Description : A cylinder contains oxygen at a pressure of 10 atm and a temperature of 300 K. The volume of the cylinder is 10 liters. What is the mass of the oxygen in grams? Molecular weight (MW) of oxygen is 32 g/mole? a. 125.02 b. 130.08 c. 135.05 d. 120.04
Last Answer : 130.08 {(10atm)(10)(32)/(0.0821) (300K)}
Description : Mass of Earth when it's radius is 6400 km and gravitational field strength is 9.81 N kg-1 is A. 6.0 × 1024 kg B. 5 × 1023 kg C. 40 × 109 kg D. 9 × 1024 kg
Last Answer : 5 × 1023 kg
Description : How many molecules are present in 2.5 liters of gas at STP? w) 5.6 x 1024 molecules x) 1.5 x 1024 molecules y) 6.0 x 1023 molecules z) 6.7 x 1022 molecules
Last Answer : ANSWER: Z -- 6.7 X 1022 MOLECULES
Description : Safe and adequate daily dietary intake of chromium in adults in mg is (A) 0.01–0.02 (B) 0.02–0.03 (C) 0.03–0.04 (D) 0.05–0.2
Last Answer : Answer : D
Description : f an Ethernet destination address is07:01:02:03:04:05, then this is a ______ address. A) unicast B) multicast C) broadcast D) any of theabove
Last Answer : multicast
Description : Find the curl of the vector and state its nature at (1,1,-0.2) F = 30 i + 2xy j + 5xz 2 k a) √4.01 b) √4.02 c) √4.03 d) √4.04
Last Answer : d) √4.04
Description : If D is the degree of a curve, the percentage reduction of gradient, is (A) 0.01 D (B) 0.02 D (C) 0.03 D (D) 0.04 D
Last Answer : Answer: Option D
Description : The volume is measured correct to the nearest (A) 0.01 cum (B) 0.02 cum (C) 0.03 cum (D) 0.04 cum
Last Answer : (A) 0.01 cum
Description : The area is measured correct to the nearest (A) 0.01 sqm (B) 0.02 sqm (C) 0.03 sqm (D) 0.04 sqm
Last Answer : (A) 0.01 sqm
Description : Semiconductors have electron number density of order A. 1024 m-3 B. 1020 m-3 C. 1012 m-3 D. 1023 m-3
Last Answer : 1023 m-3
Description : The mass, in kg, of the earth if its radius is 6400 km, will be a.6 x 1024 b.6 x 1025 c.107 dynes d.6 x 1023 e.6 x 1022
Last Answer : a. 6 x 1024
Description : 38. Consider three sets \( X, Y \) and \( Z \) having 6,5 and 4 elements respectively. A.11 these 15 elements are distinct. Let \( S=(X-Y) \cup Z \). How many proper subsets does \( S \) have?(a) 255(b) 256(c) 1023(d) 1024
Last Answer : 38. Consider three sets \( X, Y \) and \( Z \) having 6,5 and 4 elements respectively. A.11 these 15 ... have? (a) 255 (b) 256 (c) 1023 (d) 1024
Description : The value of Avogadro Number is - (1) 6.023 x 1022 (2) 6.023 x 1023 (3) 6.023 x 1024 (4) 6.023 x 1025
Last Answer : (2) 6.023 x 1023 Explanation: In chemistry and physics, the Avogadro constant is defined as the number of constituent particles (usually atoms or molecules) in one mole of a given substance. It has dimensions of reciprocal mol and its value is equal to.
Description : 17th attack of Sultan Muhammood Ghazni on India was took place in: A. 1025 B. 1024 C. 1023 D. 1026
Last Answer : ANSWER: D
Description : One kilobyte is equal to 1) 1000 bytes 2) 1024 bytes 3) 100 bytes 4) 1023 bytes
Last Answer : 2) 1024 bytes
Description : The mass of one Avogadro number of helium atom is (a) 1.00 g (b) 4.00 g (c) 8.00 g (d) 6.02 × 1023 g
Last Answer : Ans:(b)
Description : Estimate the number of atoms comprising a silicon chip that is 0.2 millimeters by 0.2 millimeters by 0.1 millimeters, given that the density of silicon is 2.34 grams per cubic centimeter, the number of atoms in a gram-weight is approximately 6 x 1023 atoms, and the atomic weight of silicon is 28:
Last Answer : ANSWER: 2 x 1017
Description : Calculate the mass of 12.044 × 1023 carbon atoms -Chemistry 9th
Last Answer : No. of moles of Carbon atoms = No. of atoms/Avogadro constant = 12.044 × 1023/6.022 × 1023 = 2 mole Mass of carbon atoms = No. of moles × atomic mass = 2 × 12 = 24 g
Description : The percentage of fluoride present in normal bone is (A) 0.01–0.03 (B) 0.04–0.08 (C) 0.10–0.12 (D) 0.15–0.2
Last Answer : Answer : A
Description : How many atoms of chlorine are present in 1.70×1023 molecules Cl2?
Last Answer : Chemistry
Description : What number falls in the middle of 0.02 and 0.03?
Last Answer : It is: (0.02+0.03)/2 = 0.025
Description : The Presidency of the United Nations Security Council rotates (in alphabetical order) among its members every: A. 06 months B. 03 months C. 02 months D. 01 month
Description : The percentage of Nitrogen in Air is - (1) 0.94 (2) 0.03 (3) 78.03 (4) 85.02
Last Answer : (3) 78.03 Explanation: By volume, thy air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1%.
