What is true about AHmix for NaNØ3 compared with LiNØ3? Х ДНтіх NaNO3 is positive and larger in magnitude AHmix NaNO3 is positive and smaller in magnitude AHmix NaNO3 is negative and larger in magnitude 4) AHmix NaNO3 is negative and smaller in magnitude

Q: where did the 1.479 come from?

A: Solution : Your doubt arises in the given step: 4.93 = 4.46 + log [( 40 + 3.5V mL) / (60 - 3.5V mL)]

Q: Determine the pH of each of the following solutions.

A:

Q: Each sketch below shows three objects with an electric charge. In each case, decide whether there is…

A: Direction of green ring object is to be determined in each sketch.

Q: The mass of magnesium used in this experiment is critical to determining the moles of hydrogen gas…

A: The reaction considered is the formation of H2 gas by the reaction of Mg with HCl. The balanced…

Q: solid disappears.

A: According to the given data the solid is soluble in liquid and we have to separate the two.There are…

Q: A researcher would like to determine whether there is any relationship between students’ grades and…

A: To determine whether students who sit in the front of the classroom have significantly different…

Q: If X and Y are quantities that are related to each other by inverse proportion, what will the value…

A: If two quantities x and y are related to each other by inverse proportion Then an increase in x…

Q: Knowing the Ka value of HF, calculate the Kb value of fluoride anion. (Give your answer as a pure…

A: Given Ka= 6.8 x 104 We have to calculate Kb value.

Q: Write the Ksp expression for BaO(s). To type a power, use a ^ symbol. For example: x2 can be typed…

A:

Q: An electric current of 132.0 mA transports 80.0 C of charge. Calculate the time this took. Be sure…

A: The charge transport in a unit time is known as electric current. The current is calculated by using…

Q: 1. During the set-up of a distillation or a boiling point apparatus, the position of the bulb of the…

A: Solution - The process of distillation totally depends on temperature of liquids . That’s why…

Q: a) upon heating, a blue powder turned white and lost mass b) A white soil forms three different…

A: Given: For each of the changes have to decide whether two or more elements formed a compound or if a…

Q: The concentration of many colorful solutions can be determined by the amount of light absorbed by…

A: As the absorbance and concentration are in linear equation  then the equation will be y= mx+ C…

Q: Classify the substance shown in the sketch below. You can click the other tabs in the sketch to get…

A: In chemistry, compounds are classified as solid, liquid, or gas based on their physical and chemical…

Q: ach sketch below shows three objects with an electric charge. In each case, decide whether there is…

A: Electric charge can be positive or negative. In chemistry, electrons carry the negative charge while…

Q: Write balanced complete ionic equation for CaS(aq) +CdCl2 (aq) → CdS(s) + CaCl (aq). Express your…

A: In net Ionic reaction no of ions should be equal in both side reactant and product

Q: how many sodium atoms would fit along a straight line exactly one (1) inch long

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Q: 5. Given your experience in mass determinations and with volumetric glassware, which factor used -…

A:

Q: 5. What are the properties of water that make it important for life? The substances that we are…

A: Water has many properties that makes it important part of life like universal solvent, high heat…

Q: CH3 -C-C-C-C-C- Br Br

A:

Q: I am told that when determining the number of significant figures, if the decimal place is absent,…

A: Rules for Determination of Significant Figures:[i] All non-zero digits are significant.For example:…

Q: what are refractory materials?

A: Materials that are inorganic non-metallic materials are called refractories.  They can withstand…

Q: +2 +1 +1

A: Answer:Opposite charges attracts each-other and same charges repel each-other and magnitude of that…

Q: N2H4(1) --> NH3(g)+N2(g) Express your answers as inetegers seperated by commas

A:

Q: I am not sure how to answer the questions in 13.51

A:

Q: The U.S. Government has about 1.23 * 107 pounds of gold in Fort Knox. How much is it worth at…

A: 1.23 X 107 pounds of gold = 12 X 1.23 X 107 Toz = 14.76 X 107 Toz

Q: Gold has 79 electrons per atom and an atomic mass of 197 u. Part A What is the total charge of all…

A: Given  atomic mass of gold = 197 u = 197 g/mol = 0.197 kg/mol  1 atom of gold = 79 electrons  mass…

Q: A student plots the graph of absorbance vs. concentration for their sample. They end up with a line…

A: Question is based on the concept of absorbance and concentration. we have been given the line with…

Q: How many neon atoms are contained in (6.89x10^2) grams of neon? Use at least two decimal places for…

A: Given -> Weight of neon = 6.89 × 102 gram

Q: State the number of protons in Ag^+. Express your answer as an integer.   State the number of…

A: Electronic configuration of Ag (47) = 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s1 Number of protons…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.