chemistry
How many grams of sodium chloride, NaCl (fw 58.44), are required to prepare exactly 200 mL of a solution that is 600 ppm in sodium ions?
physic
A force of 12 N acts on an object of mass 10kg and moves it with a constant velocity across a floor. What is the coefficient of fiction between the object and the floor?
Thanks Ms. Sue
I'm going to read more about Robert Frost. He seemed to have jad quite a life. Thanks Again! Dee
Cisco
How many formula units are in .25 mole of Na O ? 2
organic chemistry
how do you propose a synthesis of a triphenylmethanol using a benzene, a formaldehyde,and any other inorganic reagents?
MATH
If $605 is invested in an account that earns 20.25%, compounded annually, what will the account balance be after 25 years? (Round your answer to the nearest cent.)
MATH
Find the cost of a home in 20 years, assuming an annual inflation rate of 4%, if the present value of the house is $285,000. (Round your answer to the nearest cent.)
physics
A 68.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.700 and 0.450, respectively. (a) What horizontal pushing force is required to just start the crate moving?
Half-Life
If the half-life of a radionuclide is 1 month, is a sample of it completely decayed after 2 months?
math
A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below. How many are not using any of the three? 35 said they drove alone. 24 rode in a carpool. 33 rode public transportation. 5 used both carpools and public transportati...
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