How many nanomoles (nmol) is a 91.1 microgram (ug) sample of gold? Give your answer to 3 sig figs AND in standard notation. Type your answer...

Q: A sample of an unknown hydrated compound weighed 16.450 grams. After heating, it had a mass of…

A: We have to calculate the percentage of water by mass in the unknown hydrated compound that weighed…

Q: How much water, in mL, needs to be added to 29.7 mL of 11.2 M HNO3 to make a 6.05 M solution with…

A: Given values,  V1 = 29.7mL N1=11.2M N2=6.05M And V2=?

Q: 18. A silver wire has a diameter of 0.500 mm. What length of this wire contains exactly 1.00 mol of…

A: given, the diameter of silver wire = 0.500mm = 0.05 cm number of mole of silver = 1mol density of Ag…

Q: suppose 1.87 g of zinc bromide is dissolved in 50. mL of a 0.30 M aqueous solution of potassium…

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Q: What is the molar mass of sodium bicarbonate, in g/mol? Your answer should have the appropriate…

A: We have to find molar mass of sodium bicarbonate. Atomic mass of sodium = 22.99g/mol Atomic mass of…

Q: . A sample of mercury(I) nitride weighs 3.33 dg.  How many nitrogen atoms are in this sample? The…

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Q: How many nanomoles (nmol) is a 30.6 microgram (ug) sample of gold? Give your answer to 3 sig figs…

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Q: What is the percent by mass KBr of a solution that contains 54.5 grams of KBr and 100.8 grams of…

A: The concentration of the solution is defined as the amount of solute present in the solution. In a…

Q: 5. Calculate molar mass of Cu3(PO4)2. Report to the correct significant figures and units.

A: Atomic mass: Copper = 63.54 gm/mole Phosphorus = 30.97 gm/mole Oxygen = 16 gm/mole One formula unit…

Q: compound contains only Mn and F. The ratio of Mn and F is 1.73 moles of F per 1 mole of Mn.  If the…

A: Given Empirical formula of Compound is MnFx Molar ratio of Mn and F is 1.73 We have to determine…

Q: coffee cup is found to have a volume of  263 mL. Using unit analysis, show what the volume of this…

A: By unit analysis we can conclude that, 1 L = 1000 ml         OR 1000 ml = 1L

Q: A compound contains iron and bromine. A sample of the compound contains 6.371 g of iron and 10.991 g…

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Q: Mass/Mole Conversions: 1. Find the mass of 0.89 mol CaCl2, calcium chloride.

A: We know that , Moles of substance = Mass of substance / molar mass of substance   By using this we…

Q: A 100.0 g sample of impure calcium carbonate was heated. It decomposed to form carbon dioxide gas…

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Q: 4. Find the mass of 3.66 mol of N2, nitrogen gas.

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Q: a 500 mg vitamin c tablet contains 0.150g of sodium ascorbate. what is  percentage by mass of sodium…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: What is the molar mass of Si3OH6 in g/mol? Answer in decimal form, without units, to 2 decimal…

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Q: A bottle of aluminum sulfate, Al2(SO4)3, contains 158.1 g of the compound. How many moles of…

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Q: Assume that the mass of impure acetanilide is 2.229 g. And the mass of recrystallized acetanilide is…

A: Mass  of recrystallized acetanilide is = 1.225 g Mass of of impure acetanilide is  = 2.229 g…

Q: 5.) Correctly match the terms listed on the left with the substances listed on the right. More than…

A: --> Mg (Magnesium) is an element because it is in native state  --> Fe mixed with sand then it…

Q: Determine the number of carbon atoms in a 381 mg tablet of acetaminophen (C3H9NO2). Given: Molar…

A: Given: Mass of C8H9NO2 = 381 mg = 0.381 g                  (Since 1 g = 1000 mg) And molar mass of…

Q: How many.grams F in 584.8 g Br2F6? Put the answer in the box in regular (non-scientific) notation.…

A: Number of moles is defined as given mass divided by molecular mass.

Q: Which hypothesis describes the behavior of molecules when a substance changes from a gas to a…

A: When a solid substance is heated then it transfers to its liquid state. If the liquid state is…

Q: pls answer the following: 1. Why should the bulb of the thermometer not touch the bottom of the…

A: (1) Bulb of thermometer should not touch the bottom of the beaker because it disturbed the actual…

Q: Calculate the total number of oxygen atoms in 65.0 g of KClO3. Express your answer in scientific…

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Q: Calculate the percent by mass of CH3COOH in vinegar (%). Number answer only, do not write units. Do…

A: To determine the percent by  mass of acetic acid in vinegar, we must first determine the molarity of…

Q: mass of alloy

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Q: E Learning Task 2: An alloy is prepared by mixing 60g copper and 70g zinc. Find the percentage by…

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Q: Analyses of several samples of a material containing only iron and oxygen gave the following…

A: Calculate the number of moles of Fe and O in each sample. This can be done by dividing mass of each…

Q: What is the percent by mass NaCl of a solution that contains 56.0 grams of BeO and 138.0 grams of…

A: Given: The mass of the solute, i.e;  BeO=56 g. The mass of  the solvent, i.e; H2O=138 g. Therefore…

Q: If a water sample has 0.07 mol of calcium ions in 15 L solution, what is the water hardness level in…

A: Given moles of calcium = 0.07 moles Volume of solution = 15 L

Q: Calculate the volume in liters of a 2.88 g/dL copper(II) sulfate solution that contains 300. g of…

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Q: How many milligrams of arsenic would be a typical amount in a 60.-kg adult? Express the mass as an…

A: Minerals are vital for building the new tissues, muscle contraction, the transmission of nerve…

Q: 1) State your interpretation of the meaning of the slope for the first graph you prepared of Volume…

A: A question based on tools in analytical chemistry that is to be accomplished.

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.