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How many grams of must be added to 250 of water to lower the vapor pressure by 1

How many grams of must be added to 250 of water to lower the vapor pressure by 1.30 at 40 assuming complete dissociation? The vapor pressure of water at 40 is 55.3 .

How many grams of must be added to 250 of water to lower the vapor pressure by 1

How many grams of must be added to 250 of water to lower the vapor pressure by 1.30 at 40 assuming complete dissociation? The vapor pressure of water at 40 is 55.3 .

How many grams of potassium chlorate, KCIO_3, decompose to form potassium chlori

How many grams of potassium chlorate, KCIO_3, decompose to form potassium chloride and 250. mL of O_2, at 400 K and 0.850 atm? Molar Mass (KCIO_3) = 122.55 g/mol 2KCIO_3 (s) right…

How many grams of potassium formate, KHCOO, must be added to 500. mL of a 0.0700

How many grams of potassium formate, KHCOO, must be added to 500. mL of a 0.0700 M solution of formic acid, HCOOH, to produce a buffer solution with a pH of 3.50? (Any change in t…

How many grams of potassium hydrogen phthalate are needed to prepare 250 mL of a

How many grams of potassium hydrogen phthalate are needed to prepare 250 mL of a 0.1000 mol/L solution of potassium hydrogen phthalate. (MW= 204.23) (Round off answer to nearest 0…

How many grams of silver chloride can be prepared by the reaction of 105.0 mL of

How many grams of silver chloride can be prepared by the reaction of 105.0 mL of 0.21 Msilver nitrate with 105.0 mL of 0.14 M calcium chloride? g Calculate the concentrations of e…

How many grams of silver will be formed when 27.9 g of copper reacts with excess

How many grams of silver will be formed when 27.9 g of copper reacts with excess silver nitrate, according to the balanced equation below? 2AgNO_3 rightarrow Cu rightarrow Co(NO_3…

How many grams of solid NaCl (Formula Weight: 58.44 g/mole) are required to prep

How many grams of solid NaCl (Formula Weight: 58.44 g/mole) are required to prepare 150 mL of a 250mM solution? If you dissolve 15mg glucose (Formula Weight: 180.16g/mole) in 10mL…

How many grams of solid NaOH are required to prepare 200-mL of a 0. 05 M solutio

How many grams of solid NaOH are required to prepare 200-mL of a 0. 05 M solution? What will be the concentration from Problem 1 expressed in % w/v? How many milliliters of 5M NaC…

How many grams of solid NaOH are required to prepare 200-mL of a 0.05 M solution

How many grams of solid NaOH are required to prepare 200-mL of a 0.05 M solution? What will be the concentration from Problem 1 expressed in % w/v ? How many milliliters of 5 M Na…

How many grams of solid NaOH would have to be added to 270 mL of 0.124 M solutio

How many grams of solid NaOH would have to be added to 270 mL of 0.124 M solution of NH4Cl to give a mixture with a pH of 9.26? Assume all the NaOH dissolves with no volume change…

How many grams of solid sodium hypochlorite should be added to 1.00 L of a 7.68×

How many grams of solid sodium hypochlorite should be added to 1.00 L of a 7.68×10-2M hypochlorous acid solution to prepare a buffer with a pH of 6.780 ? Answer in grams sodium hy…

How many grams of steam at 100 degree C would be required to raise the temperatu

How many grams of steam at 100 degree C would be required to raise the temperature of 35.8 g solid benzene (C_6 H_6) from 5.5 degree C to 45.0 degree C? Assume that heat is only t…

How many grams of the following compounds do you need to have 1 mole? CaCl NaOH

How many grams of the following compounds do you need to have 1 mole? CaCl NaOH K_3PO_4 How many grams of CaCl would you need to make 1 M solutions in live following volumes: 1 L …

How many grams of water can be healed from 28 degree C to 73 degree C with 500.0

How many grams of water can be healed from 28 degree C to 73 degree C with 500.0 calories of heat? When 300.0 calories of heat are added to 32-5 g of copper (specific heal of 0.09…

How many grams ofethylene glycol, C2H4(OH)2, must be dissolved in 2000.0grams of

How many grams ofethylene glycol, C2H4(OH)2, must be dissolved in 2000.0grams of water to lower the preezing point to -29.75 deg C? If thedensity of ethylene glycol is 1.12 g/mL, …

