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Considering the given equation as. CaC2(s)+2H2O(l) = C2H2(g)+Ca(OH)2(aq) in which Acetylene gas (C2H2) is produced a. determine how many moles of water are needed If 32.0 g of CaC2 are consumed in this reaction,? And also determine how many moles of each product would form?
What is the dew point temperature of a gas mixture that is 30% n-hexane, 30% in-heptane, and 40% air at 1 atm? What is the composition of the first "drop"?
A voltaic cell consists of an Au/Au3+ electrode (E° = 1.50 V) and a Cu/Cu2+ electrode (E° = 0.34 V). Calculate [Au3+] if [Cu2+] = 1.20 M and Ecell = 1.13 V at 25°C.
Use the data below to calculate the value of Kc H2(g) 2 H(g) Kc = 0.00473 1/2 H2(g) + 1/2 O2(g) OH Kc = 0.643 Give your answer to 3 significant figures
An insoluble non reactive solid metal sphere weighing 41.55 g is added to 35.82 mL of water in a graduated cylinder. If he density of the metal is 11.91 g/mL
Describe each of the following equations in terms of 1)number of particals and 2)number of moles: a) 2Al(s)+3Cl2(g)--->2AlCl3(s); b) 4HCl(g)+O2(g)--->2Cl2(g)+2H2O(g).
The amount (N = grams) of radioactive material present in a sample as a function of time is given by the following equation, where No is the amount present at t = 0. : N (t) = No e^-kt At Great Basin College, we have a specimen of a highly radioac..
Determine the theoretical yield and percent yield if 21.8g of K2CO3 is produced by reacting 27.9g KO2 with 29.0L of CO2 (one mole of CO2 occupies 22.4L). The GFW (KO2)= 71.10 , GFW (K2CO3)= 138.21 , GMW (CO2)= 44.01
If the dose of Na2CO3 is 100 mg/L , the volume of EDTA is 9.5 mL and the total hardness is 95 mg/L as CaCO3 calculate the % total hardness removed.
Using the equation E0cell = E0cathode - E0anode, and the reference value of E0 for Cu(II)/Cu(s) for the role that copper plays in this overall cell reaction, determine the value of the standard potential for the half-reaction Zn2+(aq) + 2e- -> Zn(..
Some physical properties of water are shown below. freezing point 0.00°C boiling point 100.00°C Kf 1.86°C/m Kb 0.512°C/m What is the freezing point of a solution of calcium chloride that contains 26.0 g CaCl2 dissolved in 330. g of water
evaluate its purity and to determine whether it might be identical to a given sample of an illegal drug, a white crystalline solid. Clearly explain what you would do, why you would do it, and how you interpret your results
what is the chemical calculation to figure out the following: what mass of the indicated solute does the following solution contain: 17.8 ml of 0.119 M CaCl2
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