amirarsalan

A chemist determines by measurements that 0.045 moles of iodine solid participate in a chemical reaction. Calculate the mass of iodine solid that participates.

Round your answer to 2 significant digits.

The following chemical reaction takes place in aqueous solution:

2AgF(aq)+Na2S(aq)→Ag2S(s)+2NaF(aq)

Write the net ionic equation for this reaction.

A chemist measures the amount of fluorine gas produced during an experiment. He finds that 556. g of fluorine gas is produced. Calculate the number of moles of fluorine gas produced.

Round your answer to 3  significant digits.

In a certain chemical reaction Compound A combines with Compound B to produce Compound C (and no other products). Measurements were taken of the amounts of A and B present before and after reaction that produced some C:

Calculate the theoretical yield of C.

Round your answer to the nearest 0.1g.

Round your answer to the nearest 0.1g

Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium bromide NaBr and liquid water (H2O). What is the theoretical yield of water formed from the reaction of 6.5g of hydrobromic acid and 2.0g of sodium hydroxide? 

Round your answer to 2 significant figures.

Help me do this please.

Consider an animal that has suffered a disease resulting in stiffened cardiac muscle, and so decreased volume of blood pumped per unit time. discuss the implications of this on the metabolic rate at the tissues.

In a certain chemical reaction Compound A combines with Compound B to produce Compound C (and no other products). Measurements were taken of the amounts of A and B present before and after a reaction that produced some C:

1) Calculate the theoretical yield of C. Round your answer to the nearest 0.1g.

2) Suppose the percent yield of C in this reaction was 48.%. Calculate the actual amount of C that was isolated at the end of the reaction. Round your answer to the nearest0.1g.

Write a 3-5 page paper describing the key elements of the Opportunity Canvas and the decisions you are making regarding key components of it. 

Q-4 (a): A share of stock has a dividend of D0 = $5. The dividend is expected to grow at a 20 percent annual rate for the next
10 years, then at a 15 percent rate for 10 more years, and then at a long-run normal growth rate of 10 percent forever. If investors
require a 10 percent return on this stock, what is its current price? 

Q-4 (b): The Cristiano Book Production Company has been hit hard due to increased competition. The company’s analysts
predict that earnings (and dividends) will decline at a rate of 5 percent annually forever. Assume that ke = 11 percent and D0 =
$2.00. What will be the price of the company’s stock three years from now?

Find y'' for

y = 8x⁴e^5x.

Black Forest Biologicals, a biotech startup, has a promising Alzheimer's drug candidate Compound SLT-88 entering Phase I trials this year. SLT-88 is the only product formed by the reaction of two precursor compounds A and B, both of which are quite expensive. The chief medicinal chemist of Black Forest is trying out different reaction conditions to minimize the cost of manufacturing SLT-88.

In the table below are listed the initial and final amounts of A and B used under two different trial conditions, and also the actual amount of SLT-88 recovered in each case. Complete the table by calculating the theoretical yield of SLT-88 and the percent yield of SLT-88. Round your amounts to the nearest milligram and your percentages to the nearest whole percent.

Gaseous methane (CH4) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O). What is the theoretical yield of water formed from the reaction of 0.96g of methane and 3.3g of oxygen gas?  

gaseous ethane CH3CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. What is the theoretical yield of carbon dioxide formed from the reaction of 2.1g of ethane and 3.4g of oxygen gas?

Be sure your answer has the correct number of significant digits in it.

Gaseous methane (CH4) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O). What is the theoretical yield of water formed from the reaction of 0.96g of methane and 3.3g of oxygen gas?  

Round your answer to 2 significant figures

What are the options for above question if my answer is wrong?

Rephrase these paragraphs

Part A:

The area of the rectangular field is:

(2.7 x 10^3 ft) x (3.5 x 10^3 ft) = 9.45 x 10^6 ft^2

Half of the field is used to grow crops, so the area of the portion with crops growing is:

(1/2) x 9.45 x 10^6 ft^2 = 4.725 x 10^6 ft^2

Part B:

To write the final answer in scientific notation with the correct number of significant digits and units, we need to round the result to two significant digits and include the units:

4.725 x 10^6 ft^2 ≈ 4.7 x 10^6 ft^2

Part C:

The original measurements in the problem were given to two significant digits, so the final answer should also have two significant digits. We rounded up from 4.725 to 4.7 because the next digit (5) is greater than 5, which means we round up according to rounding rules. Finally, the units of the answer are square feet, which come from multiplying the length and width of the rectangle.