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Questions (136)
In many cases, not all of Koch's postulates can be applied to determine the cause of a human disease. Explain why.
0 answers
507 views
Write a 200 word paper on the three executive offices which most frequently affect the Health Information profession. What do
0 answers
549 views
What is the PH of 0.0100M H2SO4?
2 answers
385 views
Which direction will the following reaction in a 5.0 L flask proceed if
Qp = 0.013? 2H2O(g) = 2H2(g) + O2(g) Kp = 1.6 x 10-5
5 answers
747 views
I have a question on this question would I forgo the sqaure root on this on because there is no sqaure except on the products
3 answers
551 views
A mixture is prepared with [CO] = 0.035, [Cl2] = 0.015, and [COCl2] = 0.95. It is known that Kc for the equilibrium is 1.2 x
3 answers
1,180 views
At a particular temperature, Kc = 54 for the reaction H2(g) + I2 (g) <=> 2 HI(g).
One mole of HI is placed in a 3.0-L container.
3 answers
516 views
At a particular temperature, Kc = 54 for the reaction
If 1.0 mole of H2 and 1.0 mole of I2 are placed in a 5.0 L container, what
3 answers
1,006 views
The molarity of urea in a solution prepared by dissolving 16 g of urea (MW 60.0g/mol) in 39 g of H2O is ______M. The density of
2 answers
5,462 views
A solution is prepared by dissolving 15.0 g of NH3 in 250.g of water. The density of the resulting solution is 0.974 g/ml. The
1 answer
5,261 views
A colloid is the dividing line between solutions and heterogenous mixtures.
What is the exact particle size of a colloid compared
1 answer
494 views
Which of the solutions has the greatest osmotic pressure?
Choose one answer. a. 10.0 g glucose in 1.00 L at 298 K b. 10.0 g
1 answer
812 views
how would I find the mass of something from the molality.....
How many grams of water should be added to 25.0 g of NaCl to
2 answers
598 views
How many grams of water should be added to 25.0 g of NaCl to produce a 0.450 m solution?
1 answer
501 views
A 6.00 M H2SO4 solution has d = 1.34 g/mL. What is the mass percent of H2SO4 in this solution?
Choose one answer. a. 56.1 b. 43.9
1 answer
1,086 views
What is the molality of a solution prepared by dissolving 2.00 mL of bromine (d = 3.103 g/mL) in 125 mL acelic acid, HC2H3O2 (d
3 answers
1,887 views
Which of the following is not true in a dynamic equillibrium describing a saturated solution?
Choose one answer. a. solid
3 answers
820 views
Calculate the molality of methanol in a solution prepared by dissolving 75.0 mL of methanol, CH3OH (d = 0.791 g/mL), in 150 g of
3 answers
2,574 views
What is the mass percentage of 55.0 g of KCl in 125 g of water?
1 answer
599 views
200. g of a solvent is available, how many grams of a solute should be weighed out to make a 15.0% solution by mass?
3 answers
458 views
Calculate the molarity of a solution containing 40.0 g glucose (C6H12O6) in enough ethanol (C2H5OH) to make 40.0 mL of solution.
1 answer
1,513 views
A 0.750 g sample of an unknown substance is dissolved in 20.0 g of benzene, C6H6. The freezing point of the solution is 4.53 oC.
2 answers
1,342 views
A 0.750 g sample of an unknown substance is dissolved in 20.0 g of benzene, C6H6. The freezing point of the solution is 4.53 oC.
1 answer
1,377 views
From the following: 1) pure water 2) 0.01 m solution of table sugar (C12H22O11) 3) 0.01 m solution of NaCl 4) 0.01 m solution of
2 answers
1,560 views
From the following:
1) pure water 2) 0.01 m solution of table sugar (C12H22O11) 3) 0.01 m solution of NaCl 4) 0.01 m solution of
1 answer
950 views
A 2.30 m solution of urea (CO(NH2)2; FW= 60.0) in water has a density of 1.14 g/mL. Calculate the percent mass of urea in this
1 answer
968 views
I need help with this problem I can not figure this out I had came up with five different answers and I really would like to get
3 answers
490 views
Which of the following is NOT a reason for unequal income distribution?
education location discrimination size of family I want
1 answer
474 views
Atmospheric Issues
0 answers
377 views
The Population Size explain the four factors that produce changes in population size. Which factors are affecting the population
1 answer
1,179 views
If the co-efficient of static friction for a 5 kg rubber block is 0.3 how much more force is required to lift the block than to
2 answers
632 views
The co-efficient for static friction for a 5 kg box on a floor is .72. How much force if required to start the box sliding?
I
2 answers
592 views
how do you write 2 3/8 as a percentage/
1 answer
334 views
How does one translate "that will be fun" into French? Thank you!
2 answers
439 views
I NEED A HYPOTHESIS A LANDOWNER COULD TEST TO PROVIDE EVIDENCE TO HELP DECIDE WHAT ACTIONS COULD BE TAKEN TO REDUCE EROSION ON A
1 answer
532 views
How can an animal be both predator and prey?
Ever see a cat watching a bird eating a worm?
0 answers
535 views
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