QUESTION 5 he desaty of an unknown substance 3.3x 10kem what i the dansity of this...
¥ Question Completion Status: The density of an unknown substance Is 9.5 x 103 kg/m3. what is the density of this substance In g/cm22 1kg 1000g and 1 m 100cm. QUESTION 6 The dimension of a quantity is the type of base unit that describes that quantity. The three common base unlts are length [L] mass [M] and time IT Example: The dirmension of area is length square or [L2]. The unit of length can vary, but area is always...
2-4. not partial please
Problem 3 An unknown substance shows a molècular ion peak at m/z= 170 with a relative intensity of 100. The M+ 1 peak has an intensity of 13.2, and the M+2 peak has an intensity of 1.00. What is the molecular formula of the unknown? Can you propose a structure? Problem 4: An unknown hydrocarbon has a molecular ion peak at m/z = 84, with a relative intensity of 31.3. The M+ 1 peak has a...
5.) The following is a heating curve for I mole of an unknown substance. Answer the following on the basis of this diagram. 350 Temperature (K) Vapor 0 10 50 60 20 30 40 Heal added (J/mol) a.) Estimate the heat of vaporization for this substance. MO b.) Estimate the heat capacity of the solid of this substance in J/mol-K 10.87 MOL malu c.) Estimate the boiling point of this substance.
Question 5 4p An unknown substance weighs 23.75kg when it is first brought to the lab. After a week in the lab, a technician weighs it again and finds it weighs 7.81kg. Assuming the substance is decaying exponentially, calculate the decay factor from week to week. Write your answer as a decimal, rounded to the nearest hundredth.
Question Completion Status Question: If 1 mile 1.609 km, what is 55 miles per hour in meters per second (m/sy? QUESTION 4 When a unit occurs in power greater than 1, then the unit in the conversion factor must also be ralsed to the same power. Make sure to raise the number in the conversion factor to the same power as well. Example: if 1 in -2.54 cm, how many cm2 are there in 4.6 in22 Since the power of...
Interpret the IR spectra for an unknown solid substance.
Label all major bond types, and identify the
unknown substance.
The substance may be:
Acetamide
Benzoic Acid
Benzophenone
p-Aminobenzoic Acid
Triphenyl Methanol
commomnom 1% 4000 3500 3000 2500 cm-1 2000 1500 1000 600
Interpret the IR spectra for an unknown liquid substance.
Label all major bond types, and identify the
unknown substance.
The substance may be:
Acetone
Benzaldehyde
Diethyl Ether
Ethyl Acetate
Methanol
Methyl Benzoate
Toluene
1% "48000 3500 3000 2500 2000 1500 1000 600 cm-1
Based on the spectra, what is my unknown molecule? I think it
is cyclohexanol, but I am not sure. Thanks!
ALYSON VK #2 PPM 60 30 2010 6 carbons Cyclohexeno! 2,5 Transmittance [%] 50607080 3500 བཙཔཉིཛཁ9 3500 3357.66 - ༥ 3000 2924 5 - 3000 2: 2665.03 - 2500 2500 Wavenumber cm-1 2000 1419E!7 ས915) 2000 703 14 1500 1500 1000 1000 500 5060708090 100
Problem # 3: what is the molar mass of 35.0 g of an unknown substance that depresses the freezing point of 0.350 kg of water 0.50 °C? K, for water is 1.86 °C/m. [10 points
02. (20 POINTS) An unknown substance is empirically determined to be 40 percent carbon by weight, 6.67 percent hydrogen, and 53.33 percent oxygen. Its molecular weight is roughly 55 g/mol. gml. Determine the molecular formula and its correct molecular weight. (a) List all the assumption you may use in the solution (b) The solution should be organized and neat (c) The final answer should be labeled ( draw a box around your answer) Question Max Points Points D1 25 3...