A first order reaction has a rate constant of 0342 sec-1 at
A first order reaction has a rate constant of 0.342 sec-^1 at 29.5 degrees C. If the activation energy is 69 kJ, calculate the temperature in degrees C at which the rate constant is 0.428 sec^-1.
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The driver of a car slams on the brakes when he sees a tree blocking the road. With what speed does the car then strike the tree
The balanced chemical reaction for the titration performed in this lab demonstration is: NaCOOH(aq)+NaOH(aq)=Na(CH3COO)(aq)+H2O(l). A basic solution has positive ions and OH- ions like Na+ and OH-.
find the current that flows in a silicon bar of 10 micrometerlength having a 5 X4 micrometer cross section and having freeelectron & hole densities of 10^5/cm^3 & 10^15/cm^3 ,respectively, when a 1V is applied end-to-end. Use Mn =1200cm^2/
A 4 kg block is acted upon by three horizontal forces. 10n (to left) 5n(short arrow to right) 25n to right. what is the horizontal acceleration of the block
A daring ranch hand sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. How long is he in the air
In this problem, we assume that expected sales are independent of the current assets investment policy. Is this a valid assumption? Why or why not?
Suppose the exchane ratee between the US dollar and Swedish krona was 6.3 krona = $1, and the exchange rate between the dollar and the British pound was E1 = $1.64. What was the exchange rate between Swedish kronas and pounds?
By the end of the month, it has unexpectedly dropped to 94 cents. Has your company made a gain or a loss as a result, and by how much?
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What mezzo and macro level factors are at play in regards to why African American seniors are less likely to use hospice?
This innovation is thought to have played a role in encouraging European scholars to think about human variation in terms of categories.
Explain what Gutenberg printing press was designed for and how it improved on existing methods. Name and explain the two major social impacts
ender role conformity can expose the power that the dominate gender has in society. It illustrates that not all genders have access to the same resources
Read the CBC news article on the Digital Divide in Newfoundland. Discuss how the article relates to the idea of the "digital divide"
Question: Suppose a hurricane destroys several factories within a society. What effect would this have on that society?
Walmsley et al. (2021) spoke of 15 Africentric social work pioneers who "emerged as leaders on fields as diverse as mental health, prison reform