document.write( "Question 429087: To prepare a 5% solution of baking soda in 500mls of water how much baking soda do I need and how would I mathmatically figure this?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #298127 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
To prepare a 5% solution of baking soda in 500mls of water how much baking soda do I need and how would I mathmatically figure this?
\n" ); document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "Baking soda is measured by weight, so we must consider the solution is by\r\n" );
document.write( "weight, not by volume.  1 milliliter of water weighs 1 gram.  So let x be the\r\n" );
document.write( "number of grams of baking soda to add.  Then the concoction would weigh 100+x\r\n" );
document.write( "grams.\r\n" );
document.write( "\r\n" );
document.write( "So we have the equation:\r\n" );
document.write( "\r\n" );
document.write( "\"x%2F%28100%2Bx%29=.05\"\r\n" );
document.write( "\r\n" );
document.write( "\"x+=+.05%28100%2Bx%29\"\r\n" );
document.write( "\r\n" );
document.write( "\"x+=+5+%2B.05x\"\r\n" );
document.write( "\r\n" );
document.write( "\"x+-+.05x+=+5\"\r\n" );
document.write( "\r\n" );
document.write( "\"1.00%2Ax-.05%2Ax+=+5\"\r\n" );
document.write( "\r\n" );
document.write( "\".95x+=+5\"\r\n" );
document.write( "\r\n" );
document.write( "\"x+=+5%2F.95\"\r\n" );
document.write( "\r\n" );
document.write( "\"x+=+5.263157895\" grams of baking soda.\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );