When 245g of an unknown weak acid ha with a molar mass of
When 2.45g of an unknown weak acid (HA) with a molar mass of 85.0 g/mol is dissolved in 250.0 g of water, the freezing point of the resulting solution is -0.255 C. Calculate Ka for the unknown weak acid.
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Which expression represents the percent by mass of nitrogen in NH4NO3. A) 14 g N/80 g NH NO 100% B) 28 g N/80 g NH NO 100% C) 80 g NH NO /14 g N 100% D) 80 g NH NO /28 g N 100%
Assume frictionless flow in a long, horizontal, conical pipe. The diameter is 12 inches at one end and 6 inches at the other. The pressure head at the smaller end is 16 feet of water.
Describe a modification to the random port scan, as describe in previous exercise, so that it still use a randomly generated sequence of port numbers but will now have exactly the same number of attempted TCP connections as a sequential port scan.
Draw and explain a pump curve that illustrates the effect of throttling in the CLOSED direction (i.e., reducing flow) the discharge valve for a constant speed centrifugal pump installed in a cooling water system.
A typical paper clip weighs 0.59 gram and consists of BCC Iron. The density of iron is 7.87 gram/cm3 and its atomic radius is 0.124 nm. What is the volume of a unit cell in (nm)3. What is the volume of a unit cell in cm3.
The hose has an inside diameter of 2 inches. If viscous effects are neglected (inviscid/frictionless flow) and the hose outlet is 10 feet below the surface of the pond, calculate the volumetric flow rate inside the hose in units of gallons per min
Two input voltages are v1(t) and v2(??). Design an op-amp circuit that will generate the voltage 3v1(??) - 2??2(??). Its input resistance must exceed 1 kΩ and its output resistance must be less than 10 Ω. Use more than one op-a
Write the correct equation accounting for the ready formation of metallic deposit on placing a magnesium strip into 0.1 M iron nitrate
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Using your textbook, define social networks as a relational maintenance behavior. Identify something specific you already do to utilize social networks
Question: As their counsellor, what approach would you take with this family (Bowen or Solution Focused)? Why
Which one of the following variables is notcategorical? A) Age of a person. B) Gender of a person: male or female. C) Choice on a test item
Question: Which of the following vulnerable groups currently has specific regulatory protections? Group of answer choices
By far the most common sexual activity among adolescents is: Option A "french" kissing Option B sexual intercourse Option C masturbation
An event that significantly sparked a period of personal growth for me was when I led a volunteer program for the county
In exploring how rebellion connects to individuality within group development, I really appreciate the reminder that this stage should not be viewed