2. How many moles would there be in 500 atoms of Silver? - 3. What is the mass of exactly 230 Sodium atoms in amu (atomic mass unit)? 4. How many atoms of Iodine are contain ed in a sample of Iodine that has a mass of 1.247 x 105 amu?

Q: Please help with questions 1-3. Very confused

A: Here a weak base is being reacted with a strong acid.So together they will form a basic buffer.

Q: AHvap (NO2) = +32.0 kJ/mol at its normal boiling point, 21°C. 1. Consider the enthalpy of condensing…

A: ∆Hvap = +32 kJ / mol Temperature (T) = 21℃

Q: 3. How many grams of SnO; can be reduced by 20 moles of H;? _Sno, +_H, →_Sn+_H,O unbalanced 4. If…

A: SnO2 + 2 H2 → Sn + 2 H2O From this Balanced chemical equation , we can get the grams of SnO2 reduced…

Q: A student performs the experiment and acquires a mass of 9.25g for a 10mL addition of 12

A: Part 2: Mass of water = 9.25 g Volume of water = 10 mL To determine: Percent error for this trial

Q: please solve questions 2

A: Q2.Given that, 60Co undergoes radioactive decay.The half-life of it is .We have to calculate the…

Q: 3. SO, 4. PH3 2- 5. CO2 6. [Fe(H2O)6]*

A:

Q: 3. Zn + 2HCI - ZnČI, + H, How many moles of hydrogen are produced from the reaction of three moles…

A:

Q: 3. Green fluorescent protein (GFP), native to jellyfish, is a biological imaging tool that emits…

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

Q: 2. Confirmatory tests for the various ions are often colorful. Identify the confirmatory…

A: We have find out the confirmatory test for various ions and reagents for separations.

Q: (a) Benzene to 1-t-butyl-3-ethylbenzene (b) Benzene to m-bromobenzoic acid (c) Benzene to…

A: Since you have posted  question with sub-parts , we are entitled to answer the first three sub-parts…

Q: 2) Did your sample contain Ag+ ions? 3) What test was most critical in determining if your sample…

A: A common method used to identify the ions in a mixture is quantitative analysis. In this method the…

Q: Part 1: Balance the given Reduction-Oxidation (REDOX) equations using the Oxidation Number Method.…

A:

Q: 3. What mass of water would need to evaporate from your skin in order to dissipate 1.7X10 J of heat…

A: Please find your solution below : Calorimetry is a branch of science that measures the change in…

Q: Pre-Lab Study Questions 7 1. Why does a sodium street lamp give off a yellow color, whereas a neon…

A: The color of the light depends on the element you are contacting. In contact with energy, the…

Q: 1) A lab technician makes three successive 5.0 mL-to-50.0 mL dilutions (like was described in your…

A: To solve the question-1, we have to understand the successive dilution that are employed here----…

Q: 1. Cholesterol decreases membrane fluidity at high temperatures. Explain how the addition of…

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: pen belongs to industrial method 3) The "ether synthesis" whereas is the William's process. H,SO H…

A:

Q: TRUE or FALSE. Write TRUE if the statement is correct and FALSE if the statement is wrong. 1.…

A: Given : We have to tell which statement is false or which is true.

Q: 7. How many moles are in 50 grams of Platinum?

A: Ans:7  The number of moles of compound present in a given amount can be calculated by dividing the…

Q: Answer all questions from

A: To calculate the molar mass of germanium tetrafluoride (GeF4), we'll sum the atomic masses of its…

Q: Help solve 1,2,3,4,5.

A: 1.To find the standard Gibbs free energy change (ΔGrxn∘​) for the ionization of acetic acid…

Q: Consider a balloon that will expand without any restriction until it pops. If the balloon 12) can…

A: Note: As per the guidelines solution of 1st challenge question has been made. For the expert…

Q: Briefly summarize the experiment Rutherford used to develop his model. Use diagrams. Draw a picture…

A: Rutherford directed a beam of alpha particles on a thin foil of gold, and the foil was surrounded by…

Q: Pre-Lab Questions 1. Review the Background section. Arrange Equations A-C in such a way that they…

A: Some reaction absorb heat as the reaction proceeds forward from reactant to product. While in other…

Q: 2) A 100.0 mL water sample required 15.00 mL of EDTA solution during trial 1. What would be an…

A: In complexometric titration, metal ion solution is treated with EDTA to form EDTA complex.  Ca2+ +…

Q: 1. Vitamin C has the formula C,H,Og. Calculate the number of vitamin C molecules present in a 0.250…

A: 2.) We are having 0.1 g of caffeine (C8H10N4O2) Molar mass of caffeine  = 194.2 g/mol

Q: 2) Did your sample contain Ag+ ions? 3) What test was most critical in determining if your sample…

A: A common method used to identify the ions in a mixture is quantitative analysis. Here the ions in a…

Q: 2) An object made of aluminum has a mass of 8.37 g. When it was placed in a 100 mL graduated…

A:

Q: 5. If 5.00 moles of MgO were reacted with excess moles of P.O10, what mass of Mg:(PO.)2 would be…

A: For the solution of both the question we must have to balanced the given chemical equation  the…

Q: phases of matter (solid, liquid, and gas) is NOT correct? a. All three phases consist of particles…

A: 1) The solid phase consists of vibrational motion of molecules. Liquid and gasious phase consists of…

Q: 1. Vitamin C has the formula C,H¸Og. Calculate the number of vitamin C molecules present in a 0.250…

A: The molecular formula of the vitamin C is = C6H8O6 The mass of vitamin C is = 0.250 g The number of…

Q: Have Learned In your own words, differentiate polar and nonpolar covalent bond. 1. What is…

A: Polarity is defined as the movement of electrons between two atoms. When there is a difference in…

Q: 3. Another student began a she forgot to add the 3 dro a) What happened?

A: Concept: Color of Phenolphthalein in Below pH 8.5 = Colorless  above pH 9.0 = pink to deep red color…

Q: 1) Consider the reaction below. If the concentration of B doubles, what happens to the concentration…

A: Order of a reaction : It is the sum of powers of the concentration of the reactants in the rate law…

Q: 2. The calculated amount of product that should be produced based on the amounts of reactants is…

A: 2. C) Theoretical yield.  The theoretical yield is defined as the calculated maximum amount of the…

Q: 3) Setting up using the conversion factors of molar mass and/or Avogadro's number: a) A modern penny…

A: You have asked to give answer of question 3 to 5. The solutions are given below -

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.