Description : Cd for the orifice plate varies from (A) 0.58 to 0.8 (B) 0.93 to 0.98 (C) 0.2 to 0.3 (D) 0.02 to 0.03
Last Answer : (A) 0.58 to 0.8
Description : umber of hooters to be sounded, when accident takes place out station, but main line is clear: (a) 02 long (b) 03 long* (c) 03 long 01 short* (d) none of thes
Last Answer : (b) 03 long*
Description : How many green flags are with Patroller during Hot weather patrolling. a. 02 b. 03 c. 01 d. None of above*
Last Answer : d. None of above*
Description : The percentage of litrogen in Air is (1) 0.94 (2) 0.03 (3) 78.03 (4) 85.02
Last Answer : 78.03
Description : what are the differences between a BMW 745 '03 and '04?
Last Answer : According to Kelley Blue Book , about $3000. ;)
Description : Whats the difference between a BMW 745 '03 and '04?
Last Answer : about a year.
Description : Calculate damping ratio if mass = 200Kg, ω = 20rad/s and damping coefficient = 800 N/m/s A. 0.03 B. 0.04 C. 0.05 D. 0.06
Last Answer : A. 0.03
Description : Calculate damping ratio from the following data: mass = 200Kg ω = 20rad/s damping coefficient = 1000 N/m/s a) 0.03 b) 0.04 c) 0.05 d) 0.06
Last Answer : b) 0.04
Description : Calculate damping ratio from the following data: mass = 200Kg ω = 20rad/s damping coefficient = 800 N/m/s a) 0.03 b) 0.04 c) 0.05 d) 0.06
Last Answer : a) 0.03
Description : P & T Revenue fund was instituted with effect from ---------------- a. 01.04.1925 b. 01.04.1960 c.03.05.1960
Last Answer : b. 01.04.1960
Description : 3599 ÷ 224.95 × 23.04 = ? + 16.98 × 11.03 a) 130 b) 210 c) 180 d) 115 e) 155
Last Answer : 3600 ÷ 225 × 23 = ? +17 × 11 =>16 × 23 = ? + 187 => ? = 368 – 187 =181 ≈ 180 Answer: c)
Description : The electric force between two charges placed in air is 2 Newton. When placed in a medium of ∈r = 80, the force reduced to: (a) 0.029 N (b) 0.025 N (c) 0.03 N (d) 0.04 N
Last Answer : (b) 0.025 N
Description : What is Tony Lewis Update (02/04/2020 , 22:31) ?
Last Answer : Tony Lewis, one of the inventors of the Darkworth -Lewis-Stern or DLS method, has died in a weather-affected limited-overs cricket match. The England and Wales Cricket Board (ECB) made ... awarded the fifth highest honors MBE in the British Empire for their contributions to cricket and mathematics.
Description : What is Harbhajan Singh's update (02/04/2020 , 16:16) ?
Last Answer : After saying goodbye to cricket, Shahid Afridi has joined himself in various developmental works of the society. He is helping poor people in Pakistan with antiseptic soap , relief supplies and food. His one-time rivals ... world. Let us pray to God for every human being. O Guru , bless us all. '
Description : What is Dibala Update (02/04/2020 , 16:43) ?
Last Answer : Brazil and Argentina are the two eternal enemies in world football. But for the last decade, Portuguese superstar Cristiano Ronaldo has snatched Brazil's position. Because he is the main rival of Argentine ... in Argentina. He missed the World Cup and the Copa America for exactly the same reason.
Description : Calculate the phase constant of a conductor with attenuation constant given by 0.04 units. a) 0.02 b) 0.08 c) 0.0016 d) 0.04
Last Answer : d) 0.04
Description : Calculate the dipole moment of a dipole with equal charges 2C and -2C separated by a distance of 2cm. a) 0.02 b) 0.04 c) 0.06 d) 0.08
Description : The alcoholic content of beer is approximately _____. a. 0.02 b. 0.04 c. 0.06 d. 0.08
Last Answer : b. 0.04
Description : A dumpy level was set up at the midpoint between two pegs A and B, 50 m apart and the staff readings at and were 1.22 and 1.06. With the level set up at , the readings at and were 1.55 and ... upwards (B) 0.04 m inclined downwards (C) 0.04 m inclined upward (D) None of these
Last Answer : (B) 0.04 m inclined downwards
Description : 79.93 × 35.02 -59.93 × 85.08 + 74.98 × 44.04 =? a) 1420 b) 1000 c) 1580 d) 870 e) 1260
Last Answer : ? ≈ 80 × 35-60 × 85 + 75 × 44 =2800 – 5100 + 3300 = 1000 Answer: b)
Description : Maximum area of compression reinforcement shall not exceed [ A ] 0.02 bd [ B ] 0.02 bD [ C ] 0.04 bd [ D ] 0.04 bD
Last Answer : [ C ] 0.04 bd
Description : Maximum area of tension reinforcement shall not exceed [ A ] 0.02 bd [ B ] 0.02 bD [ C ] 0.04 bd [ D ] 0.04 bD
Last Answer : [ D ] 0.04 bD
Description : A 3-phase 50HZ SCIM takes a power input of 30 KW at its full load speed of 1440 rpm. Total stator losses are 1 KW. The slip and rotor ohmic losses at full load are a) 0.02, 600 W b) 0.04, 580 W c) 0.04, 1160 W d) 0.04, 1200 W
Last Answer : Ans: 0.04, 1160 W
Description : What is the mass of 6.02 x 10 ^23 atoms of sulfur?
Last Answer : 32g