jevonewilliams3106
14.11.2019 •
Chemistry
Why do some elements go around in pairs?
Solved
Show answers
More tips
- H Health and Medicine Discover the Hidden Principles and Real Results of the Japanese Diet...
- H Health and Medicine Understanding Pregnancy Tests: What You Need to Know?...
- H Health and Medicine What Makes a Man a Man?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
- H Health and Medicine Why Wearing a Back Brace Can Be Beneficial During Back Strain?...
- S Sport When and Where Will the 2014 World Cup be Held?...
Answers on questions: Chemistry
- C Chemistry Một kim loại tạo với oxi hai oxit. Khi đun nóng 3 g mỗi oxit trong một luồng khí hiđro có dư, lượng nước lần lượt thu được là 0,679 g và 0,377 g. a/ Tính đương lượng...
- C Chemistry Design Report Design a Thermos It’s time to complete your Design Report. Save the lab to your computer with the correct unit number, lab name, and your name at the...
- C Chemistry UNIT 5 BALANCING EQUATIONS/TYPES OF REACTIONS Balance the following equations by putting Inc coefficients and state the type of reaction to the left of each number...
- C Chemistry Calcium-49, a radioactive isotope, has a half-life of 9 minutes. If an 80-gram sample of the isotope decays for 27 minutes, how many grams of the original sample...
- C Chemistry A weak monoprotic acid has molar mass 180 g/mol. When 1.00 g of this acid is dissolved in enough water to obtain a 300 mL solution, the pH of the resulting solution...
- C Chemistry The storage method used for radioactive wastes generated from fission nuclear reactors must be designed to last for hov long? months years centuries weeks arch...
- C Chemistry Briefly include a statement of purpose for this experiment, relevant conceptual background, and general equations. You must include discussion on [FeSCN2+]std and...
- C Chemistry The graph below is the curve for the titration of a strong acid with a strong base. pH 60 0 10 20 30 40 50 Volume of Base Added (mL) Which name is given to the point...
- C Chemistry Liquid mercury reacts with nitric acid to produce aqueous mercury(II) nitrate, nitrogen monoxide gas and water. The solution is acidic. Neither water nor nitrogen...
- C Chemistry The table below gives the numbers of protons, electrons, and neutrons in four atoms.|39AtomNumber of protons Number of electrons Number of neutrons39521240405 0393954440405120|Based...
Ответ:
8.2 x 023 molecules of N2O
Explanation:
Step 1 : Convert the given mass in grams to the number of moles. Use the formula:
Moles = mass in grams / MM
Where MM is the molar mass of the compound. To find the molar mass of N2O , consider the number of atoms of each element in the formula then multiply the number of elements with their atomic masses then finally add all the molecular weight.
Step 2 : Use the avogadro number to convert the moles to number of molecules .We know that 1 mole of any atom,molecule ,molecular compound,formula unit has 6.02 x 1023 atom,molecule,molecular compound or formula unit.
MM of N2O :
there are 2 atoms of N and 1 atom of O in N2O .
N = 2 X 14 = 28
O = 1 X 16 = 16
28 + 16 = 44 g / mol
Now , convert mass in grams to moles
Moles = 60 / 44 = 1.36
1 mole of N2O = 6.02 x 1023 molecules of N2O
1.36 moles N2O x 6.02 x 1023 molecules of N2O/ 1 moles N2O = 8.2 x 023 molecules of N2O
Making the answer 8.2 x 023 molecules of N2O