How many grams ofsodium carbonate are present after the reaction iscomplete? How

How many grams ofsodium carbonate are present after the reaction iscomplete? How many grams ofsilver nitrate are present after the reaction iscomplete? How many grams ofsilver car…

How many grams ofwater vapor were formed? (Assume that water vapor is the onlypr

How many grams ofwater vapor were formed? (Assume that water vapor is the onlyproduct.) How much fluorine(in grams) was formed? How much fluorine(in grams) did the second sample p…

How many half-lives (n) will it take a source to decay by a factor of 1/512? [Re

      How many half-lives (n) will it take a source to decay by a factor of 1/512? [Recall: Cn=C0(1/2)^n = Co/512] Use your measured value of Th and calculate the Ba-137m counts (…

How many haploid genomes are represented in a gamete ? how many haploid genome i

How many haploid genomes are represented in a gamete ? how many haploid genome is represented during metaphase ? Could you please explain why you chose the answer given. Thanks. H…

How many harmful de novo (mutations not found in either parent) mutations would

How many harmful de novo (mutations not found in either parent) mutations would you expect a child with a 29 year old father to have? In order to answer this question, there are a…

How many heating degree-days would there be in a city when the maximum temperatu

How many heating degree-days would there be in a city when the maximum temperature is 53 degree F and the minimum temperature is 25 degree F? How many cooling degree-days would th…

How many hermaphrodites are produced of cross-fertilization of Caenorhabditis el

How many hermaphrodites are produced of cross-fertilization of Caenorhabditis elegans? A. 99% C. 50% D. 100% The regions on Y chromosome that share homology with X chromosomes and…

How many high tides (or peaks) are there each day? Is there more than one, are t

How many high tides (or peaks) are there each day? Is there more than one, are they the same height above MLLW? How many low tides (or troughs) are there each day? If there is mor…

How many high-energy phosphate bonds are in the ATP molecule? In the common cata

How many high-energy phosphate bonds are in the ATP molecule? In the common catabolic pathway, a number of important molecules act as carriers (transfer agent). Which to the carri…

How many homes should be built in a new residential area. The firm has some mono

How many homes should be built in a new residential area. The firm has some monopoly power in its local market. Its demand is estimated to be Q = 10 - 1/6 P Its cost function is C…

How many hormone levels regulated? An endocrine gland can respond to the blood l

How many hormone levels regulated? An endocrine gland can respond to the blood level of hormone it produces. A hormone can trigger a second gland to secrete a hormone that produce…

How many hydrogen atoms are in 1.0 g of C_2H_4? 6.2 times 10^-2 2.1 times 10^22

How many hydrogen atoms are in 1.0 g of C_2H_4? 6.2 times 10^-2 2.1 times 10^22 atoms 4.3 times 10^22 atoms 8.6 times 10^22 atoms For $.50/kg, one can purchase either KNO_2 or NaN…

How many hydrogen bonds will be involved in base pairing in a DNA molecule of 50

How many hydrogen bonds will be involved in base pairing in a DNA molecule of 50 base pairs that contains 15 cytosine bases? a. 45 b. 100 c. 115 d. 135 e. 150 You are a research a…

How many hydrogen molecules are in a tank that has 0.76 moles of hydrogen molecu

How many hydrogen molecules are in a tank that has 0.76 moles of hydrogen molecules? 8. How many atoms of potassium make up 2.00 moles? 9. How many molecules of water make up 1.52…

How many hydrogen molecules are in a tank that has 0.76 moles of hydrogen molecu

How many hydrogen molecules are in a tank that has 0.76 moles of hydrogen molecules? 8. How many atoms of potassium make up 2.00 moles? 9. How many molecules of water make up 1.52…

How many independent windings arc in an LVDT? 1 2 3 4 What is the sensitive axis

How many independent windings arc in an LVDT? 1 2 3 4 What is the sensitive axis of this accelerometer? A B Both It depends on the installation What does FFT of acceleration vs ti…

How many independent windings arc in an LVDT? 1 2 3 4 What is the sensitive axis

How many independent windings arc in an LVDT? 1 2 3 4 What is the sensitive axis of this accelerometer? A B Both It depends on the installation What does FFT of acceleration vs ti…

How many individuals participated in a matched-subjected design with df = 12? 26

How many individuals participated in a matched-subjected design with df = 12? 26 13 11 14 Dr. z is interested in the effects of an antidepressant on men and women of three age gro…

How many instruction cycles does it take to execute the following instructions?

