A 611g sample of cu-shyzn alloy reacts with excess aqueous
A 6.11g sample of Cu-?Zn alloy reacts with excess aqueous HCl producing 1.26 L of H2(g) at 22.0 ?C and 728 torr. Since only the Zn portion of the alloy reacts, calculate the percent Cu in the alloy.
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In a hypothetical economy, the annual velocity of money is 10,and level of real output is $800 billion. In year 1, the economy'smoney supply is $100 billion and in year 2 it is $112 billion.Calculate the rate of inflation between years 1 and 2
Small air bubbles in the salt bridge may not be a problem. How can the presence of air bubbles in the salt bridge alter the effectiveness of this salt bridge
A horizontal aluminum rod 4.8 cm in diameter projects 5.6 cm from a wall. A 1200 kg object is suspended from the end of the rod, Find the shear stress on the rod
David Ding advertises on a local radio station. For the past sixweeks, the manager has kept records of the number of minutes ofadvertising that were purchased, and the sales for that week. Week1, 2 minutes of advertising with $1.400 in sales.
Suppose that: y-sqwiggly line on top=1/2Y1+1/3Y2+1/6Y3 a) show that y-sqwiggly line on top is a linearestimatorb) show that y-sqwiggly line on top is an unbiasedestimator
A solution is made with 100mL of DI water and 8mL of .10 HCL (hydrochloric acid). then 2.50mL of NaOH is added. What is the new pH?
Consider Good E, which, when sold in a particular country, has anequilibrium price = $10.00. The government of that country decidedthat it doesn't like that equilibrium price, and so passes alaw which prevents the product from selling for $10.00.
Some of the earliest atomic models held that the orbital velocity of an electron in an atom could be correlated with the radius of the atom, what is the kinetic energy of this orbital electron
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