Calculate the pH at 25 °C of a 0.49 M solution of anilinium chloride (C6H5NH3C1). Note that aniline (C6H₂NH₂) is a weak base with a pK, of 4.87.

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Q: Perform the following computation using your calculator: (report your answer to at least 3 decimal…

A: Solve the given expression.

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Q: What is the answer with the correct number of decimal places for this problem? 4.392g +102.40g+2.51g…

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Q: Calculate the pH and percent ionization of a 0.890 M HNO₂ solution. Note: Reference the K, of acids…

A: Given,Molarity of HNO2 = 0.890 MFrom the reference,      Ka = 4.5 x 10-4

Q: Add the numbers and round the answer to the correct number of significant figures. 109.609 + 47.98

A: Significant figures are defined as the number of digits in a measurement that contribute to the…

Q: Using the arithmetic problem below, determine the correct number of significant figures.…

A: Rules for determining the number of significant figures in an answer : The result of an addition or…

Q: Determine the answer to... 14.8x104 1.0x107³ Enter your answer in standard notation with proper…

A: The numbers that can add meaning to the total value of a quantity or a number are called significant…

Q: I have to have the correct number of significant figures

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Q: Convert 11.66 to K. PrOVide an answer with decimalS.

A: The question is based on the concept of unit conversions. we have to convert the given temperature…

Q: Round to the correct amount of Significant figures (218.6-218.59)+0.03

A: To determine the number of  significant figures in a number we have to follow the following rules…

Q: How do I determine which value is the most precise and which value is the most accurate when given 4…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: Select the answer that expresses the result of this calculation rounded to the correct number of…

A: Before calculations certain rules should be understood for significant digits. All of the non-zero…

Q: If the density of water is 1g/mL, would an object with a density of 40g/mL sink or float in the…

A: Given :-  density of water is 1g/mL  density of object is 40 g/mL  To find :- whether the object…

Q: Given that there are 2.2 lbs per I kg and 16 ounces per I pound, how many oz are there in 13 g?…

A: Given: Mass in g = 13 g.

Q: Match the significant figure rule with the appropriate mathematical operation. Group of answer…

A: The rules for counting significant figures when we perform addition or subtraction and…

Q: A liquid has a volume of 10.95 mL and a mass of 75g. Calculate the density of the liquid. If 10.00…

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Q: A Chemistry 20 student uses a thermometer and a hot plate and measures the boiling point of ethyl…

A: In the given question we have to calculate the percent error of boiling point of ethyl alcohol.…

Q: I need it the answer in decimal form and with only 3 significant figures.

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Q: would this answer be following the correct number of significant figures

A: For a given question, the answer should be reported in required number of significant figures if…

Q: Perform the following operations and give the answers with the correct number of significant…

A: Any final computation of a result must indicate  the extent of reliability to be assigned to the…

Q: Solve following using Significant figure rules - (2502.20 x 21.00)/ 3.0

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Q: How is the number of digits determined for an answer obtained by addition or subtraction? (See…

A: Check the rules for significant figure with addition or subtraction and use it to determine which…

Q: D Question 4 Consider an object that is in the shape of a cube with a mass of 45.8 grams. If the…

A: Answer:Density of an object is the ratio of its mass and volume as shown below:Here:

Q: Round off each of the measurements to two significant figures. 1.734 kg

A: As we have to round off for 2 significant figures, we will see 3rd significant figure, if that is…

Q: To what decimal place should each answer be rounded? How many significant figures d A. 9 cm + 2.8 cm…

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Q: -23 in oxygen atom has a mass of 2.66 x 10 g and a glass of water has a mass of 0.050 kg. se this…

A: Here we are required to find the mass of 1 mol of oxygen atom.

Q: Consider the following operations on the number 3.71x10-2 Without using a calculator, decide which…

A: The significant figure refers to particular digits in a number. According to the measurement rule,…

Q: A person is 6 feet 9 inches tall; how many cm tall are they? 2.54 cm = 1 in. Report your answer with…

A: Given :  Height = 6 feet 9 inch  2.54 cm = 1 inch

Q: Evaluate 52.00 cm + 15.550 cm  report answer to the correct number of decimal places and include…

A: Significant figures are the number of digits in a measurement that grant the degree of accuracy of…

Q: Record the measurement shown below to the proper place value. Do not include units in your answer.…

A: The 1 cm length is divided into 10 parts, hence the given instrument can measure the length with one…

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Q: Perform the following calculation and round answer to the correct number of significant figures?…

A: Calculations Involving Significant Figures :- Rule (1)When addition or subtraction is to be carried…