Lab 1 Report_ Measurements

4.05 kg + 567.95 g + 100.1 g

Someone invents a new unit of measurement called a musk and defines that 5 musk is equal to exactly 107g. How many musk are in 53.95 g? 5.395x108 musk O 5.395x107 musk 1.079x107 musk O 1.079x10-6 musk O 9.270x10-9 musk

4. You are trying to determine the volume of your setup according to the procedure in the lab manual. You have determined the following: Mass Standard CaCO3 0.4453 g % CaCO3 Pi Pf Ti Tf 99.6 % 50.5 kPa 129.5 kPa 20.33 °C 21.88 °C What is the volume of the setup in L? The volume is 0.138 L

O density = (mass % NaCl) X 1.0046 mass % of NaCI = (density) X 0.0035 O density = 0.0035 X (mass % of NaCl) + 1.0046 %3D mass % of NaCI = 0.0035 X (density) + 1.0046 Question 2 Which of the following is not intensive property? density boiling point melting point volume Question 3 The density of an object is

What is 63.23 µg in units of kg? O 6.323x10-6 kg 6.323x104 kg O 6.323x10-8 kg O 6.323x10-2 kg O 6.323x1010 kg

Some people like to make their own hand lotion because it can be less expensive than buying it and they have the ability to add only the fragrances that they like. A recipe for hand lotion calls for mixing 253 g of water (H₂O) with 264 g of glycerin (C3H8O3). This recipe makes a total of 685 mL of hand lotion. Incorrect. What is the mass percent of glycerin in the hand lotion? i ! % Hint The mass percent is the concentration of the solution as the percent of solute in a given mass of solution. Assistance Used

How many mg does a 433 kg sample contain? 4.33 × 10-4 mg 4.33 × 107 mg 4.33 x 10³ mg 4.33 × 106 mg 4.33 × 108 mg

Cinnamaldehyde (132.16 g/mol) is used as a flavoring agent. What mass of cinnamaldehyde must be added to 175 g of ethanol to give a solution whose boiling point is 82.57°C? (For ethanol, Kb = 1.22°C/m; boiling point of pure ethanol = 78.37°C) Multiple Choice 76.2 g 78.5 g 79.6 g 67.8 g 62.4 g

A firkin = 40.82 kg (inexact). How many firkin in 76.2 kg? 3110 fir O 1.866 fir 1.87 fir 3.21x10-4 fir 0.5357 fir

A chemist mixes 34.9 g of diethyl ether with 52.1 g of 2-ethyltoluene and 9.03 g of butanoic acid. Calculate the percent by mass of each component of this solution. Be sure each of your answer entries has the correct number of significant digits. component mass percent diethyl ether 2-ethyltoluene 0% 0% butanoic acid

A 0.235 mL sample of carbon tetrachloride (density = 1.59 g/mL, MM = 153.81 g/mol) contains how many AMU of Cl? Note: Use 6.022 x 1023 and/or 1.661 x 10-24 as appropriate. 5.18 x 1022 2.42 x 10-3 2.07 x 1020 1.30 x 1022 2.07 x 1023 0.333 g of a hydrocarbon (CxHy) was analyzed by combustion analysis and 1.009 g of CO2 (MM = 44.01 g/mol) and 0.516 g of H2O (MM = 18.02 g/mol).   Which of the following is the correct empirical formula of the hydrocarbon?    C2H4 C2H5 C3H7 C2H3 CH3

A chemist prepares a solution of iron(II) bromide (FeBr₂) by measuring out 491. g of iron(II) bromide into a 500. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's iron (II) bromide solution. Be sure your answer has the correct number of significant digits. ? mol/L x10 X Ś 00. 18 Ar

An acid is dissolved in another acid. Acid i has a specific gravity of 2.46 and a mass of 50 grams. Acid 2 is 50 mL What is the percentage by volume of the solute if Acid i is the solute in the solution? Assume the density of water to be i gram per ml. O 71.0983 O 40.6504 O 100.0000 O 28.9017

Determine how many grams of oxygen will be reacted given 32grams of hydrogen H2 gas.

An aluminum plant produces 99 million kg of aluminum per year.

On average, there are 0.2083 g CaCl2 in 1 L bottled water. How many molecules of CaCl2 are in 1 L bottled water? (Ca = 40.08 g/mol, Cl = 35.45 g/mol) %3D

A chemist dissolved 7 grams of a substance in water. The resulting solution has a mass of 15 grams and a density of 1.50 grams/mL. What is the mass/volume percent of the solution? 51.3333 70 46.6667 0.5123

How many grams are in 1.20 kg? O 1.20 EO g О 1.20 E-3 g О 1.20 E-1g O 1.20 E3 g

0.23 M potassium acetate could be written as 2.3 mmol KC2H3O2/L true or false

93. g/mL * 32. mL = ___ g

Parts per million (ppm) is a common way to express small concentrations of a solute in water. A sample of tap water that is. 25 ppm Cl contains 25 grams of Cl for every 1,000,000 grams of water. Which units are numerically equal to ppm for dilute aqueous solutions? ng/L cg/L mg/L µg/L O g/L

Predict the products for the following reaction (ignore balancing): O Sn3(PO4)2 (aq) + KNO3(aq) O Sn3(PO4)4 (s) + K (s) + NO₂(g) O No reaction O SnPO4 (s) + KNO3(aq) O Sn3(PO4)2 (s) + KNO3(aq) Consider the combustion of octane (C8H18), given the following unbalanced equation: O 227 g tin(II) nitrate (aq) + potassium phosphate (aq) O 4.54 g O 226 g O 79.8 g O 45.4 g C8H18 + O2 → What is the mass of H₂O (MM = 18.02 g/mol) will be generated by the complete combustion of 159.7 g of octane in excess oxygen? CO₂ + H₂O [unbalanced] 6.6 6.67

Calculate the volume in liters of a 4.0 × 10 μM magnesium fluoride solution that contains 50.0 mmol of magnesium fluoride (MgF₂). Round your answer to 2 significant digits. L 0 D 5 ? 1 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessibility F10 F11 FO FB F7 esc 1 Explanation 2 Check F2 3 x10 80 F3 X $ 4 000 F4 % 5 F5 H A 6 F6 & 7 U * 00 8 ( 9 ) 0 O P = D dl. Ar

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