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Chemistry
Chemistry
High School
PLEASE HELP!Determine the maximum amount of NaNO that was produced during the experiment. Explain how you determined this amount.
Chemistry
High School
hydration occurs when mineralsgroup of answer choicesare dissolved into water.are turned into rust.absorb water and expand.are removed by frost.
Chemistry
High School
calculate the percent recovery from the acetanilide recrystallization. show calculation with units and correct significant digits. was this recrystallization successful at purifying the acetanilide? use your written observations of the physical appearance of the acetanilide (before and after recrystallization) and the melting point range of the purified acetanilide as evidence.
Chemistry
High School
if 3.43 mol 3.43 mol of an ideal gas has a pressure of 2.17 atm 2.17 atm and a volume of 68.83 l, 68.83 l, what is the temperature of the sample in degrees celsius?
Chemistry
High School
you can purchase nitric acid in a concentrated form that is 70.3% by mass and has a density of 1.41 g/ml. describe exactly how you would prepare 1.15 l of 0.100 m from the concentrated solution.
Chemistry
High School
what are the main reasons that gases deviate from ideal behavior?
Chemistry
High School
what is the molarity of the solution formed by dissolving 10.0g of ca(no3)2 in 250 ml aqueous solution
Chemistry
High School
what volume of a soft drink that is 10.5% sucrose (c12h22o11) by mass contains 78.5 g of sucrose? the density of the solution is 1.04 g/ml.
Chemistry
High School
given 7.00 g of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100 % yield?
Chemistry
High School
0.1mol of a substance has a mass of 4g. Calculate the mass of 1 mol
Chemistry
High School
which type of equilibrium is more likely to omit substances from the equilibrium constant expression? select the correct answer below: homogeneous equilibria heterogeneous equilibria a and b are equally likely there is no correlation
Chemistry
High School
explain why the diborane solution is added drop-wise to a vial cooled in an ice bath over a period of 5 minutes.
Chemistry
High School
Enter your answer in the provided box. Calculate the maximum wavelength of light (in nm) required to ionize a single potassium atom. The first ionization energy of K is 419 kJ/mol.
Chemistry
High School
how many grams of glucose (c6h12o6 ) would you need to prepare 1.25 l of 4% (by mass) glucose solution? assume that the percentage by mass is the number of grams per 100 ml of solution.
Chemistry
High School
g which of the following is an important organic solvent? a. acetone b. menthone c. phenol d. citral
Chemistry
High School
half of the estuarine area has waters falling below a certain do concentration level, and the other half has levels above that level. what is that level, in mg/l?
Chemistry
College
Circle the larger one of each pair or grouping below:Cr+ or Cr3Ge, Br, Ca, or Ga
Chemistry
High School
the unit cell for perovskite is shown. this is a mineral containing calcium, titanium, and oxide ions. the titanium is the grey sphere, the calcium ions are black spheres, and the oxide ions are white spheres. what is the empirical formula of the salt.
Chemistry
High School
which species will have an ir spectrum? select one or more: nitrogen methane water vapor carbon dioxide oxygen argon
Chemistry
High School
in which situations is there a point to the left of the particles where an electron will be in equilibrium? (select all that apply.)
Chemistry
High School
223.0 mg is the mass of benzil while 363.3 mg is the mass of dibenzylketone. what is the theoretical yield of the reaction, in milligrams?
Chemistry
High School
what is the molecular geometry if you have a double bond, a single bond and 1 lone pair of electrons around the central atom?
Chemistry
High School
based on the balance reaction between iron and oxygen, how many electrons are transferred when 15 g of iron react?
Chemistry
High School
1.000 g of a transition metal carbonate, mco3, is heated to produce the metal oxide and 0.383 g of carbon dioxide. what is the identity of the metal m?
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