A diamond, which is pure carbon, contains 0.020 mol of carbon. What is the mass, in grams, of the diamond?
A diamond, which is pure carbon, contains 0.020 mol of carbon. What is the mass, in...
26) Diamond is a pure form of the element carbon. If a 2 carat diamond has a mass of \(0.39626\) ) g. how many carbon atoms are contained in this diamond?A) \(2.38 \times 10^{23}\) atomsB) \(1.99 \times 10^{23}\) atomsC) \(1.99 \times 10^{22}\) atomsD) \(3.97 \times 10^{22}\) atomsE) \(6.58 \times 10^{-25}\) atoms27) Dinitrogen monoxide, or laughing gas \(\left(\mathrm{N}_{2} \mathrm{O}\right)\), is used as a dental anesthetic and as an aerosol propellant. How many molecules of \(\mathrm{N}_{2} \mathrm{O}\) are present in a \(12.6...
Part A How many carbon atoms are there in a 1.3-carat diamond? Diamonds are a form of pure carbon. (1 carat = 0.20 grams) Express your answer to two significant figures. carbon atoms = Part B Calculate the mass of 2.25
How many carbon atoms are there in a 1.3-carat diamond? Diamonds are a form of pure carbon. (1 carat = 0.20 g.) Express the number of atoms to two significant figures.
A sample of pentanol, C5H12O, contains 0.261 mol of the compound. What is the mass of the sample, in grams?
. A compound with a molar mass of about 28 g/mol contains 85.7% carbon and 14.3% hydrogen by mass. Write the Lewis structure for a molecule of the compound.
AUDIENCE PARTICIPATION Mass to Mass Diiodine pentoxide is used in respirators to remove carbon monoxide according to the reaction 1205 + 5 СО → l2 + 5CO2 If my respirator contains 50.0 grams of diiodine pentoxide how many grams of carbon monoxide will I be able to remove and how much iodine will be produced? The molar mass of diiodine pentoxide is 333.80 g/mol. The molar mass of carbon monoxide is 28.01 g/mol. The molar mass of iodine is 253.80...
A buffer contains 0.020 mol of lactic acid (pKa = 3.86) and 0.100 mol sodium lactate per liter of aqueous solution. a. Calculate the pH of this buffer. b. Calculate the pH after 8.0 mL of 1.00 M NaOH is added to 1 liter of the buffer (assume the total volume will be 1008 mL).
We consider two phases of solid carbon: diamond and graphite, with S0diamond= 2.44 J/(K ∙ mol) and S0 graphite = 2.3 ∙ S0diamond . Which of the two carbon modifications is more stable if we establish a thermal equilibrium between them in an isolated system?
1. A sample of dibromodiiodosilane, SiBr2I2, contains 0.0634 mol of the compound. What is the mass of the sample, in grams? 2. Vanadium (V) is element 23 on the periodic table. A sample contains 8.30×1022 atoms of V. Calculate the amount of V.
Modelling bottled gas as pure butane (C4H10), and coal as pure Carbon (C), calculate the CO2 emission factor for each fuel, in grams per megajoule (g.MJ-1 ), using the LHV data on the title page of this paper. LHV of pure Butane ? 46 MJ.kg-1 LHV of pure Carbon ? 32.8 MJ.kg-1 Molar mass of Carbon (C) ? 12 kg.kmol-1 Molar mass of Oxygen (O2) ? 32 kg.kmol-1 Molar mass of Hydrogen (H2) ? 2 kg.kmol-1