Given information:

MgSO4: mass of crucible (26.41g) mass of crucible and hydrate (36.37 g) mass of crucible and anhydrate after heating (31.45 g)

CuSO4: mass of crucible (18.21g) mass of crucible and hydrate (30.16 g) mass of crucible and anhydrate after heating (27.89 g)

Show the calculations:

(1) Mass of hydrate used (2) Mass of anhydrate after heating (3) Mass of water driven off from hydrate (4) Percent water in the hydrate

(5) Number of moles of water driven off from the hydrate (6) Number of moles of adhydrate in the product (7) Mole ration of anhydrate to water

(8) Empirical formula of the hydrate

Distillates of benzene containing benzene 42 wt% and Toluene mixture 3000 kg/hr shall be distilled, so that the benzene of the distillate is 95 wt % and the Tolumen of 98 %. Find the D(mole/hr) and W (mole/hr). The molecular weight of benzene and Toluene is 78 and 92 respectively.

Calculate the pH at the equivalence point in titrating 0.110 M solutions of each of the following acids with a solution 0.090 M in NaOH.

HClO2

HBr

Illustrate how is the zeroth law of thermodynamics used to define temperature scales?

does background radiation affect rate constant and impact the order of the reaction? so if the background radiation was recorded as a large number would it affect the rate constant and order of the reaction in an experiment?

For pH differential method, how to convert anthocyanin content (mg/L to mg/g) ? Show the calculation for example

28mg/L to mg/g.

What usually would be the total anthocyanin content (TAC) from butterfly pea ?

Ethanol (EtOH) can be produced by the hydration of ethylene, C2H4 + H2O ? C2H5OH, at 300?C and high pressure with a phosphoric acid catalyst. Downstream of the reactor, a condenser is used to separate the product, which contains only EtOH and H2O, from a recycle stream that mixes with the fresh feed before entering the reactor. The fresh feed contains 30 mol% C2H4 and the remainder is steam. The single pass conversion is 20%.
a. Draw and label the process flowchart. (4)
b. Determine how many moles of product are produced per mole of fresh feed. (5)
c. Determine how many moles of ethylene are recycled per mole of fresh feed. (4)
d. What is the overall conversion of ethylene? (2)
e. If inert species are present in the feed, what other type of stream will be required in the process? (2)

a)

Consider the following reaction at 298K.
2 Cu²⁺(aq) + Hg (l) ------>2 Cu⁺(aq) + Hg²⁺(aq)
Which of the following statements are correct?
Choose all that apply.

n = 1 mol electron

The reaction is product-favored.

delta G^o < 0

E^o_cell < 0

K < 1

b)

Consider the following reaction at 298K.
3 Hg²⁺(aq) + 2 Cr (s) ------> 3 Hg (l) + 2 Cr³⁺(aq)
Which of the following statements are correct?
Choose all that apply.

K > 1

n = 2 mol electrons

The reaction is reactant-favored.

E^o_cell > 0

delta G^o > 0

c)

What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the H₂ pressure is 6.47×10^-3 atm, the H⁺ concentration is 1.43M, and the Co²⁺ concentration is 5.94×10^-4M ?
2H⁺(aq) + Co(s)------> H₂(g) + Co²⁺(aq)
Answer: ? V
The cell reaction as written above is spontaneous for the concentrations given.. t/f

d)

When the following equation is balanced properly under acidic conditions, what are the coefficients of the species shown?
Pb²⁺+  Cu⁺ ----->  Pb +  Cu²⁺
Water appears in the balanced equation as a  (reactant, product, neither) with a coefficient of ?. (Enter 0 for neither.)
How many electrons are transferred in this reaction?

43 lb. moles of CO2, 6 lb. moles of water vapor and 195 lb. moles of N2 and 10 lb. moles of oxygen flow from a stack at 121 C. What is the partial pressure of water vapor in the flue gas in mm Hg.

In a combustion device, a mixture of 82 lbs of butane and 212 lbs propane C3H8 are burned with just enough air for complete combustion. How many lbs of total combustion products are formed? Round your answer to the nearest whole number

4a. Explain which biosafety cabinet is most suitable for a procedure that involves animal cells and flammable solvents.

b. A vessel disinfection procedure must be modified to sterilize the vessel. What types of changes in the procedure might be proposed?

c. Explain why TLV-TWA values cannot be used as a measure of relative toxicity of chemicals. 4d. Explain why maintaining a work environment at chemical concentrations below the TLV-TWA does not guarantee prevention of any adverse health effects for workers.

How is a low voltage two stage electrostatic precipitator different from a high voltage single stage electrostatic precipitator? Explain the operation of a plate type electrostatic precipitator. Include a schematic view of the electrostatic precipitator and mention the size-efficiency relationship.

a) Estimate the ϕ and f (bar) by the Peng/Robinson equation of state for Nitrogen at 250 K and 80 bar.

b) Compare the results in question (a) with values obtained from a "suitable" generalized correlation.

Liver paste for sandwiches. Chubby liver sausages (assume cylindrical, 5 cm across, 10 cm long), originally at 20 C, are to be processed in an autoclave kept at 115 C, and we want every part of the sausage to reach 105 C. Estimate the lowest temperature of the sausage after 3 h in the autoclave. Data: For food products containing a water fraction x, we have the following estimates: Cp= 4184x + 800(1-x) , J=kg K k = 0.56x + 0.25(1- x) , W=m K Liver sausage has about the same water content as canned dog food or 73 %; its density is about 1,050 kg/m3, and in the autoclave, h=7.6W/m2 K.