A student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate.) Fill in the missing part of this equation. Note: your answer should be in the form of one or more fractions multiplied together. (-1.7) =). 0 mmol. °C = ? kJ mol. °C x10 X 3 010 5

A student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate.) Fill in the missing part of this equation. Note: your answer should be in the form of one or more fractions multiplied together. (-1.7) =). 0 mmol. °C = ? kJ mol. °C x10 X 3 010 5

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter1: Matter And Measurements

Section: Chapter Questions

Problem 73QAP: A Different civilization on a distant planet has developed a new temperature scale based on ethyl...

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Magnesium chloride is an important coagulant used in the preparation of tofu from soy milk. Its solubility in water at 20C is 54.6 g/100 g. At 80C, its solubility is 66.1 g/100 g. A mixture is made up of 16.2 g of magnesium chloride and 38.2 g of water at 20C. (a) Is the mixture homogeneous? If it is, how many more grams of magnesium chloride are required to make a saturated solution? If the mixture is not homogeneous, how many grams of magnesium chloride are undissolved? (b) How many more grams of magnesium chloride are needed to make a saturated solution at 80C?
When chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give bromine, a red-brown liquid, and sodium chloride (ordinary table salt). A solution was made by dissolving 20.6 g of sodium bromide in 100.0 g of water. After passing chlorine through the solution, investigators analyzed the mixture. It contained 16.0 g of bromine and 11.7 g of sodium chloride. How many grams of chlorine reacted?
A Different civilization on a distant planet has developed a new temperature scale based on ethyl alcohol. The freezing point of ethyl alcohol (117C) is designated as 0J, and its boiling point (78C) is designated as 100J. Assuming that the relationship between C and J is linear, (a) draw a graph of the line using the data above. (b) what is the slope of the line? (c) what is the y-intercept of the line? (d) Write an equation to convert J to C.
3) Water is placed into a separatory funnel along with one of the following liquids: diethyl ether (density = 0.713g/mL) or dichloromethane (density - 1.33g/mL). The funnel is the opened, and the bottom layer is drained into a beaker. For which combination (water/diethyl ether or water/dichloromethane) would the water end up in the beaker? a) water/diethyl ether b)water/dichloromethane
The formula for making a popular diaper rash paste requires mixing 40 g of zinc oxide powder and 80 g of petrolatum. If one pound of zinc oxide powder costs $10 and 6 kg jar of petrolatum costs $90, how much would the diaper rash paste cost?
A student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate.) Fill in the missing part of this equation. Note: your answer should be in the form of one or more fractions multiplied together. (0.050 μg/dL) * ____ = ? g/mL
Complete the table below relating the values. Each value is =0, >0, or <0
The nutritional calorie (Calorie) is equivalent to 1 kcal. One pound of body fat is equivalent to about 4.1 x 103 Calories.If a runner expends 1850 kJ/h, how long (h) does she have to run to work off 6.05 lb of body fat? Enter your answer in decimal format with one decimal place. I'm not really sure how to start off this problem...
When a 0.67-g sample of olive oil is burned in a calorimeter, the heat released increases the temperature of 340g of water from 22.7 Celsius to 35.0 Celsius Part A. What is the energy value for the olive oil in kcal/g? Express your answer to two significant figures and include the appropriate units
How can we convert 6 x 102 J to kJ? Please show the significant figures conversion and solution.
Perform each of the following conversions be sure to set up proper conversion factor in each case A) 1.75 miles to kilometers B) 2.63 gallons to quarts C) 4.675 calories to joules D) 756.2 mm Hg to atmosphere E) 36.3 atomic mass to kilograms F) 46.2 in to centimeters G) 2.75 quarts to fluid oz H) 3.51 yard to meters
Do temperature conversions in steps to obtain results with correct numbers of sig figures: 1) T = 670 K --> t°C = _____ 2) t°C = +3400 °C --> T = _____ 3) t°F = +120 °F --> t°C= _____

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