How many lead atoms are in a cube of lead
How many lead atoms are in a cube of lead that has a volume of 2.00cm cubed, if the density of lead is 11.3 g/cm cubed? A lead atom has a mass of 3.14 x 10 to the negative 22nd g.
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A trucking firm suspects that variance for a certain tire is greater than 1,000,000. To check the claim, the firm puts 101 of these tires on its trucks and gets a standard devation of 1200 miles. If alpha is = 0.05 test the trucking firms claim us
X gm of a metal (eq wt 12) was completely dissolved in the 100cc of N/2 HCl. The volume was then made up to 500cc of this dilute acid. 25ml of this acid required 1705cc of N/10 NaOH for complete neutralization. Find out the value of x.
(i) Determine the period of the motion, (ii) Determine the maximum values of its speed and acceleration and (iii) Write down the expressions for the position, velocity and acceleration as functions of time.
Determine the pressure equilibrium constant Kp for the reaction at this temperature. Calculate the partial pressure of chlorine in the vessel?
(i) Evaluate the magnetic field at the center, (ii) When n is allowed to become very big (n = ∞), illustrate that the formula in part (i) reduces to that for a circular loop.
Determine the molar concentration of the calcium ion in the resulting solution? 15.00 mL of a 0.127 M CaCl2 solution are mixed with25.6 mL of a .137 M Ca (NO3)2 solution.
For any natural number n, let d(n) denote number of positive divisors of n. For instance, d(4) = 3 because 4 has 3 positive divisors: 1,2, and 4. Explain those natural numbers n for which d(n) = 2.
A negatively charged balloon consists of 3.5 micro coulombs of charge. Determine how many surplus electrons are on the balloon?
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