How many quarters do you need to make a 10.0 ft high pile of quarters? The thickness of a quarter is 1.75 mm. [1 ft = 0.3048 m]
10ft high pile of quarters
10*0.3048m = 3.048m
= 3.048*1000mm
= 3048mm
The thickness of quarter = 1.75mm
no of quarters = 3048/1.75 = 1741.7 >>>>answer
How many quarters do you need to make a 10.0 ft high pile of quarters? The...
this is all the information given
CHEM-C 105 Principles of Chemistry l Worksheet 1 Ch. E and Ch. 1 Mrs. Brandon 7questions, 40points Answer each of the following questions, being sure to show all work (using method) and express all answers to the correct number of significant figures. Answers must either be handwritten or entered using an equation editor. Your score will be scaled to 50 points. Upload your solutions as a single Word or PDF file to the Assignments...
1) How many milliliters of 0.20M PMSF stock solution do you need to make 80 mL 1.2 mM PMSF solution? 2) What is the [H+] (in M) if the pH is 2? 3) What is the [OH-] (in M) if the pH is 12.5 (the digits before the decimal point in a logarithm are not significant figures)?
How many grams of NaOH do you need to make a IM solution? How many grams of NaOH do you need to make a 3M solution? How many grams of C,H, Nao, do you need to make a IM sodium acetate buffer? How many grams are needed to make 50 mL of 25% HCI? How much water is needed if you are making 800 mL of 20% sodium hypochlorite (bleach) for cleaning a vessel?
Need major help
1. How many milligrams of Ruthenium-tris(2,2'-bipyridyl) dichloride [Ru(bpy)3] do you need to make one hundred microliters of a 100 mM solution?: 2+ The molecular weight of Ru(bpy)3 is 640.53 grams/mole. N. 2. How many microliters of the 100 mM [Ru(bpy)] solution do you need to make one milliliter of a 10 μM solution? 3. How many samples can we make from this stock solution, assuming one mL each of a 10 uM sample?
Discrete Mathematics with Applications by Susanna S Epps, 4th Edition Exercise Set 9.6 Problem 18 A large pile of coins consists of pennies, nickels, dimes, and quarters. a. How many different collections of 30 coins can be chosen if there are at least 30 of each kind of coin? b. If the pile contains only 15 quarters but at least 30 of each other kind of coin, how many collections of 30 coins can be chosen? c. If the pile...
QUESTION 5 How many grams of Tricine (MW = 179) would you need to make 300 mL of a 20 mM solution? QUESTION 6 How many grams of Tricine (MW = 179) would you need to make 50 mL of a 10 UM solution? QUESTION 7 How many grams of magnesium chloride (x6H2O) are contained in 250 mL of a 0.1 M solution? QUESTION 8 How many grams of sucrose (MW 342) are contained in 250 mL of a 0.1...
how many ways can you make 75 cents with quarters, dimes, and nickels
How many mLs of each would you need to make 50mL of solution Final concentration of solutes . Stock concentrations MgSO4 0.83 mM MgSO4 1 M CaCl2 0.9 mM CaCl2 1 M KHCO3 0.04 mM KHCO3 0.1 M NaHCO3 0.9 mM NaHCO3 0.5 M Ocean Salts 0.21 g/L Ocean Salts 21 g/L
At the 18th green of the U. S. Open you need to make a 23.5 ft putt to win the tournament. When you hit the ball, giving it an initial speed of 1.56 m/s, it stops 5.30 ft short of the hole.What initial speed do you need to make the remaining 5.30 ft putt?
1. how many grams og kcl do you need to make 50.0 ml and 2.45?