Explain how the following experimental errors affect the final calculation of the kilocalories per gram for a food item. Be specific as to whether the final value will be higher or lower than if the error had not been made. a. The stu

Q: Can you help me express this in mg CaCO3? Given:  Weight of CaCO3 = .2515 g Molarity of Ca2+ ions = ...

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Q: Calculating Limiting Reactant Problems. Show your complete solutions. 1. Si + 2 Cl2 ➡ SiCl4 In the g...

A: The limiting reactant in a chemical reaction is the reactant that will be consumed completely. The e...

Q: A deep-sea specialist found a new base. If the 0.152 M new base found at the bottom of the ocean and...

A:  0.152 M = new base pOH = 3.40 Temperature = 25oC we have to calculate the pKb of the mentioned new ...

Q: The 5 kg/s flow rate milk (13% dry matter) is dried with spray dryer to form milk powder (98% dry ma...

A: Given that, The mass flow rate of milk mi = 5 kg/s The mass fraction of dry matter in the milk xD,i ...

Q: Discuss the factors which contribute to the formation of precipitate.

A: Precipitation is any form of liquid or solid water particles that fall from the air and reach the Ea...

Q: Air at 20°C flows through the horizontal tapered duct. Determine the acceleration of the air if on a...

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Q: snip

A: 2A + 2B + C = D +3E Expt Initial Rate Initial [A] Initial [B] Initial [C] 1 6×10^-6 0.024 0.085...

Q: 1 mole of nitrogen tetraoxide was placed in a container and allowed to dissociate according to the n...

A: Write the reaction as follows: N2O4g  → 2NO2g   The volume of the mixture, V = 36 L The pressure of ...

Q: A solution of methylene chloride (CH,CI,) and ethanol (CH,CH,OH) is boiling at 62.7 °C. A sample of ...

A: A mixture of methylene chloride (M) and ethanol (E) is boiled. The temperature of the boiling mixtur...

Q: Would you mind answering questions d, e, and f? Thanks.

A: Trial 2 A=0.200 B=0.900 Initial rate of appearance of A2B3=0.45 Since, different questions have been...

Q: Roasted lead ore with composition: 25% PbO, 18% PbS, 22% Fe2O3, 2% Cu2S, 29% SiO2, 4% CaO is smelted...

A: composition is given, PbO=25%  PbS=18% Fe2O3=22% Cu2S = 2% SiO2=29%  CaO=4%  The base feed of ore is...

Q: You conduct the following reaction in the laboratory by mixing 30.0 g of NO. with excess water, Once...

A: The percent yield from the given reaction is to be calculated.

Q: Please help ?

A: Write the reaction as follows: COCl2g → COg + Cl2g   The initial pressure of COCl2 is 0.470 atm

Q: Please help to solve the Q:

A: In process dynamic control, a block diagram is described as a pictorial representation of the functi...

Q: How much heat in kJ is given off when condensed and cooled to 40 ° C, 500 grams of water vapor found...

A: The temperature of water vapor=120oC The temperature of cooled water=40oC Mass of water=500gram To C...

Q: Starting with excess hydrochloric acid (HCI), what mass of tin is required to produce 2.33 g of hydr...

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Q: The active ingredient in a popular antacid remedy is CaCO3 (more familiaras the main component of ch...

A: This question is based on the concept of Entropy change. Data given : Entropy Values : For CO2(g) = ...

Q: The distillation in Figure 1 shown on the next page is used for the distillation of a binary mixture...

A: Feedback control method always deal with measurement of controller variable whether its a temperatur...

Q: A cylinder contains 1.2 moles of ideal gas, initially at a temperature of 117°C. The cylinder is pro...

A: The number of moles of gas(n)=1.2moles Initial Temperature(T1)=117oC=390K Final Temperature(T2)=27oC...

Q: Q1: Air at 200 °F and 60 psia flows in a 4-in.-diameter pipe at a rate of 0.52 lb/s. Determine the p...

A: SINCE MULTIPLE QUESTIONS ARE GIVEN, ACCORDING TO THE GUIDELINES ONLY FIRST ONE WILL BE ANSWERED Diam...

Q: Nitric acid, HNO3, can be manufactured fromammonia, NH3, by using the three reactions shownbelow.Ste...

A: Moles of NH3=4 moles To Calculate the amount of HNO3 that can be produced.

Q: Given the problem and solution. How did Vliquid and Vvapor have this value? Please use Perry's handb...

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Q: Process Dynamics and Control, Third Edition or Fourth Edition, by D. E. Seborg, T. F. Edgar, D. A. M...

A: The given dynamic model of an electric heater is:   Here, T is the slab temperature in °R, Q(t) is ...

Q: A certain natural gas has the following volumetric analysis: 77.7% CH4, 8.5% H2, 9.5% N2, 2.8% O2, a...

A: Given the natural gas having the volumetric analysis,  

Q: If you used 71 g of K and 200 g of Br, how much Br, would you have leftover? 2K+ Br, --> 2 KBr 4

A: The reaction is given as: 2K+2Br2→2KBr To solve this problem, first will find limiting reactant betw...

Q: what is hte pH for the complte titration of 34.5 mL of 0.192 M benzoic acid, HC6H5CO2, with 0.150 M ...

A: Given that: Volume of weak acid, benzoic acid (HC6H5CO2)= 34.5 mL Concentration of (HC6H5CO2)= 0.192...

Q: QUESTION in the Principle of Chemical Engineering.

A: The reaction is given as: CH4+2O2→CO2+2H2O Heat transfer is operated in a combustion chamber where C...

Q: A mixture of 45-55 C6H6-C7H6 % by weight is fed into a distillation column at a rate (F) of 2000 kg/...

A: Feed flow rate=2000kg/hr Mass fraction of C6H6 in the feed(xf)=0.45 Mass fraction of C6H6 in the Ove...

Q: A centrifugal pump is used to elevate toluene (ρ = 867 kg/m3) from Tank 1 situated at  10 m from gro...

A: Note: Since we are entitled to answer only 3 subparts, we’ll answer the first three. Please resubmit...

Q: (i) Calculate the molarity of MgSO4 in a solution containing 1.5 g ofMgSO4 in a volume of 250 mL?(ii...

A: Mass of MgSO4 =1.5 gVolume of MgSO4 = 250 mL and  Volume = 100 mL  Molarity of MgSO4 = 0.076 M 

Q: Calculate the entropy change ΔS and comment on the sign of the change. NH4Cl(s) → NH4Cl (aq) Values ...

A: Entropy (S) is a thermodynamic property that measures the degree of randomness or disorder-ness of t...

Q: 3. When should weighing paper be used, as opposed to a weigh boat? A. Weighing paper should be use t...

A: Answer: Option A) Weighing paper should be use to weigh out small quantities

Q: Example:- Convert The Lellowing units in US Saystem Jen 5m = inch 6.5 em = inch (2) 3 4.5 m = (4 7.3...

A: 1. Convert 5 m to inch as follows: 1 cm=0.394 inch 1 m= 39.37 inch Therefore, 5 m=5×39.37 inch=196.8...

Q: Hi! Can you answer this? Thanks. I. In filtration using calculus, the fictitious volume (Ve) is con...

A: The two given statements to be checked for their authenticity are: In filtration using calculus, th...

Q: Malic acid (C4H6O5) is one of the alpha hydroxy acid which is naturally found in apples. The reactio...

A: pH of a buffer solution can be expressed by following formula pH = pKa + log (concentration of salt ...

Q: i need the answer quickly

A: Chemical Composition by weight to a sample of the cement is: CaO SiO2 Al2O3 Fe2O3 SO3 MgO LOSS ...

Q: Question 1 please

A: Chemical potential energy is the energy stored in the chemical bonds of a substance.  As with any fo...

Q: Describe the different zones in batch sedimentation. What is the critical point? How do you calculat...

A: Sedimentation is a physical treatment process by which water can be treated by using gravity to remo...

Q: Consider the following chemical reaction: N2 + O2 → 2 NO If 10.0 g of N2 reacts with excess oxygen t...

A: The reaction given is: N2 + O2 → 2 NO Mass of N2 reacted with excess O2, mN2 = 10.0 g The molar mass...

Q: 1 kg of ethane (perfect gas) is compressed from 1.1 bar, 27°C according to a law pV1.3 = constant, u...

A: This question can be solved by the help of first law of thermodynamics in the poly-tropic process. E...

Q: Chemistry (Question - 3)

A: 4KClO3 (s) --- > 3 KClO4 (s) + KCl (s)  Temperature = 25°c = 298 K  ∆H°KClO3 = - 397.7 KJ.mol-1  ...

Q: 6. A solution with relatively low % of absorbent and relatively high % of refrigerant is called OWea...

A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want...

Q: Use the balanced equation: C6H12 + 9O2 ⇒ 6CO2 + 6H2O   If you have 1.75 moles of C6H12, how much CO2...

A: The amount of CO2 that can be made is to be calculated.

Q: What are the stages of scaling up a process from lab scale to industrial scale?

A: Scaling up is a process to scale-up and optimize a manufacturing process from lab scale industry to ...

Q: 1. How many grams of the excess reagent are left over when 6.00 g of CS gas react with 10.0 g of Cl ...

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Q: A petroleum product of viscosity 0.5 m Ns/m² and density 700 kg/m³ is pumped froma tank through a pi...

A: Viscosity (u)= 0.5 m Ns/m^2 Density (p)= 700 kg/m^3 Diameter (d)= 0.15 m  100m away Pressure drop al...

Q: explain each of the elements of the bernoulli equation

A: Bernoulli Equation

Q: 2) a) Shortly explain the structure of Styrene-Butadiene-Styrene (S-B-S)?

A: A substance or materials that consist of large chain of molecules that consist of many repeating uni...

Q: Exactly 5.00 ml aliquots of a solution containing phenobarbital were measured into 50.00 ml volumetr...

A: Volume of standard solution 0 0.5 1.0 1.5 2.0 Fluorometer signals 3.26 4.80 6.41 8.02 9.56

Q: 10.12 The following equilibrium data have been obtained for the adsorption of nitrogen dioxide on si...

A: In mass transfer, adsorption isotherm is described as a graph that signifies the difference in the a...

Units and Dimensions

Dimensions are the basic concepts of the measurement of quantities. Units are the means of expressing the dimensions. For instance, an area has a dimension of L2 and a unit of m2.