How many seconds are there in a solar year
How many seconds are there in a solar year (365.24 days), expresses in the correct number of significant figures. 60 sec. Per min, 60 min per hr, and 24 hours per day.
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Calculate how many grams of glucose would be required to prepare 400 ml of a 0.36M solution. MW= 180.You have 100X stock of a buffer. You need 100 mL of 1X buffer. How much buffer solution do you use? How much water?
How many mL of concentrated HCl would be necessary to prepare 50.0ml of a 10.0 % HCl solution? Concentration HCl acid is listed as 38.0% w/w. What is the other 62.0% of the concentrated HCl solution?
The kinetic model of gases assumes the average nearest distances between 2 molecule in the gas is much greater than the size of the individual molecules making up the gas.
At the angle determined above the mass begins to move down the incline and experiences a frictional force. If the net acceleration of the mass down the incline is 1.2 m/s2, what is the coefficient of kinetic friction µk of the surface?
A 562 N physics student stands on a bathroom scale in an 824 kg (including the student) elevator that is supported by a cable. As the elevator starts moving, the scale reads 442 N. Find the magnitude of the acceleration of the elevator.
Derieve an expression for the compression factor Z of a gas that obeys the equation of state p(V-nb)=nRT where b and R are constants. If the pressure and temperature are such that Vm=10b, what is the numerical value of the compression factor?
You slide a crate up a ramp at an angel of 30 degress by exerting a 225 N force parallel to the ramp. The crate moves at a constant speed. The coefficient of friction is .28. How much work did you do on the crate as it was raised a vertical distan
How would your calculated value for the molecular weight of your unknown been affected (high, low, no effect) if a small quantity of the unknown stuck to the metal stirring rod and failed to dissolve in the benzophenone?
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1: An old, low quality, but free and interesting documentary: Zimbardo- Stanford Prison Experiment Documentary.
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