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How many mol CuI（)will dissolve in 1.0 L of 0. 10 M NaI solution？
How many mol CuI(
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How many mol CuI(
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更多“How many mol CuI（)will dissolv…”相关的问题
Dinitrogen pentaoxide, N2O5, is the anhydride of nitric acid. It is not very stable, and in the gas phase or in solution with a nonaqueous solvent it decomposes by a first-order reaction into N2O4and O2. The rate equation is
v=kc(N2O5)
At 45℃, the rate constant for the reaction in carbon tetrachloride is 6.22×10-4s-1. Ifthe initial concentration of the N2O5in the solution is 0.100mol·dm-3, how many minuteswill it take for the concentration to drop to 0.0100 mol·dm-3？
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Much unfriendly feeling towards computers has been based on the fear of widespread unemployment resulting from their introduction. Computers are often used as part of automated(自动化的) production systems requiring a least possible number of operators, causing the loss of many jobs. This has happened, for example, in many steelworks.
On the other hand, computers do create jobs. They are more skilled and better paid, though fewer in number than those they replace. Many activities could not continue in their present form. without computers, no matter how many people are employed. Examples are the check clearing (交换) system of major banks and the weather forecasting system.
When a form. introduces computers, a few people are usually employed in key posts (such as jobs of operations managers) while other staff are w-trained as operators, programmers, and data preparation staff. After the new system has settled down, people in non-computer jobs are not always replaced when they leave, resulting in a decrease in the number of employees. This decrease is sometimes balanced by a substantial increase in the activity of the frim, resulting from the introduction of computers.
The attitudes of workers towards computers vary. There is fear of widespread unemployment and of the takeover of many jobs by computer-trained workers, making promotion for older workers not skilled in computers more difficult.
On the other hand, many workers regard the trend toward wider use of computers inevitable.They realize that computers bring about greater efficiency and productivity, which will improve the condition of the whole economy, and lead to the creation of more jobs. This view was supported by the former British Prime Minister, James Callaghan in 1954, when he made the point that new technologies hold the key to increased productivity, which will benefit the economy in the long ran.
The unfriendly feeling towards computers is developed from 查看材料
A.the possible widespread unemployment caused by their introduction
B.their use as part of automated production systems
C.the least possible number of operators
D.the production system in steelworks
Which of the following is NOT clearly mentioned in this advertisement？
A．The way how you will get your degree.
B．Tuition price.
C．The hot fields you will be preparing yourself for.
D．The length of time it will take you to get a degree.
How will the man enter Ashley's office？
A．He will use a master key to open the door.
B．He will get Ashley's key from the woman.
C．He will ask the department's secretary for help.
D．He will force the lock with a hammer.
A．You vastly increase the chances for a successful hire.
B．You will be more familiar with the person you hire.
C．You can identify many of the true skills required for a particular job.
D．You can find talkative people make good sales representatives.
Myhrvold’s study failed to consider that__________．
A.in the future．electricity demand will probably rise
B.new resources such as nuclear，wind and solar energy are not purely clean
C.the environmental problem must be understood from many dimensions
D.daunting challenges must be outlined first in a study
What convenience can the new intelligent house bring to one's life？
A．The door will open with just a touch of the finger.
B．The refrigerator can figure out how much milk to buy.
C．The robot can do all the housework very efficiently.
D．The house can put out a fire in a very short time.
