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1. Why is it important to make sure all of your unknown has vaporized?
2. Why is it important to put a pinhole in the aluminum "cap"?
If 0.75 g of a as occupies 265 mL at 25°C and 680 mm Hg, what is the molar mass of the gas?
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An aqueous solution has a normal boiling point of 102.0°C. What is the freezing point of this solution? For water K b is 0.51°C/ m and K f = 1.86°C/ m.
Over the next 12 months Bradley Metals (Located in Vancouver) will order aprox. 6000 of forging units (from Kurrat Tools, located in Montreal) with the average weight of 15 LBS/unit.(6000/12= 500 units per month). 6,00 ...
This experiment involves collecting data for the cooling of water between 175 o -160. o F in different containers. What is 175 o F in celsius? Please report your answer correctly to three significant digits.
A dessert contains 131.55 g of vanilla ice cream, 90g of fudge sauce, and 40.0 g of nuts. What is the total weight, in pounds, of the dessert?
Interpretation of Reactions by Ionic Type Equations. Aqueous solutions of the following substances or their mixtures with water if they are only slightly soluble, are mixed. Write first the conventional equation , secon ...
Consider two acids HCN and HNO2: HNO2 + H2O NO2- + H3O+ Ka = 5.1 x 10-4 HCN + H2O CN- + H3O+ Ka = 2.1 x 10-9 Which of the following statements is/are true? A ...
What is the subshell electron configuration for the Ca20 atom? Which are valence electrons and how many valence electrons are there?
What is the mass of NaOH present in grams, given that a 100. mL solution has a concentration of 0.125 M?
Do you notice any trends or can you make any generalizations about where certain types of liquids fall on the pH scale?
What are the symbol and name of the element whose average atoms have a mass very nearly half the mass of an average silicon atom?
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As