How many moles are in 12.2 g of copper sulfate

Q: A beaker of water of releases 1829.8 J of heat while cooling 39.0°C. What is the mass of the sample?…

A:

Q: Platinum has a molar mass of 195 g/mol. If you have a ring that contains 2.3 g of platinum, how many…

A: given molar mass M =195g/mol we know molar mass M = m/n where m = mass of substance n = number of…

Q: A sample of pure aluminum has a mass of 10.1 g. Calculate the HINT (a) moles in the sample moles (b)…

A:

Q: How many grams of water 1H2O2 have the same number of oxygen atoms as 1.0 mol of oxygen gas?

A: 2H2O→2H2+O2 Molar mass of H2O=18 g Molar mass of O2=32 g

Q: Compare temperatures TA and Tc. p (atm) 5 4 3 2 1 0 1 ● TA TC TA = TC not enough information → V…

A:

Q: i need to know how they got the value of 52.89 from the eqaution

A: Given Data : Y = 1.12 a = 0.1 mm = 10-1 mm  K1c = 1.05MPa.m0.5 To Find :  Part (b) how to get the…

Q: Use Avogadro’s law to complete the table (assume pressure and temperature to be constant).

A: Given data: Volume V1=38.5 mL Number of moles n1=1.55×10-3 mol Volume V2=49.4 mL Number of moles…

Q: Consider the dissolution of CaCI2: CaCl2(s) Ca (aq) + 2CI (aq) AH = -81.5 kJ/mol A 15.0-g sample of…

A: Given compound is --> CaCl2  Amount of substance = 135 grams Amount of compound = 15 grams Atomic…

Q: 3) Calculate the osmotic pressure of 25% C 37) of the urea solution at temperature 1070.7 KPa…

A:

Q: If a sample of salt is in water in a constant pressure calorimeter with a heat capacity of 35.5 J/℃…

A: Given : The heat capacity of calorimeter, Cv =  35.5 J/℃ Salt is FeCl2 Mass of Salt = 2.288 g Mass…

Q: If the Co-efficient of linear expansion of a certain steel is 12x10-6 per °C, what is the…

A: Given : Coefficient of linear expansion (α) = 12 × 10-6 per °C

Q: Buckminsterfullerene is the famous "buckyball" molecule with the molecular formula C60. It has a…

A: Allotropes of Carbon: Allotropy is a property where an element can exist in two or more different…

Q: A gas is held at a constant pressure with an initial volume and temperature of 50 mL and 127 oC.,…

A: Given data: Pressure is constant Initial volume (V1) = 50 mL Initial temperature (T1) = 127°C New…

Q: what is the density of ideal gas in a room whose volume is 120 cubic meter at 100kpa and 25°c

A: Write the expression for the ideal gas equation and rearrange the equation to obtain the expression…

Q: 4. Temperature effect on the decomposition of drug Y was evaluated at two temperatures; 40 and 60°C.…

A:

Q: The most dangerous particles in polluted air are those with diameters less than 2.5 μm because they…

A: Stoke's velocity is given by:

Q: A coffee cup calorimeter with mass of 27.43  - grams is filled with water at 12.15 oC so that the…

A: In the given question, Mass of calorimeter (m1) = 27.43gm Total mass of calorimeter and water (m) =…

Q: How many moles of CO gas can be in a 3200 mL container at 27°C and a pressure of 1125 mmHg?

A: Given: The volume (V) of the CO gas is 3200 mL. The pressure (P) of the CO gas is 1125 mm of Hg. The…

Q: Carbonated beverages are essentially a solution of CO₂ in water. If the partial pressure of CO₂ used…

A:

Q: Assume that air consists of 80% N₂ and 20% O₂ by mole. Under the STP conditions, what is the mass of…

A:

Q: The composition of air is taken to be 79 mole% nitrogen and 21 mole% oxygen. Calculate the average…

A: Given data: The percentage of moles of nitrogen in air is n1=79%. The percentage of the moles of…

Q: 5) Two moles of an oxygen gas (O₂) are put in a container with a volume of 0.0025m³. If the…

A: Write the given values with the suitable variables. n=2 molV=0.0025 m3T=305 °C=305+273 K=578 K Here,…

Q: 1. A walrus transfers energy by conduction through its blubber at the rate of 165 W when immersed in…

A:

Q: The radius of an artery decreases from 1.2 to 0.50 cm due to atherosclerosis. If the average blood…

A:

Q: 17. If I have 6 moles of a gas at a pressure of 7.9 atm and a volume of 15 liters, what is the…

A:

Q: The average speed of a sample of Ar atoms is 437 m/sec. What is the temperature of the sample? (Mar…

A:

Q: A water molecule has a diameter of about 0.275 nm. How many hours would it take for a water molecule…

A:

Q: Steel coated with a thin layer of ceramic to help protect against corrosion. What do you expect to…

A: Thermal expansion: The propensity of matter to alter its form, area, volume, and density in reaction…

Q: You are at a restaurant eating lunch with a friend. After the meal, your friend realizes they left…

A: From calorimetric, the expression is,

Q: What volume is occupied by 1 mole of an ideal gas at pressure of 1 atm and temperature of 0°C

A: The volume is occupied by 1.00 mol of an ideal gas at 1.00 atm and 0.00C

Q: At 25°C the vapour pressure of pure pentane is 511 torr and that of hexane is 150. torr. What is the…

A:

Q: 1. A walrus transfers energy by conduction through its blubber at the rate of 165 W when immersed in…

A:

Q: Compute Vm, Vbar, and Vrms for an oxygen molecule at 300 K. What are the corresponding values at…

A:

Q: molar specific volume

A:

Q: What is molar mass

A: In chemistry, the molar mass of a chemical compound is defined as the mass of a sample of that…

Q: Compare this value with a standard value. Compute the percent difference between the two and discuss…

A:

Q: of the Oxygen and 4. a) What are the rms-speeds V, rms the Nitrogen molecules at 20 degrees Celsius?…

A: Given  MO2 = 32g/mol MN2 = 28g/mol T = 20°C = 273.15+20 =293.15 R = 8.3 J⋅K−1⋅mol−1 Formula to find…

Q: Determine the change in enthalpy per Ibm of nitrogen gas as its temperature change from 500°F to…

A:

Q: Calculate for the final boilir aqueous solution of KBr. The b water is 0.512 °C kg mol·1, anc…

A: We have givenAqueous solution of KBr (M)= 2.70 MBoiling point constant (k)= 0.512 °C Kg mol-1and…

Q: 2. If the pressure exerted by a gas at 77 °F in a volume of 1L is 5 atm, how many moles of gas are…

A: The temperature of the gas,(T)=77 °F=298.15 K ------(1) [Given] [Using 77 °F=298.15 K] The volume of…

Q: Explain why an egg cooks more slowly in boiling water in Denver than in New York City.

A: New York City is lies along the ocean level while Denver city is about 1 mile from ocean level.…

Q: Show that the following concentration profile satisfies Fick's second law of diffusion -x² nd C(x,t)…

A: We can easily check if the profile satisfies Fick's second law by using the equation of Fick's…