True or false?
True False 14:0 (n-tetradecanoic acid) will
have a lower melting temperature than 18:0 (n-octadecanoic
acid).
Its true. 14:0 (n-tetradecanoic acid) has a melting temperature of 52C whereas 18:0 (n-octadecanoic acid) melting temperature is 69.6.
True or false? True False 14:0 (n-tetradecanoic acid) will have a lower melting temperature than 18:0 (n-octadecanoic...
True or False: HIO3 is a stronger acid than HIO2 Select one: True False True or False: H2PO4 is a stronger acid than HPO47- Select one: True False True or False: H2S is a stronger acid than H2Se Select one: True False True or False: He is a stronger acid than HCI Select one: True False True or False: H2SO4 is s stronger acid than H2SO3 Select one: True False
Mandelic acid has two hydroxyl groups; yet its melting point is lower (119 oC) than the melting point of benzoic acid (122 oC). Explain.
True or False: HCIO is a stronger acid than HIO Select one: O True O False True or False: H2CO3 is a stronger acid than H2SO4 Select one: True O False True or False: NH3 is a stronger acid than PH3 Select one: O True O False True or False: Hl is a stronger acid than HBr Select one: O True False True or False: HCl is a stronger acid than H2S Select one: O True O False
Under the CAPM, an asset with a lower standard deviation than the market can never have a β less than −1. True or false?
True or False Eutectic mixtures have a sharp melting point, since both components melt simultaneously. 5. 6. Melting point ranges can be used as criterion for purity True or False Eutectic mixtures have a sharp melting point, since both components melt simultaneously. 5. 6. Melting point ranges can be used as criterion for purity
QUESTION 10 True or false: Co2 concentrations will be LOWER in September 2019 than they are today (February 2019) at Mauna Loa, Hawaii. O True O False
Which of the statements are true? Fats that contain more unsaturated fatty acid residues than saturated fatty acid residues are more likely to be liquid at room temperature. Tracleucerols (triglycerides) always contain three identical fatty acids. Unsaturated fats have higher melting points than saturated fats. Triacylglycerols (triglycerides) are composed of fatty acid residues and glycerol. Unsaturated fats are more likely than saturated fats to be liquid at room temperature.
2. True or false: a. Schottky barrier diodes typically have lower leakage current than p-n junction diodes b. The semiconductor drift current is proportional to the magnitude of the electric field. c. The ideal subthreshold slope for a MOSFET increases with increasing temperature d. For a MOSFET the density of inversion-layer charge is QinrsonCx VGS VFB e. For a MOSFET the following equation is correct: on inversion -Raccumulation VGS-VFB f. For a BJT the following equation is correct: -- 1-a...
True/False When determining a melting point, it is desirable to use as much material as possible, thus ensuring that you can observe a true equilibrium between solid and liquid phases. True/False Although a preliminary melting point can be done quickly to get an estimate of the approximate melting range, a sharp and accurate melting point value requires heating no faster than 1o – 2o per minute. True/False If you wish to repeat a melting point experiment, it is desirable to...
True or False 14. Dividends paid to common shares have no impact on the calculation of earnings per share. True or False 15. Earnings per share indicates the net income earned for each share of common and preferred stock. True or False 16. A company can be earning net income, but still have a negative cash flow. True or False 17. Issuance of common stock is classified as an investing activity on the Cash Flow Statement. True or False 18....