.

Q: Carbon tetrachloride has a specific gravity of 1.590. How much would 45 gal of carbon tetrachloride…

A: Density = mass / Volume  We know that, Specific Gravity (S.G) = Density of compound / Density of…

Q: An electric current of 52.0 mA flows for 6,0 seconds. Calculate the amount of electric charge…

A:

Q: The answer to  6.626*10^-34 Js (7.40*10^6 m/s)(9.11*10^-28 g)  is  9.83*10^-17 g right? That's the…

A: Here, we have to calculate the given values.

Q: How do I know the number of significant figures if the decimal notation is 8,725 km and the scientic…

A:

Q: Given the structure below, what is the number of relevant resonance structures in which a negative…

A: The Lewis structure or molecular skeleton is also known as the electron dot structure. It is the…

Q: Ozone is a pollutant in the lower atmosphere, but part of the protective shield against UV light in…

A: We have to classify the following properties of ozone as chemical or physical 1) Bluish color 2)…

Q: Which of the following is an element: Brass Zinc Steel             D, Bronze

A: An element is the simplest form of pure substance. On the other hand, a mixture is made up of…

Q: Convert 1134 micrograms/cubic meter to ppm

A: The question is based on the concept of dimension analysis.We need to convert given concentration in…

Q: Which of these are key factors in a scientific community? O age O nationality O collaboration and…

A: Key factors in a scientific community.

Q: A prescription of antibiotics for a 30lb child says to give 100mg three time daily. Is the dosage…

A: Here we need to find out Is it safe for a child of weight 30 lb to take 100 mg antibiotics three…

Q: Complete the following table. Be sure each of your answer entries has the correct number of…

A: Here, we have to convert the energy values as required to fill the table.