If I gave you 9 moles of pennies (6.02 × 1023) but with the condition that you had to spend them at a rate of 1 billion dollars, $1,000,000,000.00, a second, how many decades would your pennies last you? Note: Your decades should carry at least 3 significant digits, in case you decide to round your answer.

If I gave you 9 moles of pennies (6.02 × 1023) but with the condition that you had to spend them at a rate of 1 billion dollars, $1,000,000,000.00, a second, how many decades would your pennies last you? Note: Your decades should carry at least 3 significant digits, in case you decide to round your answer.

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter3: Molecules, Moles, And Chemical Equations

Section: Chapter Questions

Problem 3.83PAE: 3.83 For the reaction of nitrogen, N2, and hydrogen, H2, to form ammonia, NH3, a student is...

See similar textbooks

Similar questions

Convert (7.8x10^24) molecules of sodium chloride, NaCl (OR N a C l) to grams of sodium chloride. Avogadro's Number is (6.02x10^23). You must enter your answer in scientific notation. For example, 25 would be expressed as 2.5x10^1. Note: Your answer is assumed to be reduced to the highest power possible.
This is the chemical formula for talc (the main ingredient in talcum powder): Mg; (Si,O3),(OH), 2 2. An analytical chemist has determined by measurements that there are 2.67 moles of magnesium in a sample of talc. How many moles of hydrogen are in the sample? Be sure your answer has the correct number of significant digits.
Most chemistry laboratories have balances that can weigh to the nearest milligram. Would it be possible to weigh 5.31E+18 molecules of octadecane, C18H38, on such a balance? Enter your answer in the form 1.00E2 for scientific notation. mass of 5.31E+18 molecules C18H38 = i g. Thus, it is v to weigh 5.31E+18 molecules of C18H38. possible not possible
You have a mole of ping pong balls and want to ship them to a near-by town. You have packing boxes that measure 24 inches by 24 inches by 18 inches. How many boxes do you need to pack up all the ping pong balls? The radius of a ping pong ball is 20 mm. If you make any approximations or assumptions, please list them.
What is the mass of (9 * 10 ^ 0) number of water molecules ? Report your answer 3 significant figures and include the unit in your answer. Note: Your answer is assumed to be reduced to the highest power possible.
Most chemistry laboratories have balances that can weigh to the nearest milligram. Would it be possible to weigh 5.88E+18 molecules of octadecane, C18H38, on such a balance? Enter your answer in the form 1.00E2 for scientific notation. mass of 5.88E+18 molecules C18H38 = i g. Thus, it is v to weigh 5.88E+18 molecules of C18H38. bộ
What is the mass (in kg) of 6.89 × 10^25 molecules of carbon dioxide? Give the answer as a number. The units are understood to be kg.
There is one mole of water in the beaker. A student measured the weight of the 1 mole of water of 18.02 g after using scale. Calculate the molar mass of water (H2O) in grams using your periodic table. [1 amu = 1.6606×10−24?1.6606×10−24g ]. How does your answer compare to the student's measurement? What can you conclude?
320.4 grams of isomaltitol, C12H24O11, was combusted in a furnace completely in an excess oxygen. The products of this reaction are liquid water and gaseous carbon dioxide. How much water (in kg) do you expect from this reaction assuming that all of the isomaltitol reacts? Enter your numeric answer in the units of kg. Do not enter the unit. Use enough significant digits to prevent rounding errors. Hint: balance the reaction first. Recall that 1 kg = 1000 g.
Use the molar mass of Ca3(PO3)2 to calculate the moles of oxygen in 6.66 x 106 g of CP. Give your actual number. Use scientific notation with E representing the exponent and no spaces. For example, 1 mol = 6.022 x 1023 would be 6.022E23. (6.66 x 106 g CP)(––––––––––) = ____________ mol CP (––––––––––) = __________ mol O
A researcher is using 7.20 x 1023 molecules of chlorine gas (Cl2) in an experiment. How many grams of chlorine is the researcher using? Remember to include units (abbreviated appropriately) and the substance in your answer. Round your answer to the nearest 0.01.
A tablet of Mylanta antacid contains 0.300 g Mg(OH)2 and 0.200 g Al(OH)3. For the blanks in this question: Report here only your numerical answers (without units), if the value is less than zero as a decimal (not in scientific notation), to the correct number of significant figures. Mg(OH)2 (molar mass: 58.32 g/mole) Al(OH)3 (molar mass: 78.00 g/mole) How many moles Mg(OH)2 are present in the tablet? How many moles of Al(OH)3 are present in the tablet? How many moles of HCl are required to neutralize the Mg(OH)2 in the tablet? Start this question by using your rounded answer from #1. How many moles of HCl are required to neutralize the Al(OH)3 in the tablet? Start this question by using your rounded answer from #2. How many moles of HCl acid will be required to neutralize both the Mg(OH)2 and the Al(OH)3 in the tablet? Use your rounded answers from #3 and #4 to answer this question. How many milliliters of 0.200 M HCl can be neutralized by one tablet? Use your rounded…