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. kg m g•cm 1.2 x 10 x10 = ? S S

Q: A chemist prepares a solution of potassium iodide (KI) by weighing out 25.38 g of potassium iodide…

A: Mass of potassium Iodide = 25.38 g Volume of water = 100. mL The concentration is needed in the unit…

Q: A chemist must dilute 78.3 mL of 9.91 mM aqueous calcium sulfate (CaSO4) solution until the…

A: For dilution, we can use the formula:Here, M1 = molarity of the original solutionV1 = volume of the…

Q: In a laboratory, you determine that the density of a certain solid is 5.23 x 10 ° kg/mm. Convert…

A:

Q: A chemist must prepare  550.mL  of  60.0mM aqueous potassium dichromate  K2Cr2O7 working…

A: Dilution is the process of decreasing the concentration of a solute by mixing more solvent. Dilution…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Conversion -->  1 kg = 1000 g  1 m = 100 cm

Q: A chemistry student needs 60.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

A: The density is an intrinsic property that given the mass of an object per unit volume.…

Q: A chemist must prepare 450. mL of 1.00 M aqueous barium chloride (BaCl,) working solution. She'll do…

A: Molarity of stock BaCl2 solution(M1) = 1.27 M  Molarity of final BaCl2(M2) = 1.00 M V2 = 450. mL

Q: A chemistry student needs 70.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

A:

Q: Convert 6.4 x 10^-28 j-s/ kg to erg- min /lb. Note that “j” means “ joule” - it is one of the units…

A: 6.4*10-28 j-s/Kg to erg-min/lb Conversion required : 1 J = 107 ergs 60 sec = 1 min => 1 sec =…

Q: A chemistry student needs 15.0mL of tetrahydrofuran for an experiment. By consulting the CRC…

A:

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: The conversion of quantity from one unit system to another unit system is known as unit conversion.…

Q: A chemistry student needs 30.0 g of diethylamine for an experiment. By consulting the CRC Handbook…

A: Ans

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Given -- >  (-1.8 x 105 kg.m/s )  We know that , 1kg = 1000 g  1 m = 100 cm

Q: A chemistry student needs 40.0 mL of glycerol for an experiment. By consulting the CRC Handbook of…

A: Given  Volume of glycerol = 40 mL  density of glycerol  = 1.26 gram cm-3 or 1.26 gram/cm3 Mass of…

Q: mol aqueous L A chemist must prepare 875. mL of 10.0 mM aqueous calcium sulfate (CaS0,) working…

A: On dilution, the concentration of solution decreases but the number of moles remain constant. Write…

Q: A student adds 3.993 grams of salt to a beaker and then adds an additional 69.220 grams of water to…

A: Percent mass: Percent mass of a compound in a solution is defined as the ratio of the mass of the…

Q: A chemist must dilute 73.5 mL of 3.19 M aqueous zinc nitrate (Zn . She'll do this by adding…

A: (Before dilution) Initial volume of aqueous zinc nitrate Zn(NO3)2 solution = V1 = 73.5 mL  (1mL =…

Q: Aqueous hydrochloric acid HCl will react with solid sodium hydroxide NaOH to produce aqueous…

A:

Q: A chemistry student needs 45.0 mL of diethmylamine for an experiment. By consulting  the CRC…

A: Given,Volume of diethylamine = 45.0 mL = 45.0 cm3         (1mL = 1cm3)Density of diethylamine =…

Q: A chemist prepares a solution of potassium dichromate  K2Cr2O7  by measuring out  46.8μmol of…

A:

Q: A chemist prepares a solution of mercury(I) chloride Hg2Cl2 by measuring out 0.000957μmol of…

A: The concentration is approximately 3.83 x 10-9 mol/L

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Since, 1Kg = 1000 g then,

Q: he? stands for a number the student is going to calculate.) in the missing part of this equation.…

A: In this question we need to identify the relationship between the two units and then we will…

Q: A bar of gold with a mass of 2060.5 g has the following dimensions: 7.30 cm by 3.25 cm by 4.50 cm.…

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

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: We know the following->1 = 10-6 g1L = 10 dL1L = 1000ml 1dL = 100 ml

Q: The metric system uses prefixes to represent larger or smaller amounts based on the number ten. What…

A:

Q: Normal body temperature is 98.4°F.  Use your Celsius temperature from the above question (81) to…

A:

Q: 3. A student is using a 10 mL volumetric pipet to dispense water and wants to test how accurate the…

A: A numerical problem based on uncertainty measurements, which is to be accomplished.

Q: A chemistry student weighs out 0.146 g of chloroacetic acid (HCH,CICO,) into a 250. mL volumetric…

A:

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: The conversion of units into one form or the other by mathematical operations is called as unit…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A:

Q: A chemistry student needs 85.0 mL of diethylamine for an experiment. By consulting the CRC Handbook…

A: 85 ml of diethylamine is taken.  The density of it is 0.706gcm-3

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: 1200000 g.cm/sExplanation:

Q: Multiply the weight from Step 2 by the conversion factors from Step 3. Be sure to rearrange the…

A:

Q: e the chemist has added to the flask. Be sure your answe mg x10 X 3

A: Given,           Volume of Hg2Cl2 solution= 385.0 mL = 0.385 L            Concentration of Hg2Cl2…

Q: Solid PbBr2 (Ksp = 6.6 x 10-6) added to a solution of AgNO3, which results in the formation of solid…

A: Given :  Ksp of PbBr2 = 6.6 x 10-6  Ksp of AgBr = 5.5 x 10-13

Q: Carry out the following operations and express the answer with the appropriate number of significant…

A: For multiplication and division: Check the LEAST number of significant figures. For addition and…

Q: Calculate the volume in mL  of the potassium dichromate stock solution that the chemist should pour…

A:

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A:

Q: A chemistry student needs 90.0g of carbon tetrachloride for an experiment. The density of carbon…

A:

Q: A student is given the following question: "What is the mass of a gold bar that is 7.379 × 10–4 m3…

A: We know,Mass = Density x Volume

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.