What mass of solid sodium fluoride molar mass 4199 gmol
What mass of solid sodium fluoride (molar mass = 41.99 g/mol) should be added to 1.0 L of 0.23M hydrofluoric acid to make a buffer with a pH of 2.94? (Ka of HF = 1.36 x 10-3)
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Write a program that reads in two floating-point numbers and tests whether they are the same up to two decimal places. Here are two sample runs. Enter two floating-point numbers
b) Give the mean and standard deviation of the sampling distribution of xbar2. c) Suppose you were to calculate the difference between the sample means (xbar1-xbar2). Find the mean and standard deviation of the sampling distribution of (xbar1-xbar
Manganese dioxide reacts with hydrochloric acid as shown in the chemical equation MnO2(s) + 4HCl(aq)-->MnCl2O(l) + Cl2(g) What is the percent yield of the reaction if 5.75 g of H20 is obtained when 28g of MnO2 and 28g of HCl are mixed and allow
A brief critical review of the key academic sources you would use, outlining the main issues raised by these sources and how they support your aims and objectives. Do not just describe the literature
Discuss the advantages of some of the current technologies including VoIP, Unified Communications, Virtual Private Networks, Wi-Fi and wireless technologies like RFID and Wireless Sensor Networks. Are there risks associated with any of these to
A power line 50km long has a total resistance of 0.60ohm, What percentage of the original energy is lost when the transformer is not used
Monetarists believe that changes in the money supply will have no effect on real income in the long-run. In other words, they believe that money is ‘neutral' in the long-run. How does this long-run neutrality come about
The Internet and the Web are not the same thing. What is the difference between the Internet and the Web? Let's discuss what the Internet is and how many kinds of traffic, including Web traffic, can run on the Internet. What are the key technologi
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A military officer retires from serving and wants to continue healthcare coverage using a product provided by the military as it is most cost effective.
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Individuals covered by a high deductible health plan within a preferred provider organization use fewer outpatient services and shop around for lower cost