Click pause and record the initial temperature (T) of water in the DATA TABLE FOR PART II (page 5).

Q: chemist adds 245.0mL of a 0.00585/μmolL calcium sulfate CaSO4 solution to a reaction flask.…

A: Molarity is defined as the number of moles of CaSO4 present in 1litre of the solution

Q: Can you help me with initial temperature (Ti) of water? I struggled with the measurement of the…

A: The thermometer given has 10 divisions between the difference of 10 degrees of temperature.

Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A:

Q: Classify each of the following as a physical change or a chemical change. For each chemical change,…

A: Physical change is the rearrangement of the molecules ( composition remains same) In Chemical change…

Q: A chemist prepares a solution of iron(III) bromide (FeBr3 ) by measuring out 7.19μmol of iron(III)…

A: Concentration =  no of molesvolume (L)

Q: What is the maximum mass of pure silver that could be extracted from 2.5kg of argentite, a silver…

A: Answer: We have convert the mass of Ag2S into moles of Ag2S to find out the maximum mass of Silver…

Q: Aqueous hydrobromic Acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: The balanced equation of the reaction is given and the moles of HBr and NaOH are calculated as…

Q: Pure methanol, CH3OH(l), combusts very quickly. 2 CH3OH(l) + 3 O2(g) → 2 CO2(g) + 4 H2O(g) If 46.5…

A: Given 2 CH3OH(l) + 3 O2(g) → 2 CO2(g) + 4 H2O(g) 46.5 mol of  methanol and find the mass of water

Q: A chemist adds 70.0mL of a 2.40 x 10^−4 mol/L copper(II) fluoride (CuF2) solution to a reaction…

A: Given: The volume of copper(II) fluoride (CuF2) solution added = 70.0 mL The molarity of the…

Q: Gaseous ethane (CH3CH3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO2)…

A:

Q: Use unit analysis to show how to calculate the volume occupied by 16.2 grams of aluminum. See the…

A:

Q: how many joules are there in 71.8 kcal (1 cal 4.184 j) remember to use the significant figure rule…

A: Approach to solving the question: Detailed explanation:Examples: Key references:

Q: What is the mass of 33.7 quarts of water (1 L = 1.057 quarts)? Recall that the density of water is 1…

A: There are several ways to express  the concentration of the solution.  Here we are required to find…

Q: Liquid hexane (CH,(CH,) CH, will react with gaseous oxygen (0,) to produce gaseous carbon dioxide…

A: The complete combustion reaction of hexane + O2 is 2C6H14 + 19O2 --------> 12CO2 + 14H2O

Q: A chemist must dilute 0.09 L of 2.98 M aqueous sodium nitrate (NaNO3) solution until the…

A: Initial volume = 0.09 L  Initial Molarity = 2.98 M  Final Molarity = 2.00 M  Final volume = ?

Q: chemist adds 0.24 L of a 0.0327 g/L magnesium fluoride (MgF2) solution to a flask. Calculate the…

A: Concentration in g/L is equal to the weight of dissolved solute divide by volume of solution  given…

Q: Gaseous methane (CH4) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO2)…

A: Given that : The mass of methane = 1.44 g The mass of oxygen = 7.3 g We have to calculate the…

Q: Calculate the concentration in mol/L of the chemist's iron(II) bromide solution. Round your answer…

A: given-mass of FeBr2 = 111 gvolume of FeBr2 = 250 mLto find-concentration in mol/L

Q: You set up a simple distillation apparatus to distill 200 mL of sugar aqueous solution containing 20…

A: The objective of the question is to determine the boiling temperature of a sugar-aqueous solution…

Q: A chemist prepares a solution of potassium permanganate (KMnO4) by measuring out 3.8 mg of potassium…

A: Weight of KMnO4= 3.8 mg = 3.8 × 10-3 g  (1g = 1000mg)  Volume (V) = 50 ml = 0.050 L (1L = 1000ml)

Q: A chemist prepares a solution of silver nitrate (A£NO,) by weighing out 262.7 g of silver nitrate…

A: Given data Mass of Silver Nitrates, w =262.7g Volume of Solution, v       =300mL

Q: Artists etch designs on metal jewelry using copper(II) sulfate solution. Calculate the volume, in…

A: Given,  The molarity of CuSO4 solution = 1.84 mol/L. The moles of CuSO4 = 0.54 mol.  The volume of…

Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A:

Q: A student sets up the following equation to solve a problem in solution stoichiometry. (The ? stands…

A: Cancel out the units to get the required answer

Q: 40.00 mL of unknown calcium hydroxide solution is titrated with 0.200 M standard nitric acid…

A: Using M1V1=M2V2

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

A:

Q: Look at the following solution to this sig fig problem and tell me what I have done wrong. Then show…

A: Unit inconsistency: You're adding together quantities with different units (kilograms and grams)…

Q: A student sets up the following equation to solve a problem in solution stoichiometry. (The ? stands…

A: We are going to determine the final unit.of this expression.

Q: A chemist prepares a solution of nickel(II) chloride (NICI,) by measuring out 1.2x 10 jumol of…

A: Moles of NiCl2=1.2×102 μmol Volume=250 mL

Q: Can liquid nitrogen gas and liquid oxygen gas be mixed with each other?

A: In this question, we will discuss about both liquid gases are mixed to each other or not.  I will…

Q: 3) An eager new legislator is enamored with how everything is expressed in powers of 10 in t metric…

A: Mole is a quantity of substance that contains 6.022 x 1023 units of that substance. It is the S.I.…

Q: A chemist adds 230.0 mL of a 0.049 mm has added to the flask. Be sure your answ Mu mol

A: Moles of NiCl2 = ( Molarity ) • volume  Moles of NiCl2 = ( 0.049 mmolL-1 ) • ( 230mL )  [ NOTE : 1m…

Q: A student sets up the following equation to solve a problem in solution stoichiometry. (The ? stands…

A: Answer :----

Q: You plot A vs Conc (mg/mL) for a set of 5 standards in mg/mL and get the equation for the line as…

A: Given: The best fit line for the absorbance v/s concentration plot is, => y = 0.310 x + 0.315…

Q: The solubility of benzic acid in water at room temperature is 0.38 g per 100 ml of water. If 4.62 g…

A: When benzoic acid is dissolved in 100 ml of hot water (assume all the benzoic acid dissolves) and…

Q: E with water. e concentration in g/dL of the chemist's aluminum chloride solution. Be sure your…

A:

Q: A chemist prepares a solution of barium chlorate (Ba(ClO3)₂) by measuring out 9.86 g of barium…

A:

Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Given: Mass of (HBr) = 18 g mass(NaOH)= 17.3 g Mass of HBr left =?

Q: A sample of butane gas was completely combusted in oxygen to produce energy. If 1.35 x 1024…

A:

Q: A major component of gasoline is octane (CH18). When liquid octane is burned in air it reacts with…

A: The balanced chemical equation for the combustion of octane is, C8H18(l) + 25/2O2(g) → 8CO2 +…