Scott
Questions
Newest questions posted by Scott

If 25.0 g S8 (molar mass = 256.56 g/mol) is made to react with 2.0 L O2 at 25 oC and 1.0 atm, what is the maximum amount (in grams) of SO3 produced?

Solve? 5 sqrt 2^3x * 64^2x+2 =32768^x

1. A car is worth $23000 in Jan 2017 in the first year the car depreciates by 15 percent per annum and then 7 percent every year after that. a) what will the car be worth in Jan 2023? b) when will the car be worth $5000? 2. In 2017 the population of a

1. Iodine131 is used to find leaks in water pipes it has a half life of 8.14 days. If 36 days have passed and there is now 2.34g left. What is the initial amount? 2. Sr85 is used in bone scans and has a half life of 64.9 days. If there is 23 percent of

If a gas effuses 1.618 times faster than Kr (molar mass = 83.8 g/mol) what is the molar mass of the gas?
Responses
Newest responses posted by Scott

so an 8 kg pendulum bob has been created momentum is conserved ... so the momentum of the bob equals the momentum of the missle ... this gives the immediate velocity of the bob the centripetal force necessary (to keep the bob moving in a circle) is ... m

the surface area of the sphere is ... π d^2 a cubic meter of water has a mass of 1000 kg (a metric ton) ... 11,000 m^3 of water has a mass of ... 1.1E7 kg the force of the water (pressure) is ... 1.1E7 * g Newtons/m^2 ... multiply by the surface area to

sounds like they want a table of widths and lengths W = 1 ... L = 20 W = 2 ... L = 10 just make a table

rate = distance / time = (44 / 5 mi) / (4 / 3 hr) = 33 / 5 = 6.6 mph time = distance / rate to find the time for any distance , just divide by 6.6 mph

there is no decimal point , so the "4" is the only significant digit nonzero digits are significant zeroes are significant in some cases ... between nonzero digits ... 2001 , 4 sig fig ... trailing zeroes with a decimal point ... 400 , 1 sig