Adolfosbaby
27.10.2021 •
Chemistry
Trong dung môi là nước, aniline hấp thu bước sóng
280nm với ε = 1430 l.mol-1.cm-1. Nếu muốn pha chế
100mL dung dịch aniline có độ truyền suốt 30% đối
với bức xạ trên thì phải cân bao nhiêu gam aniline
(C6H5NH2
) nguyên chất, (dùng cuvet đo có l = 1cm).
Solved
Show answers
More tips
- A Animals and plants Unraveling the Mystery of Loch Ness: What Does the Loch Ness Monster Look Like?...
- L Leisure and Entertainment Should You Buy a Ceramic Knife?...
- C Computers and Internet How to easily and quickly disable Firebug in Gmail and Google Docs...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
Answers on questions: Chemistry
- C Chemistry Which has a higher energy density Charcoal Wooden splint...
- C Chemistry What is the Bronsted-Lowry definition of a base? (Answer s B) - compound that donates protons - compound that accepts protons (right answer) - substance that increases...
- C Chemistry How many moles of N2 is 224 L of N2?...
- C Chemistry Determine the [OH−] of a solution that is 0.150 M in F−....
- C Chemistry Iron metal reacts with hydrochloric acid as follows: 2Fe(s) + 6HCl(aq) + 2FeCl3(aq) + 3H2(g) If 2.40 mol of iron react with excess HCI, and 2.00 mol of H2 are collected,...
- C Chemistry The diagram shows molecules moving across a selectively permeable membrane. The smaller circles represent salt molecules, and the dashed line represents the membrane....
- C Chemistry What is the percent composition of Fe(iron) in FeO3? (Round the answer to the nearest whole number percent. You must enter the answer with the percent sign: Ex 30%)...
- C Chemistry Aline in the hydrogen spectrum occurs at 434 nm. what is the frequency of this radiation in sec -1...
- C Chemistry How does temperature affect the keq of a reaction?...
- C Chemistry When dissolved in 1000 g of water, which chemical compound will produce a solution with the greatest freezing point depression? a) 5.0 g of sodium chloride (nacl) b)...
Ответ:
The theme of "Abuela Invents The Zero" is selfishness.
Explanation: Constancia only thinks about herself. She doesn't want to be seen with her family because she will be embarrassed. She won't even help her lost grandma in church because she doesn't want to be made fun of at school.