A 1.99 mol sample of Kr gas is confined in a 47.0 liter container at 14.7 °C. If the temperature of the gas sample is raised to 36.3 °C holding the volume constant, the average molecular speed will O not enough information to answer the question O decrease O remain the same O increase

Q: Which of the following is not a characteristic property of a sample? O magnetism O melting point O…

A: A characteristic property is used for the identification of a sample based on its physical or…

Q: What is the mass of a magnesium block that measures 5.00 cm × 2.00 cm × 2.00 cm? The density of…

A: Given that,Dimensions of a magnesium block = 5.00 cm x 2.00 cm x 2.00 cm.The density of magnesium…

Q: Aluminum (Al) reacts with chlorine (Cl,) gas to form aluminum chloride. Given the position of…

A: Al reacts with Chlorine to form a compound having formula=AlCl3 Three Cl atoms share one electron…

Q: the coins have a mass of 2500 g and a volume of 221.4 ml  are the coins gold  Please explain…

A: Concept introduction: Density of the substance is equal to the ratio of mass to volume. Formula:…

Q: Use the References to access important values if needed for this question. The liquid diethyl ether…

A: In the given question, we have to find the volume of diethyl ether from the given data.

Q: 12) What is the major product or products for each of the following reactions shown below P();…

A: Hey, since you are posted a question with multiple sub-parts, we will answer first three sub-parts.…

Q: Circle any of the following that are most likely a pure substances? A) T-shirt C) air E) tap water…

A: Pure substance: A pure substance (element or compound) always has a definite composition by mass.…

Q: A 130.3 g piece of copper (specific heat 0.38 Jig. C) is heated and then placed into 400.0 g of…

A: We know that, according to the law of conservation of heat energy, energy gained or loss by the…

Q: Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A…

A: density of heptane = 0.684 g/mLdensity of water = 1.00 g/mLmass of heptane = 38.0 gmass of water =…

Q: why do nurses need chemistry

A: Chemistry is a science which deals with the composition of various substances and how they interact…

Q: Mark the statements which are correct. (Select all that apply.) 103 mg = 1010 ng 106 mg = 1012 ng…

A: 1 liter = 1000ml 1gm = 10^9 ng 1L =1dm^3

Q: 2. A small car has a fuel efficiency of 34.3 miles per gallon. What is this fuel efficiency in…

A:

Q: Based on the information given, identify the most significant error in the preparation of Graph 2.…

A: Analysis of Graph 2:Title Font Size (Option A):The title font size seems appropriate for the graph,…

Q: percent

A:

Q: Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A…

A: Since heptane and water do not mix, we can assume that they form two separate layers in the…

Q: how did you get 37.96%? i put the calculations on my calculator 30.43 / 14.01 / 80.04 * 100 and it…

A:

Q: If 46 students take chemistry exam and 85% of them pass them exam how many students do not pass the…

A: To solve this problem first we have to calculate the percentage of students who do not pass the…

Q: What is the mass of a solution if 25.0 ml of NaOH was added to a 35.0 ml of water? Assume a density…

A: Given that -  Volume of NaOH = 25.0 mL  Volume of water = 35.0 mL  And, density= 1.00 g/mL    Now,…

Q: Select the best statement: Physical changes may be reversed by changing the temperature Physical…

A: Physical change: Change in the physical properties of the substance is called as physical change.It…

Q: online practice top 3

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

Q: Can I get research question examples In chemistry lab

A: In chemistry lab ,we will find various research related questions.Let's write about it in next step.

Q: A bucket of water has a volume of 0.473 kL How many dL is this?

A: We have to convert the 0.473 kL to dL by using the unit factor conversions.

Q: A patient is to receive: 600.0 mL IV fluid over 8.00 hours . The drop factor for the tubing is 12.0…

A: Given, 1 drop = 1 gtt The drop factor for tubing = 12.0 gtt/mL = 12.0 drops/mL

Q: Priority of Operations: Do the following calculation in the order written without using your…

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

Q: How can you implement green chemistry principles in lab in the future?

A: To follow the 12 principal of green chemistry in the laboratory. 1. Waste prevention 2. Atom economy…

Q: A patient is required to take an IV drug for cancer treatment. The required dosage is 5.0 mg drug…

A: Asyou have asked multiple questions.So we will only answer the first part. If you any specific…

Q: need help with a chemistry question A solution has a density of 1.22g/mL. What volume of the…

A: Given: density of solution = 1.22 g/ml Mass of solution = 48.2 g

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.