User Account

All Pages

Explain what is the empirical formula of the compound

Assignment Help Chemistry
Reference no: EM13247072

A sample of an unknown compound was analyzed and found to contain 19.97% phosphorus and oxygen - what is the empirical formula of the compound?

Reference no: EM13247072

Questions Cloud

Calculate developed torque at a full load armature current : A 600 V, dc shunt motor has armature and field resistance of 15 ohms and 600 ohms respectively. When the motor runs unloaded, the ine current is 3 A, and the speed is 1000rpm. Calculate the developed torque at a full load armature current of 50 A.
Determine maximum energy store by capacitor : A parallel plate capacitor consists of 2 square plates 19 cm per side spaced .55 mm apart with only air between them. What is the maximum energy that can stored by the capacitor
Explain how is high temperature defined : Is 373 K a high temperature? Some thermodynamic principles only hold at "high temperature". How is "high temperature" defined
Calculate the distance the spring was compressed : A 1432.0 g mass is on a horizontal surface with μk = 0.44, Calculate the distance the spring was compressed. What is the velocity of the mass as it loses contact with the spring
Explain what is the empirical formula of the compound : A sample of an unknown compound was analyzed and found to contain 19.97% phosphorus and oxygen - what is the empirical formula of the compound
Determine the total charge on spherical shells : Two identical conducting spherical shells S1 and S2 carry charges Q1 and Q2, respectively, Determine the total charge on S1 and S2 after they are separated
How water produce hydronium ion and hydroxide ion : Water autoionizes to produce hydronium ion and hydroxide ion. The product of the concentrations of these ions equals the water autoionization constant, Kw. This ionization constant depends on temperature, the enthalpy change, and the entropy chang..
How would direction of the total magnetic field change : You have a wire with a current that points upwards. If you put a compass east of that wire, how would the magnitude and direction of the total magnetic field change
Define the whole number ratio of manganese to oxygen : A 12.00 g sample of manganese is heated and allowed to react completely with the oxygen in the air to form an oxide having a mass of 18.99 g. What are the moles for each component? Also, what is the whole number ratio of manganese to oxygen.

Reviews

Write a Review

Chemistry Questions & Answers

  What mass of o2,in grams,is required

Ethane C2H6 burns in oxygen a.) what are the products of reaction b.)write the balanced equation for the reaction

  Calculate the total number of moles of cl- ions in solution

0.134 mole of KCl and 0.185 mole of CaCl2 were dissolved in water. calculate the total number of moles of Cl- ions in the solution.

  Calculate the molarity of a solution

Calculate the molarity of 736 mL of a solution that contains 153 g of sucrose C12H22O11.

  Calculate the enthalpy change for the dissolution

Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.

  How many h are needed for the balanced half-equation

Consider the following unbalanced reduction half equation. MnO4-+H=+e- > Mn2++H2O. How many H= are needed for the balanced half-equation.

  Which of the following gases would show most ideal

Which of the following gases at 500 K would show most ideal behavior?

  Define the resulting solution is then titrated

The resulting solution is then titrated with 0.1041 M sodium hydroxide, and 12.39 mL of the sodium hydroxide solution are needed to reach a phenolphthalein end point.

  Compute the molarconcentration of oxygen

calculate the molarconcentration of oxygen in water at 25 celsius for a partialpressure of 0.23 atm. the henry's law constant for oxygen

  How many grams of nh3 can be produced

A 4.07 L sample of H2O(g) reacts at a temperature of 375°C and a pressure of 679 mm Hg. How many grams of NH3 can be produced?

  Explain a pure saturated vapor and a cold surface canbe

The coefficient of heat transfer between a pure saturated vapor and a cold surface canbe predicted by the following equation:

  What is the density of the ore\

A piece of metal ore weighs 8.25 g. When a student places it into a container of water, the liquid level rises from 21.25 mL to 26.47 mL. What is the density of the ore?

  State what would the temp change if the gas were heated

What would the temp change if the gas were heated with the same amount of energy in a container of fixed volume? (assume the specific heat capacity of N2 is 1 J/gK)

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd