Topic :: Chemical Formula





Chemical Formula Interview Questions
Questions Answers Views Company eMail

BIOCHEMICAL ENGINEERING INSTRUMENTATION - EXAMPLE 29.4 : The resolution of separation, Rs for chromatography is given by the formula Rs = (difference in retention time) / (average width at the base). In a chromatogram, 3 peaks a, b and c are found. Average widths W at the bases of the solutes are : Wa = 20 s, Wb = 40 s, Wc = 30 s. Resolutions of separation, Rs for solutes b and c in comparison to a are 2 and 4 respectively. The differences in retention times T for b and c in comparison to a are (Tb - Ta) and (Tc - Ta), Ta = Tc - Tb : (a) Form 2 equations involving Rs as a function of Wa, Wb, Wc, Ta, Tb and Tc. (b) Find the values of Ta, Tb and Tc.

1 1526

BIOCHEMICAL ENGINEERING INSTRUMENTATION - EXAMPLE 29.5 : The following formula is used as a reference : (analyte signal) / (internal standard signal) = (f-factor) x (concentration of analyte) / (concentration of internal standard). A solution containing 3 mM of analyte and 4 mM of internal standard gave peak signals of 2 and 3 mamps respectively. Another similar solution containing 2 mM of analyte and 1 mM of internal standard gave peak signals of 1 and 4 mamps respectively. Find the average f-factor.

1 1394

ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.18 : An investor is planning to purchase a small office for biochemical engineering consultancy on loan. In the calculation of the discount of payment in arrears, the following formula is used : y = 1 / (1 + r) ^ 1 + 1 / (1 + r) ^ 2 + 1 / (1 + r) ^ 3 + ... + 1 / (1 + r) ^ n where y = present value, r = interest rate of discount, n = number of payment, ^ = power used in certain computer languages for mathematics. (a) What is the meaning of : arrears? (b) Find a mathematical equation of y (1 + r). (c) Calculate, in less than 3 terms, y as a function of r and n.

1 1322

ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.37 : A biochemical engineering professional applies 5-step Du Pont formula in the accounting. Let Net Income = A, Earning Before Tax (EBT) = B, Earning Before Interest, Tax (EBIT) = C, Net Sales = D, Total Assets = E, Shareholders Equity = F. Let Tax Burden = A / B = 0.75, Interest Burden = B / C = 1.05, EBIT Margin = C / D = 0.27, Asset Turnover = D / E = 0.66, Return on Equity = A / F = 0.37. (a) Calculate the value of Leverage = E / F. (b) If AB + BC + CD + DE + EF = $$ 141932, find the values of A, B, C, D, E and F.

1 1544

Give the chemical formula of Garnet?

699

Give the chemical formula for Borax?

620

What is the Chemical formula for Epsom salt?

606

give the formula of borax. Borax is chemically called as.

653

Garnet is the ore of which element. Give its chemical formula.

623

Write the chemical formula for epsom salts?

631

What is the chemical formula of alum?

590

What is the chemical formula of xylose?

692

What is xylose? What is its chemical formula?

643

What is chemical formula for borax?

573

what is chemical formula for glass?

587




Un-Answered Questions { Chemical Formula }

Give the chemical formula of Garnet?

699


Give the chemical formula for Borax?

620


What is the Chemical formula for Epsom salt?

606


Garnet is the ore of which element. Give its chemical formula.

623


Write the chemical formula for epsom salts?

631






What is the chemical formula of alum?

590


What is the chemical formula of xylose?

692


What is xylose? What is its chemical formula?

643


What is chemical formula for borax?

573


what is chemical formula for glass?

587


What is the chemical formula for dichromate?

601


What is the chemical formula of detergent?

581


What is the chemical formula for epsom salts?

632


Explain what is the chemical formula of detergent?

552


Explain the chemical formula for dichromate?

595