Convert the following measurement. kg 4 5.4 x 10 g mol · L mol · dL

Q: Classify each change as physical or chemical. (a) the rusting of iron(b) the evaporation of…

A: Physical change changes the size, shape or phase of substance, Chemical change is a type of change…

Q: 2H*(aq) + Sn(s)–H2(g) + Sn²*(aq) ificant figures during intermediate calculations to avoid round off…

A: The cell reaction is: Sn + 2H+   ----->  Sn2+   +  H2 We have : E°cell = E°H+/H2   -   E°Sn2+/Sn…

Q: Two solid objects, A and B, are both at room temperature and then placed in boiling water. The…

A: Heat capacity - it is the amount of heat required to change the temperature by 1 Degree.

Q: What is the mass of a golf ball traveling at 82.0 ms 1? The rest mass of a golf ball is 45.9 g, as…

A:

Q: Two solid objects, A and B, are both at room temperature and then placed in boiling water. The…

A: Heat capacity is the amount of energy in the form of heat,  takes for increasing the temperature of…

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: a = 1.1x102 HCIO, 0.05 一 H + ClO, C -X 十X 十X 0.05 X

A: Given that 0.05M chlourus acid decompose into its ions. and its ionisation constant also given that…

Q: A saline solution used in intravenous drips for patients who cannot take oral fluids contains 0.92…

A: Given : Mass of NaCl : 7.7g Weight/Volume = 0.92 To calculate: volume of the saline solution.

Q: calculate volume H2=Volume displaced water

A: Given Mass of Empty Beaker is 141.2g, Beaker + Water is 388.3g,  mass of water is 247.1g, volume of…

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: The concentration of carbon monoxide in an urban apartmentis 48 mg>m3. What mass of carbon…

A:

Q: What volume of ethanol ( C 2 H 3 OH) is in 100.0 mL of 0.15Msolution? The density of ethanol is…

A: Molarity is defined as the amount of solute expressed in the number of moles present per liter of…

Q: A chemist prepares a solution of calcium bromide (CaBr2) by measuring out 3.4 x 102 μmol of calcium…

A: Since concentration in mmol/L we have to find  And concentration = moles of solute / volume of…

Q: A chemist prepares a solution of sodium thiosulfate (Na₂S₂O3) by measuring out 18. g of sodium…

A:

Q: The process in which adding a chemical compound to another chemical compound and observe physical…

A: Since we are observing physical changes only. Physical properties reflect quality of a substance.…

Q: 4. AGNO3(aq) + NaOH(aq) yes 5. CaChag) + NaOH(aa)

A: Silver nitrate will react with sodium hydroxide to form silver hydroxide ppt and soluble sodium…

Q: A stock solution of sodium chloride solution was prepared (at 25°C) by dissolving 250 mg of sodium…

A: Ammonium hydroxide is NH4OH. It will dissociate as : NH4OH(aq.)↔ NH4+ (aq.) +  OH- (aq.) Here,…

Q: A chemist prepares a solution of silver(I) nitrate (AgNO3) by measuring out 1.9 × 10 μmol of…

A:

Q: One method of manufacturing chlorine gas in a laboratory is to react manganese (IV) oxide with…

A:

Q: What is the symbol for the quantity defined by this expression: - log [H3O+]

A: This expression tells that the blank is the negative logarithm of the hydronium ion concentration.…

Q: When you perform the following operations, how many significant figures should your answer have?…

A:

Q: What is the mass in grams of Potassium Chloride present in 23.0 g potassium chloride of 12.50…

A: Here we assume that the mass percent of KCl = 23% or 0.23g we use

Q: What is 393.83 kJ/mol rounded to three significant figures?

A: Based on the significant figures rule, the number to be rounded off is followed by digit zero or…

Q: Calculating molárity ušing sóluté mcles A chemist prepares a solution of potassium permanganate…

A: Given : moles of KMnO4 = 15.2 micromol And volume of solution = 350 mL

Q: How many mL of liquid mercury with a density of 13.6g/mL must you dispense to have 1.56 x 10-3 mol

A:

Q: H20 KMNO,

A: Given reaction is syn dihydroxylation of alkene with KMnO4(potassium permanganate)

Q: Two solid objects, A and B, are both at room temperature and then placed in boiling water. The…

A: Heat capacity is amount of heat required by the object to change its temperature by degree 1.

