Calculate each of the following for the hydrated 'compound':           Mg5Al4(P3Se7)3⋅⋅6H2O NA = 6.022 x 1023 a. What is the mass percent of phosphorus in the hydrated 'compound' reported to 4 significant figures?  % b. How many magnesium ions are in 753.0 micrograms of the hydrated 'compound'?  magnesium ions

Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 58.6 g of iron(II)…

A: Given, Mass of iron (II) bromide (FeBr2) = 58.6 g Volume of the flask = volume of the solution = 250…

Q: An acid, HEl, is formed from a hypothetical element, El, and a subsequent aqueous solution is…

A: Hypothetical element El Hydroacid, HEl Reaction; H2O + HEl  = H3O+ + El-   Molar mass of HEl =…

Q: Suppose you measure out 0.0132 moles of ammonium sulfate on the balance. If the weigh boat…

A:

Q: For the following questions (Q1-Q5), consider the compound tartrazine (Yellow 5 food dye) that has a…

A: Given, 2.487 x 10-4 moles of tartrazine

Q: For the following questions (Q8-Q12), consider the compound tartrazine (Yellow 5 food dye) that has…

A: Mass of tartrazine = 0.1283 g

Q: B. Percentage of Water in an Unknown Hydrate CUC2·X H20 UNKNOWN # mass of beaker and watchglass +…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: How would the following errors affect the empirical formula for the compound? That is, will these…

A: The empirical formula is the simplest ratio of different elements present in a compound. The ratio…

Q: The following mixtures are completely mixed to form mixture D: Mixture Mass (kg) % NaCI % KCI % H2O…

A: The solution is given in below image file: From the given information, It is know that mass of each…

Q: O Chemical Reactions Calculating molarity using solute moles 1/5 A chemist prepares a solution of…

A: Given: μmolZn(NO3​)2​=5.0μmol;V=50.mLC=???μmol/LStep 1: Convert the volume to…

Q: The following chemical equation has NOT been balanced.   H3PO4 + Ca(OH)2 --> Ca3(PO4)2 + H2O…

A: Given, mass of H2O = 17.94 g  Molar mass of H2O = 18.01 g/mol  Molar mass of Ca(OH)2 = 74.09 g/mol

Q: A sunscreen preparation contains 2.50% by mass benzyl salicylate (2.50g benzyl salicylate/100g…

A: Given : weight of benzyl salicylate = 2.50 g in 100 g sunscreen  And one tube contains 4 ounces of…

Q: A chemist adds 205.0 mL of a 2.74 mol/L iron (II) bromide (FeBr₂) solution to a reaction flask.…

A:

Q: A laboratory procedure calls for making 510.0 mL of a 1.2 M KNO3 solution. Part A How much KNO3 in…

A: Given, Molarity of solution = 1.2 M volume of solution = 510.0 mL = 0.51 L we are asked to calculate…

Q: How many grams of solute are present in 165 mL of 0.410 M KBr? mass of solute: 0.0

A: Given, volume of solution = 165 mL = 165 mL x ( 1 L / 1000 mL) = 0.165 L concentration of KBr…

Q: A chemist prepares a solution of potassium chloride (KCI) by measuring out 75.7 mg of KCI into a…

A: Given Mass of kcl = 75.7 mg = 0.0757 g Volume of solution = 100ml = 0.1L

Q: III 0/5 A chemist prepares a solution of calcium bromide (CaBr2) by measuring out 113. μmol of…

A: Approach to solving the question: Detailed explanation: Examples: Key references:

Q: Cephalexin is a semisynthetic cephalosporin antibacterial drug intended for oral administration.…

A:

Q: che percentage of C

A: Malachite is the carbonate hydroxide of copper which is green in color, which formed by the ore…

Q: Calculate the number of grams in these quantities. 5.17 x 1021 molecules glucose, C6H12O6 64.6 mL…

A: 1) Since moles = number of molecule / Avogadro's number where Avogadro's number = 6.022 X 1023

Q: O Chemical Reactions Using molarity to find solute mass and solution volume 0/3 Bi A chemist adds…

A: Step 1: Calculation of moles of sodium thiosulfateGiven,molarity of sodium thiosulfate solution =…

Q: A fungus that grows on peanuts produces a deadly toxin. When ingested in large amounts, this toxin…

A: ✓There are two types of fungus found in nature (a) Poisonous  (b) Beneficial

Q: O Chemical Reactions Using molarity to find solute moles and solution volume 3/5 A chemist adds…

A: Step 1: The millimole of NaCl in 365 ml of 2.07 M solution is calculated as

Q: Assume household vinegar contains 5% acetic acid by weight and that the density of vinegar is the…

A: Given :  Volume of household vinegar = 404 ml  Density of vinegar = 1 gm/ml  Weight % of acetic acid…

Q: A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration…

A: It is given that,       Initial concentration of salt dissolved in        Lake…

Q: A chemist prepares a solution of aluminum sulfite flask to the mark with water. Calculate the…

A: The amount of aluminum sulfite given is .The volume of solution is .To find the concentration in…

Q: What mass of K2CO3 is needed to prepare 94.0 mL of a solution having a potassium ion concentration…

A: We have to calculate the mass of potassium carbonate needed.

Q: A chemist wants to make 5.0 LL of a 0.330 MCaCl2MCaCl2 solution. What mass of CaCl2CaCl2 (in gg)…

A: Given  Molarity of CaCl2 =  0.330 M                               = 0.330 mole/Liter Volume of…

Q: CoCl2 .x -H2O is the purple sample. Calulacte the value for the x integer.   Mass of sample: 1.000…

A:

Q: The formula to use for calculations of dilutions is 1. VC =V½C2 2. V¡C2 = V½C1 %3D %3D C1 %3D O 1 O…

A: Dilution: It is the process in which there will be the addition of water to the more concentrated…

Q: Calculate the following to the proper significant figures:  The molecular mass of iron(II)…

A: Molar mass can be found out by simple adding the atomic masses of each species. moles can be…

Q: For the following questions (Q1-Q5), consider the compound tartrazine (Yellow 5 food dye) that has a…

A: Since you have posted multiple questions, we are entitled to answer the first question only.

Q: A soft drink contains 54 gg of sugar in 339 gg of H2OH2O.   Part A What is the concentration of…

A:

Q: A physician prescribed dimenhydrinate (Dramamine) 50 mg q4-6 h. p.o. as an antihistamine. The drug…

A: Given: Amount of medication required = 50 mg And the drug present in each tablet = 0.2 g.

Q: An acid, HEl, is formed from a hypothetical element, El, and a subsequent aqueous solution is…

A:

Q: Q: A chemist attempts to prepare some crystals of borax (sodium tetraborate, Na,B4O7.10H2O) by…

A:

Q: Express 250 mcg/mL Warfarin sodium as a percentage (wN) O 0.0001 0.025 0.10 0.25

A:

Q: Sodium hydrogen carbonate, NaHCO3, is commonly known as baking soda. What is the % by mass of 20…

A: Given :-  mass of NaHCO3 = 20 g  volume of water = 600 mL  To calculate :-  % by mass of NaHCO3 in…

Q: What is the density of a mixture that is 2.3 moles A and 2.7 moles B? Explain how you arrived at…

A: Given, moles of A = 2.3 mol moles of B = 2.7 MOL density of liquid A = 1.05gmL density of liquid B =…

Q: 12. A sunscreen preparation contains 2.50% by mass benzyl salicylate (2.50g benzyl salicylate/100g…

A: Given,2.50% by mass of benzyl salicylate.1 tube = 4.00 ounces of sunscreen.

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.