jimbo

for a sum of 10.1955 do I round up or leave it as is

who invented plastic

what mass in grams of a molecular substance (mole weight=50.0g/mol) must be added to 500g of water to produce a solution that boils at 101.56(degrees)C?

An aqueous solution containing 12.0% MgCl2 by mass has a density of 1.105g/ml. What is the mol fraction of water in this solution?

85.0 grams of potassium bromide are to be used to produce a 0.300M solution. What will be the total volume of this solution?

Soutions are made that contain 0.1 moles of each of the following compunds below in 100 of H2O. Choose the compounds whose solutions will have the lowest freezing point. A)MgCl2 B)MgSO4 C)KClO3 D)CO2 E)NaBr

The Vapor pressures of pure propyl alcohol and isopropyl alcohol are 21.0 mmHg and 45.2 mmHg, respectively, at 25 (degrees)C. Calculate the partial pressure of isopropyl alcohol above a solution in which the mole fraction of propyl alchol is 0.250.

Pressure of pure A at 85 (degrees)C is 500 mmHg, what is the vapor pressure of pure B at this temperature? A)336 mmHg B)960 mmHg C)576 mmHg

Thank you Ms Sue

I apologize but the rest of the answer choices are: D)260 mmHg E)933 mmHg

240 kj

13281.34130 fpp

after 30 days 50% of the sample would have decayed. 50% / 30 days gives you a daily decay rate of 1.6666667. multiply this by 16.2 to give 27. 27 is the percentage of the sample that has decayed after 16.2 days so 100-27 = 73%

This is because each pregnancy is independent of the others so the chances of receiving either a boy or girl is 50% for each separate pregnancy. the same as flipping three coins, the chances of having either heads or tails is 50% and each flip is independ...

as long as it takes to get a can of dip from the store

Donna is correct the answers are A,C,ACD,D,C this is for lesson 1 probability

I took it just now it is infact a+d you guys are welcome

WTF THIS IS IN 2007??