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Q: 3. Describe air using the terms: mixture, atoms, and molecules.

A: A matter is any substance that has mass and volume. Air has mass and volume, hence it is a matter.

Q: Peak A has a height of 172 mm and a width at half height of 14.7 mm. Peak B has a height of 85 mm…

A: Given :-  Height of Peak A = h = 172 mm  Width of Peak A at half height = w1/2 = 14.7 mm  Height of…

Q: Ascorbic acid (C6HsO6) is also known as Vitamin C. How many molecules of CgHsO6 does a Vitamin C…

A: In this question, we want to determine the Molecules of C6H8O6  How we can determine, you can see…

Q: You are doing a lab on Charles Law and determining if the law is valid or not. However, you are…

A: Charles' law can be summarized like this: V1T1=V2T2

Q: Explain your rationale for using the summative assessment (below) from the lesson plan on mixing…

A: The objective of the question is to explain the rationale for using a specific summative assessment…

Q: You were in the middle of a tropical rainforest and it is very humid in the environment. Do you have…

A: 22) Solution - According to the question - Above statement is - True    23) Solution - According to…

Q: Table 8.6 (report) Sample temperatre (C) Sample volume (mL) Sample temp in Kelvin (K) K' Value 1…

A: Hi there! The first part of this question is too complex to solve on this platform so we are…

Q: Choose the one correct or one incorrect statement regarding filtration:      gravity filtration…

A: the correct option is:

Q: The following image depicts a centrifuge rotor with six sample holders. The blue sample holders…

A: To use a centrifuge rotor, we need to balance it. To balance it - All sample tubes should be evenly…

Q: Calculate the pH of the following solutions prepared by: Part A Dissolving 4.7 g of lithium…

A: Dear student since you have posted multiple parts question, As per our company QnA guidelines We are…

Q: Mary Calculate the volume in milliliters of a 0.995 mol/L calcium bromide solution that contains…

A: Given, Molarity of calcium bromide (CaBr2) solution = 0.995 mol/L Mass of calcium bromide (CaBr2) =…

Q: Solve the equation

A:

Q: mol stock solution of A chemist makes 0.670 L of mercury(1) chloride (Hg, Cl,) working solution by…

A: FOR DILUTION M1V1= M2V2 M1 = Initial molarity of solution, V1 = Initial volume of solution, M2=…

Q: A particular beer is 6.50 % ethanol by volume. If a single bottle of beer contains a total of 750.0…

A:

Q: Directions: Convert the following temperature scales. 1. 55 °C to K 2. 288 K to °C 3. 28 °C to OF 4.…

A: The different units of temperature are related to each other as; °F=95°C + 32…

Q: hen asked to record the buret reading shown below, a student wrote down a reading of 15.300 mL. mL…

A: We can see that the meniscus is at 15.300 mL So the value is be 15.300 mL. Hence, their reading is…

Q: What does STP stand for in chemistry? What are the values for each letter? Explain why STP is…

A: Characteristics of gas:  Compressibility Expansibility Diffusion Pressure   Variables of gas:…

Q: How long a trip, in kilometers, can be made on one full tank of gasoline? Express your answer to two…

A: Two numerical problems based on unit conversion, which are to be accomplished.

Q: Ascorbic acid (C,HgO6) is also known as Vitamin C. How many molecules of CsH;O6 does a Vitamin C…

A: GivenAscorbic acid  C6H8O6Mass of ascorbic acid = 1000.0 mg1 mg = 10-3 g=0.001 gMass of ascorbic…

Q: Why should the syringe be removed from the sensor when setting the initial volume for each trial?

A: Option C

Q: What is the molar mass of unknown Z, .0578g and 1.12 x10 -3moles.

A: Number of moles = Mass/Molar mass

Q: What is the mass percent of water in Ca(NO3)₂ 4 H₂O? Provide an answer to two decimal places.

A: Mass percent: it can be define as the mass of the component in one mole of the compound divided by…

Q: if you use tap water to dissolve a solid you can contaminate data true or false?

A: YES if we use tap water to dissolve a solid then we  can contaminate the data.

Q: Describe the differences between gravity and vacuum filtration

A: Please have a look on the solution:

Q: %23 H H CHs H-C-ć-H CH3 H-C-c-H HC=O НС—о н ОН Но H ČH,OH ČH,OH 2 CI CI CI H C = C C = C 6. нн H CI…

A: Answer: When two molecules have same molecular formula but different structural formula or spatial…

Q: Use the figure below (Figure F01-7-8) to answer this question. Temperature Anomaly (°C) O O 1.06 O…

A:

Q: What is the solubility of KCI at 80C 150 140 KI 130 120 110 100 NANO3 90 80 70 60 NHẠCI KCI NaCI 50…

A: The solubility chart given is as shown below. To Find : Solubility of KCl at 80 oC.

Q: Part C: Determination of the alcohol content of unknown liquor St tiend Volume (mL) Sample ТИШТИНА…

A: The objective of this question is to determine the alcohol content of an unknown liquor sample using…

Q: General Formula of Hydrate= Heating # 0 1 23 2 3 45 4 5 Empty Crucible (g) 15.5525 15.5391 15.5377…

A: General formula of hydrate is given to be MgSO4.xH2O . Through all the calculations , we have to…

Q: QUESTION 1: How much KCl03reactant will be needed to produce 105.8g of tetraphosphorus decaoxide…

A:

Q: Below are 3 real life situations. Pick two (2) them and explain ALL the science involved in the…

A: Water boils at 1000C. For boiling water, energy is supplied in the form of heat. This energy…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".