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QUESTION 3 If the molecular weight of a semiconductor is 38 grams/mole and the diamond lattice...
A halogen molecule Metal-Chlorine4 molecule reacts with silicon to form silicon tetrachloride. What is the ratio...
A halogen molecule Metal-Chlorine4 molecule reacts with silicon to form silicon tetrachloride. What is the ratio of silicon removed to metal deposited if the metal has a density of 15.3 gm/cc, and a molecular weight of 187.2 grams/mole. A chlorine molecules (CL2) has a molecular weight of 70.91 grams/mole. 3 significant digits and fixed point notation
What is the molecular weight (in grams per mole) of a gas sample that has a...
What is the molecular weight (in grams per mole) of a gas sample that has a mass of 3.07 g in a 2.248 L flask at a temperature of 27.3 ºC and a pressure of 0.597 atmospheres?
QUESTION 38 A solution is made up of 5.45 grams of an unknown solid in 100...
QUESTION 38 A solution is made up of 5.45 grams of an unknown solid in 100 grams of bromoform (K-14.4). The solution has a freezing point 4.32 °C lower than the freezing point of Bromoform. What is the molar mass of the unknown solid (g/mole)? Answer in 3 significant figures and do not include units. QUESTION 39 P,000 Calculate the enthalpy change for the reaction P.O.+ 2018) Given the following enthalpies of reaction: 30% AH-1640.1 kJ P РО) PO P+...
Density of water = 998 kg/m^3 Molecular weight of CaCO3 = 100 g/mole please help to...
Density of water = 998 kg/m^3
Molecular weight of CaCO3 = 100 g/mole
please help to solve this problem
Determine the concentration, molarity, normality, and mole fraction of a 2-L solution containing 50 g calcium carbonate (CaCO3). Assume that the density of water is based on a temperature of 20°C/68°F.
QUESTION 3 What current in microamps do we get with an ideal abrupt junction silicon diode...
QUESTION 3 What current in microamps do we get with an ideal abrupt junction silicon diode with (100 micron)M2 area and doped with acceptors at 6.9 1015/cc, 1000 times more donor doping, and forward bias of 0.52 V. Assume e- & e+ mobilities of 1500 & 500 cmA2/(V*s), and minority carrier lifetimes of 1 microsecond. Vt-0.02585V, Answer should be to two significant digits with fixed point notation.
3 part question Determine the theoretical yield (IN GRAMS) for 1-bromobutane if you start with 109...
3 part question
Determine the theoretical yield (IN GRAMS) for 1-bromobutane if you start with 109 mmol of butanol nd excess acid and sodium bromide. (Note: the stoichiometric relationship between butanol and romobutane is 1:1) Convert the theoretical yield of 1-bromobutane to moles. Convert the moles to mmol. please clearly explain how to do this using the below information with thr correct sig figs Structure for 1-butanol Molecular weight for 1-butanol density for 1-butanol Bonpoint butanol 117.7°C 74.12 gimol 81...
QUESTION 3 If a P+N diode has 7 mA of forward current, hole minority carrier lifetime...
QUESTION 3 If a P+N diode has 7 mA of forward current, hole minority carrier lifetime is 0.8 ms, and a reverse current of 88 mA, what is ts in ms? Use two significant digits, fixed point notation, and assume equation 8.8 is valid.
QUESTION 3 1 point Not included in the table below is a diamond with a weight...
QUESTION 3 1 point Not included in the table below is a diamond with a weight of 1.50 carats. Find the regression equation, letting the first variable be the predictor variable. Find the best predicted price for this diamond by following the prediction procedure summarized in Figure 10-5 (page 521). Is the result close to the actual price of $16,097? Weight 0.3 0.4 0.5 0.5 1.0 0.7 Price 51011511343 1410 5669 2277 D = 10800 + 2900x, best predicted value...
Question 1 : a) Show the calculation of the mass of Al2(SO4)3 needed to make 200ml...
Question 1 : a) Show the calculation of the mass of Al2(SO4)3 needed to make 200ml of a 0.250 M solition. report your answer to 3 significant figures. b) show the calculation of the volume of 0.667 M solution which can be prepared using 37.5 grams of Ba(NO3)2 c)show the calcultion of the freezing point of a solution made by dissolving 15.6 grams of the nonelectrolyte C3H6O3 in 200 geams of water. Kf for water is 1.86, freezing point of...
1) For the following determine the molecular weight and the molar mass. Round all mass to two decimal points. (5) S...
1) For the following determine the molecular weight and the molar mass. Round all mass to two decimal points. (5) Substance Melecular weight am Molar mass (g) LiP MON ZASO, Nichek) nitrate Irell) phosphate For the following mole calculations use dimensional analysis, showing the canceling of the units, and retain in your answer the number of significant figures in the measurements that is initially given to you. 2) Convert the following mass values to moles or mole values to masses....
QUESTION 38 A solution is made up of 5.45 grams of an unknown solid in 100 grams of bromoform (K-14.4). The solution has a freezing point 4.32 °C lower than the freezing point of Bromoform. What is the molar mass of the unknown solid (g/mole)? Answer in 3 significant figures and do not include units. QUESTION 39 P,000 Calculate the enthalpy change for the reaction P.O.+ 2018) Given the following enthalpies of reaction: 30% AH-1640.1 kJ P РО) PO P+...
Density of water = 998 kg/m^3
Molecular weight of CaCO3 = 100 g/mole
please help to solve this problem
Determine the concentration, molarity, normality, and mole fraction of a 2-L solution containing 50 g calcium carbonate (CaCO3). Assume that the density of water is based on a temperature of 20°C/68°F.
QUESTION 3 What current in microamps do we get with an ideal abrupt junction silicon diode with (100 micron)M2 area and doped with acceptors at 6.9 1015/cc, 1000 times more donor doping, and forward bias of 0.52 V. Assume e- & e+ mobilities of 1500 & 500 cmA2/(V*s), and minority carrier lifetimes of 1 microsecond. Vt-0.02585V, Answer should be to two significant digits with fixed point notation.
3 part question
Determine the theoretical yield (IN GRAMS) for 1-bromobutane if you start with 109 mmol of butanol nd excess acid and sodium bromide. (Note: the stoichiometric relationship between butanol and romobutane is 1:1) Convert the theoretical yield of 1-bromobutane to moles. Convert the moles to mmol. please clearly explain how to do this using the below information with thr correct sig figs Structure for 1-butanol Molecular weight for 1-butanol density for 1-butanol Bonpoint butanol 117.7°C 74.12 gimol 81...
QUESTION 3 If a P+N diode has 7 mA of forward current, hole minority carrier lifetime is 0.8 ms, and a reverse current of 88 mA, what is ts in ms? Use two significant digits, fixed point notation, and assume equation 8.8 is valid.
QUESTION 3 1 point Not included in the table below is a diamond with a weight of 1.50 carats. Find the regression equation, letting the first variable be the predictor variable. Find the best predicted price for this diamond by following the prediction procedure summarized in Figure 10-5 (page 521). Is the result close to the actual price of $16,097? Weight 0.3 0.4 0.5 0.5 1.0 0.7 Price 51011511343 1410 5669 2277 D = 10800 + 2900x, best predicted value...
1) For the following determine the molecular weight and the molar mass. Round all mass to two decimal points. (5) Substance Melecular weight am Molar mass (g) LiP MON ZASO, Nichek) nitrate Irell) phosphate For the following mole calculations use dimensional analysis, showing the canceling of the units, and retain in your answer the number of significant figures in the measurements that is initially given to you. 2) Convert the following mass values to moles or mole values to masses....
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