Calculate how you would make the same solution
How much of a 6 M Na2CO3 stick do you need to make 100mL of a 10% Na2CO3 working solution. Describe how you would make the same solution given a bottle of anhydrous sodium carbonate (MW= 105.99g/mole).
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A hydrocarbon is a compound that contains mostly carbon and hydrogen. Calculate the percent composition (by mass) of the following hydrocarbon: C 8 H 18 . What is the percentages of carbon and hydrogen separately?
The mass of platinum is 21.4 x 103 kg/m3. A platinum wire with a radius of 0.500mm, 1.20 m long fixed at both ends has a frequency of vibration for its third harmonic equal to 512hz. What is the tension in the wire.
Determine (a) the mass flow rate through the nozzle, (b) the exit temperature exit temperature of the air, and (c) the exit area of the nozzle.
At what distance from the wall should this mirror be placed so that a real image of the object is formed on the wall? What is the magnification of the image?
500J of work is done to compress the gas while, in the same process, 1400J of heat energy is transferred from the gas to the environment. Afterward what is the rms speed of the molecules?
Determine the velocity and acceleration of point A, which is the outermost tip of one of the blades (with respect to ground) when the angle is 0,90,and 180 degrees from the tail.
A projectile is launched with an initial speed of 40 m/s at an angle of 20° above the horizontal. The projectile lands on a hillside 3 s later. Neglect air friction. (a) What is the projectile's velocity at the highest point of its trajectory?
Which is rotating about its axis CD at an angular velocity of w1=200 rev/s, with respect to ground. Find the angular acceleration of the disk with respect to ground.
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Participant reactions to the confederate were recorded by a camera hidden in the ceiling. Is it likely that there will be a Hawthorne effect in this example?
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