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Calibration of the Picnometer, mass of empty picnometer is 30.708g, mass of picnometer + water is 61.018g, what is the mass of water and what is volume of empty picnometer.
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- The Kohinoor Diamond (d=3.51g/cm3) is 108 carats. If one carat has a mass of 2.00102 mg, what is the mass of the Kohinoor Diamond in pounds? What is the volume of the diamond in cubic inches?Density of Unknown Liquid, mass of picnometer + liquid is 61.005, mass of empty picnometer 30.297, what is the mass of liquid.Mass of picnometer + liquid, mass of liquid is 30.708g, mass of picnometer + liquid is 61.005g, what is the density of liquiid.
- The Mass of Empty Beaker is 141.2g, Beaker + Water is 388.3g, Calculate mass of water and calculate volume of water.How many mL of 0.556 molar magnesium chloride must a scientist pour into a beaker to have 17.6 g of magnesium chloride in the beaker? Put answer in box in regular non scientific notation with one past decimal.1) State your interpretation of the meaning of the slope for the first graph you prepared of Volume of Steel Nuts (mL) versus Number of Steel Nuts. Hint: Understanding the meaning of a slope involves several factors: the units which are a ratio of the y axis units over the x axis units, the interpretation of the slope as “number of the y axis units for every one of the x axis units” and the concept that constructing the best line or curve that follows the trend in the data is a sort of averaging of the random error throughout the data.
- What is the si unit for the mass of flourUsing the mass of the empty beaker and the mass of the beaker + KOH, calculate the mass of KOH added. Then, convert this mass, to the number of moles of KOH added. g=grams Mass of empty beaker= 30.128g Mass of beaker and KOH=33.629gA new linear temperature scale, degrees Zunzol (Z), is based on the freezing point and boiling point of a newly discovered compound zunzol. The freezing point of zunzol, -117.3 °C, is defined as 0 "Z, and the boiling point of zunzol, 78.4 °C, is defined as 100 "Z. What is the freezing point of water in degrees Zunzol? freezing point: What is the boiling point of water in degrees Zunzol? boiling point: "Z "Z
- A garage manager must determine the number of metal ball bearings (BBs) in a stock container by mass measurements. He counts out 5 BBs and finds their total mass to be 1.9 g. He also finds the total mass of the stock container and the BBs to be 239.3 g and the mass of an identical, empty stock container to be 115.8 g. The store manager then uses his data to calculate the number of BBs in the stock container: Average mass of one BB = 1.9/5 = 0.4 g Mass of BBs in container = 239.3 g - 115.8 g = 123.50 g Number of BBs in container = 123.50/0.4 g= 300 BBs (a) Evaluate the manager’s calculations with regard to significant digits. If necessary, rewrite any steps, recalculating with the adjusted quantities. For any step that you have to rewrite, explain why the manager’s calculation is in error. (b) Should the manager regard the answer to the calculation in (a) as a perfect measure of the number of ball bearings in the container? (c) How could the manager have changed his procedure to…O MEASUREMENT AND MATTER W start Page Predicting the units of the solution to a basic quantitative... A student sets up the following equation to solve a problem in solution stoichiometry. (The ? stands for a number the student is going to calculate.) Enter the units of the student's answer. 1 mL 0.59 mL - 3 10 x10 108.39 mol II2. Calculate the mass of each of the following: a. 20.0 mL of nitrogen gas b. 7.0 L of hydrogen gas 3. Calculate the number of atoms or molecules of each of the following: a. 1000.0 mL of oxygen gas b. 200.0 mL of sulfur dioxide gas
