Questions
A compound containing only carbon and hydrogen is found to have an empirical formula with molar...

A compound containing only carbon and hydrogen is found to have an empirical formula with molar mass of 13. 0 g/mol. The compound
1.
cannot be either C2H2 or C6H6
2.
could be C6H6 but no C2H2
3.
could be C2H2 , but not C6H6
4.
could be C2H2 or C6H6
A compound containing only carbon and hydrogen is found to have an empirical formula with molar mass of 13. 0 g/mol. The compound
1.
cannot be either C2H2 or C6H6
2.
could be C6H6 but no C2H2
3.
could be C2H2 , but not C6H6
4.
could be C2H2 or C6H6

In: Chemistry

When 6.104 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 19.15 grams...

When 6.104 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 19.15 grams of CO2 and 7.842 grams of H2O were produced. In a separate experiment, the molar mass of the compound was found to be 28.05 g/mol. Determine the empirical formula and the molecular formula of the hydrocarbon.


A 7.797 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 7.623 grams of CO2 and 1.561 grams of H2O are produced.
In a separate experiment, the molar mass is found to be 90.04 g/mol. Determine the empirical formula and the molecular formula of the organic compound.

In: Chemistry

When 6.104 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 19.15 grams...

When 6.104 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 19.15 grams of CO2 and 7.842 grams of H2O were produced. In a separate experiment, the molar mass of the compound was found to be 28.05 g/mol. Determine the empirical formula and the molecular formula of the hydrocarbon.

A 7.797 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 7.623 grams of CO2 and 1.561 grams of H2O are produced. In a separate experiment, the molar mass is found to be 90.04 g/mol. Determine the empirical formula and the molecular formula of the organic compound.

In: Chemistry

Calculate the radius ratio for CaO if the ionic radii of Ca2 and O2– are 100...

Calculate the radius ratio for CaO if the ionic radii of Ca2 and O2– are 100 pm and 140 pm, respectively.

Based on the radius ratio above, what is the expected coordination number of CaO? The range of radius ratios for each coordination number is given in parentheses.

If the density of solid iron is 7.87 g/cm3, what is the packing efficiency of Fe if it adopts a body-centered cubic unit cell? The molar mass of Fe is 55.847 g/mol.

Determine the empirical formula of the compound with a crystal structure where beryllium ions occupy all of the tetrahedral holes in a cubic close-packed (ccp) array of carbon anions.

Determine the empirical formula of the compound with a crystal structure where boron ions occupy one-half of the tetrahedral holes in a cubic close-packed (ccp) array of nitrogen anions.

Determine the empirical formula of the compound with a crystal structure where silver ions occupy all of the octahedral holes in a cubic close-packed array of chlorine anions.

In: Chemistry

A survey was conducted in which 125 families were asked how many cats lived in their...

A survey was conducted in which 125 families were asked how many cats lived in their households. The results are shown below. ​a) What is the probability that a randomly selected family has one​ cat? ​b) What is the probability that a randomly selected family has more than one​ cat? ​c) What is the probability that a randomly selected family has​ cats? ​d) Is this an example of​ classical, empirical, or subjective​ probability? *Number of Cats-Number of Households* 0-71 1-33 2-16 3-4 4-1 Total-125 ​a) The probability that a randomly selected household has one cat is nothing. ​(Simplify your​ answer.) ​b) The probability that a randomly selected family has more than one cat is nothing. ​(Simplify your​ answer.) ​c) The probability that a randomly selected family has cats is nothing. ​(Simplify your​ answer.) ​d) Is this an example of​ classical, empirical, or subjective​ probability? Empirical probability Classical probability Subjective probability Thank you in advance!!

In: Math

Write out the following transactions in the Triple column cash book of Ali: 2018 Jan. 1...

Write out the following transactions in the Triple column cash book of Ali:

2018 Jan. 1 Ali commences his business with cash = OMR. 30000

Jan 2 He pays into bank current account = OMR. 20000

Jan. 3 He receive cheque from Khalid LLC on account = OMR. 1000

Jan. 7 He pays kulwant rai's cheque into bank = Rs. 1000

Jan. 10 He pays Said by Cheque = OMR. 1980 and receive discount = OMR. 20

Jan. 11 He receive cheque from Wasim = Rs. 970 and allow him discount = Rs. 30

Jan. 15 He makes sales for cash = OMR. 2000

Jan. 17 Cash deposited into bank = OMR. 3000 Jan.

19 He purchased a motor car by cheque = OMR. 6500

Jan. 20 He purchased goods by cheque = OMR. 1500

Jan. 22 He pays Essam traders in cash = OMR. 2000 and receives discount = OMR. 100

Jan. 29 He withdraws from bank for office use = OMR. 500

17 Jan. 30 He purchases furniture by cheque = OMR.

In: Accounting

Define a linear programming model and its components. Discuss which 3 properties a planning problem needs...

Define a linear programming model and its components. Discuss which 3 properties a planning problem needs to meet to be modeled as an LP?

Define the feasible set and its corner points. Explain how one can find the combinations of the decision variables corresponding to the corner points. How one can use the corner points to find the optimal solution?

Define special situations: unbounded feasible set, infeasibility, alternate solutions, redundant constraints. Discuss what do these situations imply for the manager's planning problem. When do you need to and how do you avoid this situation?

In: Economics

Please answer in detail with every step along with the graph which is required for question...

Please answer in detail with every step along with the graph which is required for question bit C.

The table below shows hypothetical values, in billions of dollars, of different forms of money.

a.     Use the table to calculate the M1 and M2 money supplies for each year, as well as the growth rates of the M1 and M2 money supplies from the previous year.

b.     Why are the growth rates of M1 and M2 so different? Explain.

2015

2016

2017

2018

A.

Currency

900

920

925

931

B.

Money market mutual fund shares

680

681

679

688

C.

Saving account deposits

5,500

5,780

5,968

6,105

D.

Money market deposit accounts

1,214

1,245

1,274

1,329

E.

Demand and checkable deposits

1,000

972

980

993

F.

Small denomination time deposits

830

861

1,123

1,566

G.

Traveler’s checks

4

4

3

2

H.

3-month treasury bills

1,986

2,374

2,436

2,502

c. Go to the web site of the St. Louis Federal Reserve Bank FRED database and graph the (year-over-year) growth rates of M1 and M2 for the sample period 1998-2018. Show your graph in your submission.

In: Economics

The demand for nurses in the US between 2000 and 2015 is estimated to be D(t)...

The demand for nurses in the US between 2000 and 2015 is estimated to be D(t) = 0.7t 2 + 0.265t + 2000 thousand, where 0 ≤ t ≤ 15, and t = 0 corresponds to year 2000. The number of nurses in the US between 2000 and 2015 is estimated to be S(t) = 0.14t 2 + 0.326t + 1900 thousand, where 0 ≤ t ≤ 15, and t = 0 corresponds to year 2000.

In the marginal analysis, you would use q'(8) to estimate what quantity? Find the exact value of that quantity, and compare with q' (8).

In: Math

Coriander with a 14% WACC is evaluating two projects for this year’s capital budget. After-tax cash...

Coriander with a 14% WACC is evaluating two projects for this year’s capital budget. After-tax cash flows, including depreciation are as follows: Year Project A Project B O -$6000 -$18,000 1 $2000 $5,600 2 $2000 $5,600 3 $2000 $5,600 4 $2000 $5,600 5 $2000 $5,600 a. Calculate NPV and IRR for each project b. Assuming the projects are independent which one (s) would you recommend? c. If the projects are mutually exclusive, which would you recommend?

In: Finance