Determine the number of atoms in 30.0 g of P, with the correct amount of sig figs.

Q: If the average molar mass of a sample of soybean oil is 1500 g/mol, how many grams of NaOH are…

A: Saponification is the process that involves the conversion of fat, oil, or lipid, into soap and…

Q: Calculate the coulomb energy for the following three nuclei using the semi-empirical mass formula.…

A: Introduction The semi-empirical mass formula is used to calculate an atomic nucleus' mass and other…

Q: why lung and soft tissue appear different on a radiograph when they have both an effective atomic…

A: The radio graphic image will appear according to the effective atomic number.

Q: Determine the mass in grams of 2.10 × 10²¹ atoms of copper. (The mass of one mole of copper is 63.55…

A: Molar mass is defined as the ratio of the mass of the substance (m) to the moles of substance (n)…

Q: for 0.9% NaCl solution and 10% NaCl solution, which one has higher concentration of WATER?

A: When sodium chloride is mixed with water, it gives you a saline solution. It has a variety of…

Q: Ethanol is dissolved in water to make 0.750L of solution. Given that the solution is 2.6M, what is…

A: Calculations are very important for research and laboratory purposes. They are used to determine the…

Q: Calculate the pk, of an acid with Ka = 7.77 x 104.

A: pKa of an acid is the pH at which 50% of the acid is deprotonated or dissociated. +1/-1 pH unit…

Q: If you have a sugar with a molecular weight of 315 g/mol, how many grams would you need to add to…

A: Given the molecular weight of sugar is 315g/mol. The volume of the solution is 487 mL and its…

Q: What is the mass in grams of 6.022 * 1023 O atoms of mass 16.00 amu?

A: The mole concept is a convenient method of expressing the amount of a substance. Any measurement can…

Q: For an acid HA, the concentrations of HA and A are 0.075 and 0.025, respectively, at pH 6.0. What is…

A: The value of pKa is used to indicate the acid strength.  pKa is a negative log of Ka value or the…

Q: What is the mass in grams of 30.50 moles of KBr

A: The molar mass is defined as " It is the addition of all the atomic mass of atoms present in the…

Q: Given the following graph, what are the pKa's of the polyprotic species? Analytical Concentrations…

A: In contrast to monoprotic acids, which can only provide one proton per molecule, polyprotic acids…

Q: Using your calculated concentration from the graph (in mol Cu2+/L) and the concentration of the…

A:

Q: How many grams of digoxXin (LANOXIN) would be required to make 25,000 tablets each containing 250…

A: This is a word problem where first we have to find out how many micrograms do the 25,000 tablets…

Q: Draw condensed structural formulas for the two carboxylic acids with the molecular formula C4H8O2

A: A condensed structural formula is also known as semi structural formula. In a condensed structural…

Q: Determine the mass of baking soda (84 g/mol) needed to completely react with 531mL of vinegar.…

A: Acid and base react to produce salt and water. In some reactions, gas may also be released (hydrogen…

Q: How many moles of tungsten(VI) oxide and hydrogen were required to produce the 5.00 g of tungsten?

A: Stoichiometry is a section of chemistry that involves using relationships between reactants and/or…

Q: Which structure is labelled "L"?

A: Heart is the major pumping organ of the body it has so many parts i,e. Auricles(Atria) ,ventricles…

Q: If I have a 20ml stock solution of BSA with a BSA concentration of 0.2%. How can I make two other…

A: The concentration of the stock solution of BSA is 0.2%. Percent solution is the mass of solute…

Q: Draw the structure of the wax composed of stearic acid and a straight-chained alcohol with 30 carbon…

A: Waxes are simple lipids composed of fatty acids (saturated and unsaturated) which are esterified to…

Q: If a 0.2g of oil consumed 1ml of sodium thiosulphate, calculate its Iodine value and classify the…

A: Lipids are classified into fats, oil, and wax. Fats are also called triglycerides, where three fatty…

Q: Define the following terms:(a) Chiral (b) Achiral(c) Chiral carbon (d) Enantiomer

A: Stereoisomerism is a form of isomerism in which molecules have the same molecular formula and…

Q: How many milliliters of 0.1M aqueous Sodium Hydroxide solution can be prepared from 10 gm ?of Sodium…

A: The molarity (M) is the amount of a substance dissolved in a certain volume of a solution. It is…

Q: You have a 20% stock of NaCl, a 30% stack of KHPO, 2.5 M NH CI and 10 mg/ml stock of ampicill a. How…

A: The total number of shares that are literally listed (bought and sold) throughout the business day…

Q: give the reference range for 15 constituents included in a chemisty profile?

A: The reference range is also known as the normal range. The reference range of a substance is…

Q: What is the equivalent of 7 ppb in µg sol/L?

A: ppb means parts per billion.

Q: What is the pH of a solution of 100 ml of 0.01 M H3PO4 and 100 ml of 0.01 M Na3PO4?

A: A buffer is an aqueous solution containing a weak acid and its conjugate base or a weak base and its…

Q: Determine the molar mass of Mg(OH)₂. Provide an answer to two decimal places.

A: Molar mass is calculated with the help of atomic masses.

Q: A solution with a density of 0.876 g>mL contains 5.0 g of toluene 1C7H82 and 225 g of benzene.…

A: Molarity is defined as the moles of a solute per liters of a solution. It is also known as the molar…

Q: How many grams of Cl2 are needed to react with 50.0 g of CH4?

A: As we know to react with the CH4, 2moles of Cl2 are required. So following is the balanced chemical…

Q: given a stock solution of 10% dextrose, how would you make 5 mL of a 0.9% dextrose solution? find mL…

A: Given Values: The concentration of the stock solution of dextrose = 10% Concentration of the final…

Q: BSA (mg/ml) Absorbancy 595nm 0.225 1 0.310 2 0.420 3 0.510 4 0.610 0.720 6 0.810 7 0.915 8 0.950…

A: The Bradford Assay is is a sensitive assay to detect and quantify protein in solution.

Q: Balance the following (fictional) chemical equations by supplying the correct coefficient. Do not…

A: A section of chemistry that deals with the relationship between the reactant and products involved…

Q: Determine the number of moles in 1.95 x 1023 formula units of MgCl2.

A: Given: Formula units of MgCl2=1.95×10233 No. of moles of MgCl2=?

Q: The density of trifluoroacetic acid vapor was determined at 118.1 °C and 468.5 torr, and found to be…

A: In a chemical reaction, equilibrium is considered the state, where the rate of the forward reaction…

Q: Calculate the plane density of (110) plane at BCC sbructure Crystal : 2

A: For this (110) plane there is one atom at each of the four cube corners through which it passes,…

Q: Balance the following equation, and tell how many moles of nickel will reactwith 9.81 mol of…

A: The balanced chemical equation is a chemical equation in which both sides of equation contains equal…

Q: If 150ml of polyethylene glycol 400 weighs 74.1g, what is the specific gravity?

A: The division of density of the substance and standard density is called specific gravity. It is also…

Q: What is the pH of an aqueous solution with {H3O+} = 6x10-12

A: pH is logarithm of the reciprocal of the H+  or H3O+ ion concentration in a solution that is…

Q: The essential oil found in cloves, eugenol, can be isolated by steam distillation because it is…

A: Clove oil has been used to help and resolve problems with stomach upset, pain and respiratory…

Q: need to make upv3L of a 0.9 solution of CaCl2, how many grams will I need?

A: Given  Volume                    = 3L          Molarity of solution = 0.9 M  Mass of CaCl2…

Q: Use the following balanced equation for problems 1–5. Molar masses are given below. 2 As + 3 H2 2…

A: