Chemistry
if the mole fractionof sulfuric acid (H2SO4) in an aqueous solitioin is 0.325, what is the percent by mass of H2SO4?
math
The owner of a luxury motor yacht that sails among the 4000 Greek islands charges $430 per person per day if exactly 20 people sign up for the cruise. However, if more than 20 people (up to the maximum capacity of 90) sign up for the cruise, then each fare is reduced by $4 per...
math
In how many ways can the grand prize ticket and second prize ticket be selected from 400 tickets?
math
Consider the supply equation where x is the quantity supplied in units of a thousand and p is the unit price in dollars. p=x^3+x+10 Determine the price at which the supplier will make 2,500 units of the commodity available in the market. (Give your answer correct to the neares...
math
Find an equation of the line (in slope-intercept form) that passes through the point (7,5) and is perpendicular to the line 7x + 10y - 17 = 0 y=?
math
if you made a stack of nickels a 100 inches tall, how many nickels would you need
Chemistry
ow many molecules are in 0.26 mol of CO2?
CHEMISTRY
What is the mass of 1.75 x 10^24 molecules of NH3?
Science
A boat is sailing 42 km/hr upstream on a river that is moving at 16 km/hr downstream. What is the velocity of the sailboat.....can you show me the formula too...not understanding this
Science
A 50N- force was applied to a 10kg ball. Find the acceleration of the ball
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