How many instruction cycles does it take to execute the following instructions? start tracing here.. mov #2, W0 mov #3, WI mov #6, W2 add WO , WI , WI cp Wl, W2 bra LTU, loop loop…

How many integer solutions are there to the equation x1 + x2 + x3 + x4 = 132 pro

How many integer solutions are there to the equation x1 + x2 + x3 + x4 = 132 provided that x1 > 0, and x2, x3, x4 ge 0? What if we add the restriction that x4

How many integers must you select {without replacement) from the range [1,101] b

How many integers must you select {without replacement) from the range [1,101] before you can ensure: at least one odd number was selected? at least one even number was selected? …

How many intermediates arc formed in the reaction? Which letters represent trans

How many intermediates arc formed in the reaction? Which letters represent transition states? What is the fastest step in the reaction? Which is more stable, A or G? Does A or E f…

How many isomeric chloroalkanes have the molecular formula shown below? C_4 H_9

How many isomeric chloroalkanes have the molecular formula shown below? C_4 H_9 Cl 2 3 4 5 Which of the following functional groups if bonded to a three-carbon chain would have th…

How many isomers of C2H2C12 are polar? none 1 2 3 Which statement about addition

How many isomers of C2H2C12 are polar? none 1 2 3 Which statement about addition reactions between alkenes and HBr is false? The addition occurs at the double bond. Bromine attack…

How many iterations of the for loop does this program perform? int main(void) {

How many iterations of the for loop does this program perform? int main(void) { int a[] = {1, 2, 3, 4}; int i; for (i = 0; i < 4; i++) {     if (a[i] < 0) return 1;     else…

How many iterations will this code segment make? How many comparisons are made d

How many iterations will this code segment make? How many comparisons are made during the execution of this code segment? What would the code segment output? Rewrite the for-loop …

How many joules of energy does a 8 W nightlight dissipate in 8 h? How many kilow

How many joules of energy does a 8 W nightlight dissipate in 8 h? How many kilowalthours does it dissipate ? How long must a steady current of 1.4 A exist in a resistor that has 3…

How many kJ of heat are needed to completely vaporize 43.2 g of H2O? The heat of

How many kJ of heat are needed to completely vaporize 43.2 g of H2O? The heat of vaporization for water at the boiling point is 40.6 kJ/mole. How many kJ of heat are needed to com…

How many kJ of heat are needed to completely vaporize 43.2 g of H2O? The heat of

How many kJ of heat are needed to completely vaporize 43.2 g of H2O? The heat of vaporization for water at the boiling point is 40.6 kJ/mole. How many kJ of heat are needed to com…

How many kg/h of 90wt% propylene glycol and 1wt% propylene glycol must be combin

How many kg/h of 90wt% propylene glycol and 1wt% propylene glycol must be combined to produce 1000L/h of 1M propylene glycol solution? Given: MW of propylene glycol = 76 g/mol. a.…

How many kilegrams solid nickel can be b. Nickel sulfide, NS, has standard ethal

How many kilegrams solid nickel can be b. Nickel sulfide, NS, has standard ethalpy of Sormation - 8130kmol Determine the amount of energy tin k3) to needed to remove the nicket me…

How many kilo grams solid nickel can\'t be obtained from 7.50 cubic feet of mill

How many kilo grams solid nickel can't be obtained from 7.50 cubic feet of millerite ? 1. Nickel can be obtained from ore containing millerite, NIS, which has density 5.55 e/em2 (…

How many kilocalories do I need on daily basis? This is a question that most peo

How many kilocalories do I need on daily basis? This is a question that most people who are healthy and maintain their body weight do not have to worry about. They maintain energy…

How many kilograms are in 225 grams? How many milliliters are in 38.0 L (microli

How many kilograms are in 225 grams? How many milliliters are in 38.0 L (microliters)? How many nanometers are in 1.14 cm? How many Hz are in 0.130 MHz? The surface temperature on…