Q: A chemist samples a river's water to measure the amount of fertilizer runoff from the area farms. In…

A: PPM and the PPB are units applied in atmospheric chemistry to represent the concentration of the…

Q: Knowing that 1 calorie = 4.184 joules and 1kWh = 3.6 x 106 Joules, convert the following: 2739…

A: Given: 1 calorie = 4.184 joules 1kWh = 3.6 x 106 Joules Toconvert: 2739 teraWh into nanocalories.

Q: chemist prepares a solution of barium acetate  BaC2H3O22  by measuring out  105.g  of barium…

A: Given that:  Mass of barium acetate = 105.g  Volume of solution = 250.ml = 250 ml×1L/1000ml = 0.250L…

Q: What is the mass of a golf ball traveling at 71.8 ms1? The rest mass of a golf ball is 45.9 g, as…

A: 45.9 g is the answer

Q: 1. XY,(aq) + T(s) –– > TX(s) + Y(s)

A: Given: A chemical reaction.  To find : Balanced chemical equation and type of reaction.  Solution :…

Q: A chemist prepares a solution of mercury(I) chloride (Hg, Cl,) by measuring out 0.00011 umol of…

A:

Q: If 42.7 mL of 0.202 M HCl solution is needed to neutralize a solution of Ca(OH)2, how many grams of…

A:

Q: Convert the following measurement. kg 2 4.7 × 10 g mol · L mol · dL

A: Since, 1 kg = 1000 g  kg = kilograms and g = gram  1 g = (1/1000) kg 1 g = 0.001 kg And, 1 L = 10 dL…

Q: The distance from Earth to the Sun is 1.50 x 10 km. What is the distance expressed in gigameters?…

A: Convert Km to Gm ---

Q: substance reacts violently with water. The substance melts at 73.59 oC. The substance was named…

A: 1. Physical properties are used to observe and describe matter. Physical properties include:…

Q: A solution of cobalt(II) chloride is analyzed, and the concentration of cobalt(II) ions is found to…

A: The given data is as follows: The concentration of cobalt(II) ions = 0.42 mol/L The concentration of…

Q: The concentration of carbon monoxide in an urban apartment is 48 µg/m°. What mass of carbon monoxide…

A: Concentration of CO = 48 µg / m3 or 48 × 10-6 gm/m3 Volume of room = 12 × 12.5 × 21.5 ft. 1 Feet =…

Q: 378 g f) 3.8 x 10 mol x 0.0670 mol h) (2.3 x 10 m) (4.567 x 10 m)= 2.3x100m 230m

A: Here some values are given, we have to find the final answer of this given question. For…

Q: Convert the following measurement. kg 3 1.6 x 10° g x10 mol · L mol · dL

A:

Q: A student needs to prepare 100. mL of 0.618 M Cu(NO3)2 solution.  What mass, in grams, of copper(II)…

A: The mass of required copper(II)nitrate is determined by using given volume and molarity.The molarity…

Q: Convert 76 kcal to kJ

A: Energy is measured in joule or calorie. 1 Kg = 1000 gram 1 kJ = 1000 joule 1 KCal = 1000 cal

Q: A chemist prepares a solution of potassium permanganate (KMNO,) by measuring out 0.28 umol of…

A: Rules of significant figures: Any non-zero number is significant. Zeros between significant numbers…

Q: A chemist prepares a solution of mercury(I) chloride (Hg,Cl,) by measuring out 0.00116 pmol of…

A:

Q: A chemist prepares a solution of zinc nitrate (Zn(NO, by measuring out 5.2 x 10 umol of zinc nitrate…

A: Number of moles = 5.2 × 102 u mol Volume of solution = 500 ml  ....Or  because 1L = 1000 ml…

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

A:

Q: You can easily measure the volume of NaOH or HCl solution using a graduated cylinder. What piece of…

A: By taking volume and density we can measure the mass of NaOH or HCl without using a balance. Density…

Q: A chemist adds 165.0 mL of a 0.0395 mmol/L copper(II) sulfate (CuSO, solution to a reaction flask.…

A: Molar mass of Cu(II)SO4 is 159.61 g/mol

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.