calculate the mass of hydrogen in a balloon 10 meters in diameter filled with hydrogen gas at a pressure of 1atm and a temperature of 27 degrees celsius

The approximate distance from earth to the moon is 240 thousand miles. the approximate distance from earth to the sun is 93 million miles. in standard notation, the approximate distance from the sun to earth is miles greater than the approximate distance from earth to the moon. in scientific notation, the distance is m × 10n, where m is and n is .