dilipjibhakate2

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A---Which of the following solutions of strong electrolytes contains the largest total number of ions? Show your calculations and explain your reasoning.

100.0 mL of 0.100 M sodium hydroxide

50.00 mL of 0.200 M barium chloride

75.0 mL of 0.150 M sodium phosphate

B--35.0 mL of lead(II) nitrate solution reacts with excess sodium iodide solution to yield 0.628 g of precipitate.

--Write a balanced equation for this reaction, and identify the precipitate. Indicate states of matter with parentheses and (aq) or (s).
--How many moles of precipitate formed?
--How many moles of lead nitrate were in the original solution?
--What is the concentration of the lead nitrate solution in grams per mL?

C---A gas mixture, with a total pressure of 300.0 torr, consists of equal masses of Ne (atomic weight 20.18) and Ar (atomic weight 39.95). What is the partial pressure of Ar, in torr?

Coca Cola recently started using a new bottling machine. The manufacturer of the machine believes that it taps 33cl in each can. He knows that the standard deviation is 0.99 cl. In a sample of 20 cans, the average is 28cl. The production process is normally distributed.

a) Draw the power function of the hypothesis test?

Match the following health-economic value models with their definition below: budget impact model, cost analysis, cost-effectiveness model, cost-utility analysis

Compares the money spent on competing treatments over time from a payer, provider and/or societal perspective

Assesses incremental costs over the incremental QALYs gained for one treatment when compared to another

Calculates per-member, per-month costs within a treatable population

Evaluates the total incremental cost of the intervention per incremental unit of net health benefit experienced by the patient

A. Cost analysis

B. Budget impact model

C. Cost-effectiveness model

D. Cost-utility analysis

2)  In Canada 92% of households have televisions (T).  72% of households have televisions and internet (I) access.  5% have neither.  

a)  Complete the two- way relative frequency table:

I

Total

T

Total

100%

Use the appropriate probability notation in your answers to each question.

b)  What is the probability of selecting a Canadian house at random that has internet access but no television?

c)  What is the conditional probability of selecting a house that has internet given that it has a television?

d)  Of the house that do not have televisions, what is the conditional probability of selecting one that has internet access?

e)  Complete this conditional relative frequency table rounding to the whole nearest percentage (e.g. 12%).

Checked bag yes

Checked bag no

Business traveler yes

Business traveler no

f)  Is there an association between television ownership and internet access is Canadian homes?

When a solution of barium hydroxide is addedto a solution of aluminum chloride an insoluble precipitate ofaluminum hydroxide is formed. 20.0 mL of 0.10 M Ba(OH)2 is added to10.0 ml of 0.15 M AlCl3 in an experiment.

1. Write abalanced equation for this reaction

2. What is thelimiting reagent in this reaction

3. How manygrams of Al(OH)3 are formed

4. How manygrams of the excess reagent are left unreacted?

Directions: Write a paper using 'point of view' according to the instructions below.

1. Write an account of your day from the 'point of view' of your pet.
2. Analyze your daily activities and write about them from 'another' point of view. You can write from any point of view that you choose. You should include at least 3 paragraphs (morning, afternoon, evening) in your narrative. Identify the point of view.

Estimate the enthalpy of the following reaction in kJ to 3 significant figures.

H2(g) + Cl2(g) → 2 HCl(g)

Average bond energies for some bonds are:

H-H 436 kJ/mol

H-Cl 431 kJ/mol

Cl-Cl 243 kJ/mol

H-C 414 kJ/mol

aluminum sulfate calcium hydroxide aluminum hydroxide calcium sulfate

The Bond dissociation entalpies of the H-H bond and H-Cl bond ar 435 kj mol and 431 kj mol respectively. the delta Hf of HCL (g) is -92 kj mol. what is the bond dissociation enthalpy of the Cl-Cl bond ?

Kashmir is a disputed region caught between which tree countries

Why is the h-h bond enthalpy value in between the values for h-f and h-cl?

Explain for me Thanks

Set up in synthetic division

Set up expression solve for x 

How many grams of lithium are needed to produce 45.0 g of lithium nitride, Li3N, according to the following reaction? 6Li(s) + N2(g) = 2Li3N(s)