7. Convert the following (Show your work) () a. 75.14 µg/ml →ng/ul b. 743.2 µmol → nmol c. 55 ng → mg d. 8.2 µM → pmol/μL (recall: 1 M = 1 mol/L)

Q: the final answer is needed to be converted into pints?

A:

Q: 26.) Metallic mercury (Hg) reacts with oxygen (O2) in air when heated to form dark red brown…

A: The balanced reaction taking place is as follows: Molecular mass of Hg = 200.59 g/mol Molecular…

Q: An empty Erlenmeyer flask weighs 241.3 g. When filled with water (density = 0.997 g/mL), the flask…

A: Weight of empty Erlenmeyer flask = 241.3gWeight of flask + water= 489.1 gVolume of water=?Density of…

Q: 100.0 g of lead(II) nitrate is reacted with 50.0 g of potassium iodide (in plenty of water). How…

A:

Q: A patient is to receive 44 mmol of potassium phosphate dibasic (MW 174 mg). How many mg of potassium…

A:

Q: An allergen preparation requires adding 0.1 cL of an allergen solution to 2.5 mL of normal saline.…

A: Volume of allergen solution (V1) = 0.1 cLVolume of normal saline solution (V2) = 2.5 ml

Q: 1. On each graph, identify an indicator that could be used in the titration, and write the name of…

A: An indicator is a substance which is used to determine the end point of titration, it changes its…

Q: Which accurately shows the Law of Conservation of Matter (Mass)? A. When 2 oxygen molecules combine…

A: Law of conservation of mass states that mass can neither be created nor be destroyed although it can…

Q: 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt…

A: a. Given that weight of hydrated salt is 6.790 g and mass of anhydrous salt is found to be 4.501 g.…

Q: Read the data points from the graph and complete the table below. 25 20 15 10 0. 3. Submit

A:

Q: Brass is an alloy of copper and zinc. Varying the mass percentages of the two metals produces…

A: Mass of Yellow zinc = 135 g Brass = an alloy of Cu and Zn Yellow zinc = A brass (34-37)% Zn by mass…

Q: The radius of a barium atom is 217 pm. How many barium atoms would have to be laid side by side to…

A: Given that,radius of barium atom = 217 pm distance between one atom to another = 2.78 mm 1m = 1x1012…

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: 1. Consider a KCI (aq) solution that has a mass percent of 8.98 %. How many grams of KCl are there…

A: GIVEN: Mass percent of KCl solution=8.98 %.Mass of solution=100 gm To Find: grams of KCl by using…

Q: Please answer question number 2  correctly with the correct answer. there is a picture of an example…

A: 32.0 g/mol approx. is the molar mass of dioxygen (O2) gas and there are 6.022x1023 of molecules of…

Q: Chemistry Is The Central Science of Matter... & Energy! - The Universe Matter: what has mass and…

A: The given example of matter or pure energy is given below.

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.